Inventor

Ta-Yung Yang

Inventor

Milpitas, CA, US

Overview

1988–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 284 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H02Mprimary

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems42%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications21%

H05BElectric heating5%

H03KPulse technique4%

G05FSystems for regulating electric or magnetic variables3%

H10DInorganic electric semiconductor devices3%

H02JElectric power networks3%

Y02PClimate change mitigation technologies in the production or processing of goods2%

H02HEmergency protective circuit arrangements2%

G01RMeasuring electric variables2%

PatentTitleYear

10,741,348Power transmission apparatus2020 10,601,238Charging apparatus and charging control circuit thereof and charging control method2020 10,566,893ZVS control circuit for use in a flyback power converter2020 10,560,012ZVS control circuit for use in a flyback power converter2020 10,531,528LED drive circuit with a programmable input for LED lighting2020 10,528,067Interface device and interface temperature monitoring device2020 10,412,796LED drive circuit with a programmable input for LED lighting2019 10,401,929Control circuit for programmable power supply2019 10,298,073Method and apparatus for controlling wireless induction power supply2019 10,298,074Method and apparatus for controlling wireless induction power supply2019 10,181,734Charging control method and charging system, power delivery unit, and power receiver control circuit using the method2019 10,181,782Flyback power converter circuit with active clamping and zero voltage switching and conversion control circuit thereof2019 10,170,923Adaptive buck converter with monitor circuit and charging cable using the same2019 10,141,867Switching control circuit with signal process to accommodate the synchronous rectifier of power converters2018 10,103,616Flyback power converter circuit with active clamping and zero voltage switching and conversion control circuit thereof2018 10,038,387Control circuit for active clamp flyback power converter with predicted timing control2018 10,038,384Control circuit for an inverter with small input capacitor2018 10,014,786Flyback power converter and synchronous rectification (SR) switch control circuit and power switch control circuit thereof2018 10,014,783Switching regulator with PFC function and control circuit and control method thereof2018 9,983,606Regulation circuit associated with synchronous rectifier providing cable compensation for the power converter and method thereof2018 9,979,214Adaptive buck converter and charging cable using the same2018 9,966,833Switching regulator capable of reducing current ripple and control circuit thereof2018 9,966,770Charging apparatus and charging control circuit and control method thereof2018 9,954,451Programmable frequency decrease circuit for a programmable power supply2018 9,921,627'Control circuit for programmable power supply'2018 9,800,078'High efficiency charging system and charging circuit therein'2017 9,762,144'Switching control circuit with signal process to accommodate the synchronous rectifier of power converters'2017 9,647,561'Programmable current limit circuit for a programmable power supply'2017 9,582,054'Method and apparatus for selecting the output of programmable power adapter'2017 9,520,767'Protection circuit for power converter'2016 9,509,224'Method for controlling synchronous rectifier of power converter and control circuit using the same'2016 9,502,982'Method and apparatus of frequency modulation for power saving of adaptive power converter'2016 9,407,142'Method and apparatus for controlling programmable power converter'2016 9,407,141'Control circuit of power converter and method therefore'2016 9,391,528'Active clamp circuits for flyback power converters'2016 9,344,002'Adaptive sampling circuit for detecting the demagnetized voltage of the transformer'2016 9,343,982'Primary-side controlled programmable power converter'2016 9,343,917'Control circuit for charging battery through programmable power supplier'2016 9,337,737'Control circuit with fast dynamic response for power converters'2016 9,306,464'Synchronous rectifier control circuits of power converters'2016 9,306,459'Control circuit for burst switching of power converter and method thereof'2016 9,300,199'Under-voltage protection circuit