Inventor · disambiguated record
Po Wah Chang
Also filed as: CHANG PO WAH · CHANG PO WAH PATRICK
5 granted patents·54 citations·filing 2010–2014
79Inventor score
Top patents by PatentIndex Score
5 records- 0188US8780590B2Output current estimation for an isolated flyback converter with variable switching frequency control and duty cycle adjustment for both PWM and PFM modesSO WAI KIT VICTOR·Filed 2012·Granted Jul 15, 2014·22 cites·20 claims
- 0285US8300431B2Constant-current control module using inverter filter multiplier for off-line current-mode primary-side sense isolated flyback converterNG CHIK WAI DAVID·Filed 2010·Granted Oct 30, 2012·14 cites·20 claims
- 0373US9306461B2LED driver with small output ripple without requiring a high-voltage primary-side electrolytic capacitorHK APPLIED SCIENCE & TECH RES·Filed 2014·Granted Apr 5, 2016·4 cites·20 claims
- 0473US8188798B1Programmable electro-magnetic-interference (EMI) reduction with enhanced noise immunity and process toleranceLEUNG CHI TAK GERRY·Filed 2010·Granted May 29, 2012·7 cites·20 claims
- 0572US9385542B2Serial multi-battery charger with independent simultaneous charge and dischargeHK APPLIED SCIENCE & TECH RES·Filed 2014·Granted Jul 5, 2016·7 cites·12 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →