HA

Hongfeng An

S( Silergy Semiconductor Technology (Hangzhou): 4 patents #61 of 207Top 30%
Overall (All Time): #1,196,559 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9742302 Zero-crossing detection circuit and switching power supply thereof Chaoyao Xue 2017-08-22
9698693 Control circuit, control method and switch-type converter 2017-07-04
9351362 Dimming circuit and method for LEDs Feng Yu 2016-05-24
9089026 Dimming circuit and method for LEDS Feng Yu 2015-07-21