for programmable power supplies'2016 9,280,192'Programmable power supply'2016 9,276,483'Control circuit for active-clamp flyback power converter with programmable switching period'2016 9,270,184'Control circuit and terminal for cable compensation and wake-up of primary-side regulated power converter'2016 9,252,674'Transistor gate driver with charge pump circuit for offline power converters'2016 9,252,676'Adaptive active clamp of flyback power converter with high efficiency for heavy load and light load'2016 9,236,806'Method and apparatus for controlling programmable power converter with low standby power loss'2016 9,218,737'Receiving control circuit for a wall control interface with phase modulation and detection for power management'2015 9,184,665'Control circuit of power converter with temperature control and method for controlling power converter'2015 9,159,450'Sampling circuit for measuring reflected voltage of transformer for power converter operated in DCM and CCM'2015 9,148,060'Switching controller with burst mode management circuit to reduce power loss and acoustic noise of power converter'2015 9,141,118'Switching current synthesis circuit for power converter'2015 9,142,952'Multi-function terminal of power supply controller for feedback signal input and over-temperature protection'2015 9,093,918'Control circuit for offline power converter without input capacitor'2015 9,077,258'Regulation circuit associated with synchronous rectifier providing cable compensation for the power converter and method thereof'2015 9,049,764'LED drive circuit with a programmable input for LED lighting'2015 9,007,786'Switching controller for flyback power converters without input capacitor'2015 8,934,266'Adaptive slope compensation programmable by input voltage of power converter'2015 8,908,396'Control circuit for controlling the maximum output current of power converter and method thereof'2014 8,902,999'Isolation interface circuit for power management'2014 8,884,684'Charge pump circuits having frequency synchronization with switching frequency of power converters'2014 8,866,512'Feedback terminal of power converter having programming function for parameter setting'2014 8,854,841'High-speed reflected signal detection for primary-side controlled power converters'2014 8,767,417'Dual switches flyback power converter with wide input voltage range'2014 8,749,999'Controller and power converter using the same for clamping maximum switching current of power converter'2014 8,742,677'LED drive circuit with a programmable input for LED lighting'2014 8,730,687'Switching controller with valley-lock switching and limited maximum frequency for quasi-resonant power converters'2014 8,729,828'Integrated circuit controller for ballast'2014 8,729,930'Successive approximation multiplier-divider for signal process and method for signal process'2014 8,710,813'Low drop-out regulator providing constant current and maximum voltage limit'2014 8,711,583'Single-stage PFC converter with constant voltage and constant current'2014 8,698,474'Start-up circuit with low standby power loss for power converters'2014 8,670,248'Primary-side controlled power converter with an RC network and method thereof'2014 8,664,998'Adaptive filter circuit for sampling a reflected voltage of transformer in a power converter and method thereof'2014 8,659,916'Control circuit with ZVS-lock and asymmetrical PWM for resonant power converter'2014 8,654,546'Method and apparatus for controlling resonant power converter'2014 8,649,191'Synchronous rectifier having phase lock circuit coupled to feedback loop for resonant power converters'2014 8,643,297'Control circuit and control method for dimming LED lighting circuit'2014 8,605,462'Switching circuit for primary-side regulated resonant power converters'2013 8,593,833'Method and apparatus for a flyback power converter providing output voltage and current regulation without input capacitor'2013 8,587,964'Control circuit with burst mode and extended valley switching for quasi-resonant power converter'2013 8,576,595'Method and apparatus of providing a biased current limit for limiting maximum output power of power converters'2013 8,558,349'Integrated circuit for a high-side transistor driver'2013 8,559,196'Output voltage control circuit of power converter for light-load power saving'2013 8,531,210'Monolithic high-side switch control