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Inventor

Hongfeng An

Inventor
Hangzhou, CN

Overview

4→
Patents
2015–2017
Patent span
Electricity
Primary field (CPC H)

Patents· 4 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 systems29%
H05BElectric heating29%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications29%
G01RMeasuring electric variables14%
PatentTitleYear
9,742,302'Zero-crossing detection circuit and switching power supply thereof'20179,698,693'Control circuit, control method and switch-type converter'20179,351,362'Dimming circuit and method for LEDs'20169,089,026'Dimming circuit and method for LEDS'2015

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015–2017Patents assigned to SILERGY SEMICONDUCTOR TECHNOLOGY HANGZHOU LTD (4)· patent assignee history
2015–2017Based in Hangzhou, CN· patent location history
2017Based in Zhejiang Province, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SILERGY SEMICONDUCTOR TECHNOLOGY HANGZHOU LTD42015–2017
Locations
LocationPatentsSpan
Hangzhou, CN32015–2017
Zhejiang Province, CN12017