circuits'2013 8,525,554'High-side signal sensing circuit'2013 8,513,895'High efficiency LED driver with current source regulations'2013 8,488,338'Controller with valley switching and limited maximum frequency for quasi-resonant power converters'2013 8,482,268'Correction circuit of a switching-current sample for power converters in both CCM and DCM operation'2013 8,482,391'Wall control interface with phase modulation and detection for power management'2013 8,451,632'Dual-Switches flyback power converter with self-excited supply to power the high-side driver'2013 8,432,109'Method and apparatus for a LED driver with high power factor'2013 8,415,928'Power circuit'2013 8,400,095'Constant-speed control circuit for BLDC motors'2013 8,373,399'Control circuit of interleaved PFC power converter'2013 8,358,518'Switching regulator having terminal for feedback signal inputting and peak switching current programming'2013 8,331,114'Flyback power converters having a high side driving circuit'2012 8,269,432'Offline LED lighting circuit with dimming control'2012 8,242,754'Resonant power converter with half bridge and full bridge operations and method for control thereof'2012 8,199,541'High efficiency bridgeless PFC power converter'2012 8,179,700'Control circuit with adaptive minimum on time for power converters'2012 8,179,250'Power management interface'2012 8,154,153'Method and apparatus for providing a communication channel through an output cable of a power supply'2012 8,154,888'Offline synchronous rectifier circuit with turned-on arbiter and phase-lock for switching power converters'2012 8,134,302'Offline LED driving circuits'2012 8,102,133'Control circuit for BLDC motors'2012 8,094,468'Control circuit having off-time modulation to operate power converter at quasi-resonance and in continuous current mode'2012 8,089,791'Compensation circuit and compensation method for current mode power converters'2012 RE043015'Capacitive high-side switch driver for a power converter'2011 8,072,787'Synchronous rectifying for soft switching power converters'2011 8,049,448'Control circuit with dual programmable feedback loops for BLDC motors'2011 8,044,685'Floating driving circuit'2011 8,045,351'Method and apparatus of providing a biased current limit for limiting maximum output power of power converters'2011 8,023,289'Offline synchronous rectifier with causal circuit for resonant switching power converter'2011 RE042674'Control method and circuit with indirect input voltage detection by switching current slope detection'2011 8,004,862'Offline synchronous rectifying circuit with current transformer for soft switching power converters'2011 7,999,527'Switching controller having programmable feedback circuit for power converters'2011 7,995,358'Control circuit including adaptive bias for transformer voltage detection of a power converter'2011 7,990,739'Asymmetrical resonant power converters'2011 7,983,061'Switching controller capable of reducing acoustic noise for power converters'2011 7,974,108'Synchronous rectifying circuit for offline power converter'2011 7,965,528'Method and apparatus for measuring the switching current of power converter operated at continuous current mode'2011 7,944,721'Switching control circuit for multi-channels and multi-phases power converter operated at continuous current mode'2011 7,940,035'Control circuit having an impedance modulation controlling power converter for saving power'2011 7,936,087'Switching controller for parallel power converters'2011 7,928,758'Transistor gate driving circuit with power saving of power converter'2011 7,923,787'MOSFET with isolation structure and fabrication method thereof'2011 7,911,813'Offline synchronous rectifying circuit with sense transistor for resonant switching power converter'2011 7,903,440'Synchronous regulation circuit and method for providing synchronous regulation for power converters'2011 7,903,435'Switching controller having switching frequency hopping for power converter'2011 7,885,084'Control circuit for synchronous rectifying and soft switching of power converters'2011 7,881,076'Buck-boost PFC converters'2011 7,859,234'Switch circuit to control on/off of a high voltage source'2010 7,858,466'Different-voltage device manufactured by a CMOS compatible process and high-voltage device used in the different-voltage device'2010 7,855,899'Controller with loop impedance modulation for power converter'2010 7,847,365'MOSFET with isolation structure for monolithic integration and fabrication method thereof'2010 7,847,533'Apparatus providing protection for power converter'2010 7,812,552'Controller of LED lighting to control the maximum voltage of LEDS and the maximum voltage across current sources'2010 7,800,927'Method and circuit for providing compensations of current mode power converters'2010 7,800,923'Offline synchronous switching regulator'2010 7,796,407'Method and apparatus of providing synchronous regulation for offline power converter'2010 7,787,264'Apparatus to provide synchronous rectifying circuit for flyback power converters'2010 7,778,051'Output current control circuit for power converter with a changeable switching frequency'2010 7,764,516'Method and apparatus of providing synchronous regulation circuit for offline power converter'2010 7,764,098'Start up circuit of power converter'2010 7,760,478'Control circuit with short-circuit protection for current sense terminal of power converters'2010 7,755,296'Resonant inverter'2010 7,724,034'Floating driving circuit'2010 7,701,733'Method and apparatus to provide synchronous rectifying circuit for offline power converters'2010 7,701,734'Detection circuit to detect input voltage of transformer and detecting method for the same'2010 7,701,736'Synchronous rectifying circuit for resonant power converters'2010 7,671,578'Detection circuit for sensing the input voltage of transformer'2010 7,671,486'Switching controller having synchronous input for the synchronization of power converters'2010 7,663,352'Control circuit for measuring and regulating output current of CCM power converter'2010 7,660,136'Method and apparatus for synchronous rectifying of soft switching power converters'2010 7,656,685'Control method and circuit with indirect input voltage detection by switching current slope detection'2010 7,633,183'Switching controller for power sharing of parallel power supplies'2009 7,626,372'Control circuit for multi-phase, multi-channels PFC converter with variable switching frequency'2009 7,622,827'Switching controller for parallel power supply'2009 7,616,457'Synchronous regulation circuit'2009 7,616,461'Control method and circuit with indirect input voltage detection by switching current slope detection'2009 7,616,454'Control circuit having programmable waveform for limiting output power of power converter'2009 7,615,826'Electrostatic discharge protection semiconductor structure'2009 7,615,976'Switching circuit of power converter having voltage-clipping device to improve efficiency'2009 7,615,934'High efficiency resonant ballast'2009 7,602,160'Method and apparatus providing protection for power converter'2009 7,592,790'Start-up circuit with feedforward compensation for power converters'2009 7,592,793'Voltage regulator providing power from AC power source'2009 7,577,002'Frequency hopping control circuit for reducing EMI of power supplies'2009 7,573,251'AC-to-DC voltage regulator'2009 7,570,038'Control circuit to reduce reverse current of synchronous rectifier'2009 7,570,087'Switching drive circuit for soft switching'2009 7,564,705'Synchronous rectification circuit for power converters'2009 7,564,903'Method and apparatus for measuring reflected voltage of transformer'2009 7,561,447'Primary-side controlled switching regulator'2009 RE040844'High-side transistor driver for power converters'2009 7,557,516'Resonant inverter'2009 7,550,933'Offline control circuit of LED driver to control the maximum voltage and the maximum current of LEDs'2009 7,531,996'Low dropout regulator with wide input voltage range'2009 7,518,416'Method and apparatus for detecting switching current of magnetic device operated in continuous current mode'2009 D0590339'Controller with DC brushless motor'2009 7,511,466'Method and apparatus for predicting discharge time of magnetic device for power converter'2009 RE040656'Primary-side controlled flyback power converter'2009 7,498,788'Switching regulator having energy saving circuit'2009 7,492,613'Control circuit of power converter having adaptive bias for detecting reflected voltage of transformer'2009 7,489,529'Control circuit having frequency modulation to reduce EMI of power converters'2009 7,486,493'Over-power protection circuit for power converter'2009 7,486,528'Linear-predict sampling for measuring demagnetized voltage of transformer'2009 7,483,281'Multi-channel power converter with switching frequency modulation circuit for power saving'2009 7,471,523'Method and apparatus for detecting demagnetizing time of magnetic device'2008 7,471,121'Transistor drive circuit of power converter operating in a wide voltage range'2008 7,466,569'Power converter having phase lock circuit for quasi-resonant soft switching'2008 7,460,380'Highly efficient switching power converter using a charge pump to power the drive circuit'2008 7,443,702'High voltage start up circuit for power converters'2008 7,440,298'Synchronous rectification circuit for power converters'2008 7,436,126'Resonant ballast circuit'2008 7,426,120'Switching control circuit having a valley voltage detector to achieve soft switching for a resonant power converter'2008 7,417,287'Electrostatic discharge device having controllable trigger voltage'2008 7,414,865'Controller having output current control for a power converter'2008 7,405,595'High-side transistor driver having positive feedback for improving speed and power saving'2008 7,405,545'Voltage-regulator and power supply having current sharing circuit'2008 7,391,628'Switching controller having frequency hopping for power supplies and method therefor'2008 7,368,878'Current-mode resonant ballast'2008 7,365,997'Synchronous switching control circuit for power converters'2008 7,362,592'Switching control circuit for primary-side controlled power converters'2008 7,362,593'Switching control circuit having off-time modulation to improve efficiency of primary-side controlled power supply'2008 7,355,250'Electrostatic discharge device with controllable holding current'2008 7,352,595'Primary-side controlled switching regulator'2008 7,349,229'Causal sampling circuit for measuring reflected voltage and demagnetizing time of transformer'2008 7,313,004'Switching controller for resonant power converter'2007 7,310,251'Control circuit having two-level under voltage lockout threshold to improve the protection of power supply'2007 7,310,244'Primary side controlled switching regulator'2007 7,286,376'Soft-switching power converter having power saving circuit for light load operations'2007 7,285,837'Electrostatic discharge device integrated with pad'2007 7,286,123'LED driver circuit having temperature compensation'2007 7,274,251'Apparatus and method of current sharing'2007 7,259,972'Primary-side-control power converter having a switching controller using frequency hopping and voltage and current control loops'2007 7,259,525'High efficiency switching LED driver'2007 7,257,008'Start-up apparatus for power converters'2007 7,245,089'Switching LED driver'2007 7,245,090'Switching LED driver with temperature compensation to program LED current'2007 7,235,957'Power supply with current-sharing control and current-sharing method thereof'2007 7,236,376'Controller for regulating output current at the primary side of a power supply'2007 7,218,060'Flyback ballast for fluorescent lamp'2007 7,218,080'Soft-start apparatus for power supplies'2007 7,205,201'CMOS compatible process with different-voltage devices'2007 7,203,079'Switching controller having frequency hopping for power supplies'2007 7,184,283'Switching frequency jitter having output ripple cancel for power supplies'2007 7,173,835'Control circuit associated with saturable inductor operated as synchronous rectifier forward power converter'2007 7,151,681'Multiple-sampling circuit for measuring reflected voltage and discharge time of a transformer'2006 7,133,300'Over-voltage protection circuit for power converter'2006 7,116,090'Switching control circuit for discontinuous mode PFC converters'2006 7,116,565'Over-power protection apparatus for self-excited power converter'2006 7,102,194'High voltage and low on-resistance LDMOS transistor having radiation structure and isolation effect'2006 7,091,710'Low dropout voltage regulator providing adaptive compensation'2006 7,088,598'Power-mode control circuitry for power converters'2006 7,061,776'Half-bridge flyback power converter'2006 7,061,780'Switching control circuit with variable switching frequency for primary-side-controlled power converters'2006 7,061,225'Apparatus and method thereof for measuring output current from primary side of power converter'2006 7,057,440'Multiplier-divider circuit for a PFC controller'2006 7,054,170'Power-mode controlled power converter'2006 7,042,028'Electrostatic discharge device'2006 7,026,851'PWM controller having frequency jitter for power supplies'2006 7,016,204'Close-loop PWM controller for primary-side controlled power converters'2006 6,995,428'High voltage LDMOS transistor having an isolated structure'2006 6,995,991'PWM controller for synchronous rectifier of flyback power converter'2006 6,977,824'Control circuit for controlling output current at the primary side of a power converter'2005 6,967,851'Apparatus for reducing the power consumption of a PFC-PWM power converter'2005 6,954,367'Soft-switching power converter'2005 6,952,354'Single stage PFC power converter'2005 6,906,934'Integrated start-up circuit with reduced power consumption'2005 6,903,421'Isolated high-voltage LDMOS transistor having a split well structure'2005 6,903,536'PFC-PWM controller having interleaved switching'2005 6,900,623'Power supply having multi-vector error amplifier for power factor correction'2005 6,873,011'High voltage and low on-resistance LDMOS transistor having equalized capacitance'2005 6,862,194'Flyback power converter having a constant voltage and a constant current output under primary-side PWM control'2005 6,861,827'Low drop-out voltage regulator and an adaptive frequency compensation'2005 6,853,563'Primary-side controlled flyback power converter'2005 6,839,247'PFC-PWM controller having a power saving means'2005 6,836,415'Primary-side regulated pulse width modulation controller with improved load regulation'2004 6,836,173'High-side transistor driver for power converters'2004 6,812,769'Switched charge multiplier-divider'2004 6,781,422'Capacitive high-side switch driver for a power converter'2004 6,781,356'PWM controller having a modulator for saving power and reducing acoustic noise'2004 6,768,657'Current-driven PWM controller having a power saving means'2004 6,768,655'Discontinuous mode PFC controller having a power saving modulator and operation method thereof'2004 6,765,374'Low drop-out regulator and an pole-zero cancellation method for the same'2004 6,744,611'Over-voltage crowbar for lightning surge and ESD protection'2004 6,744,649'Zero switching power converter operable as asymmetrical full-bridge converter'2004 6,721,192'PWM controller regulating output voltage and output current in primary side'2004 6,674,656'PWM controller having a saw-limiter for output power limit without sensing input voltage'2004 6,661,679'PWM controller having adaptive off-time modulation for power saving'2003 6,611,439'PWM controller for controlling output power limit of a power supply'2003 6,597,159'Pulse width modulation controller having frequency modulation for power converter'2003 6,545,882'PWM controller having off-time modulation for power converter'2003 6,501,666'Method and apparatus for magnetic amplifier to reduce minimum load requirement'2002 6,418,002'Power supply supervisor having a line voltage detector'2002 6,353,405'Low distortion video analog-to-digital converter'2002 6,262,549'Fan speed pulse filter for a PWM fan'2001 6,185,082'Protection circuit for a boost power converter'2001 6,135,718'Interface apparatus for fan monitoring and control'2000 5,903,452'Adaptive slope compensator for current mode power converters'1999 4,766,328'Programmable pulse generator'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2017Patents assigned to SYSTEM GENERAL CORP (254)· patent assignee history

1988–2020Based in Taoyuan, TW· patent location history

2002–2020Based in Milpitas, CA, US· patent location history

2003–2017Based in Taipei, TW· patent location history

2008–2015Based in Taoyuan County, TW· patent location history

2011–2016Patents assigned to YANG TA-YUNG (60)· patent assignee history

2013–2015Patents assigned to LIN LI (10)· patent assignee history

2013–2015Based in Mulpitas, CA, US· patent location history

2017–2020Patents assigned to RICHTEK TECHNOLOGY CORP (15)· patent assignee history

2017–2019Patents assigned to SEMICONDUCTOR COMPONENTS IND LLC (10)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SYSTEM GENERAL CORP	254	1988–2017
YANG TA-YUNGself	60	2011–2016
RICHTEK TECHNOLOGY CORP	15	2017–2020
LIN LI	10	2013–2015
SEMICONDUCTOR COMPONENTS IND LLC	10	2017–2019

Locations

Location	Patents	Span
Milpitas, California, US	234	2002–2020
Taoyuan, TW	29	1988–2020
Taipei, TW	9	2003–2017
Mulpitas, California, US	5	2013–2015
Taoyuan County, TW	4	2008–2015