Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Zhu; YaJiang
Address:
Shanghai, CN
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
8587968 Control circuits and methods for switching mode power supplies November 19, 2013
A switching mode power supply (SMPS) includes a transformer having a primary winding, a secondary winding for providing an output voltage, and an auxiliary winding. The SMPS also includes a power switch coupled to the primary winding. A first control circuit is coupled to the secondary
8125799 Control circuits and methods for switching mode power supplies February 28, 2012
Circuits and method for sensing a system output voltage change and transmitting an electrical signal to an auxiliary winding on the primary side. In an embodiment, a primary side controller detects the electrical signal and turns a power switch on and off to transfer energy from a pr
8064231 Short circuit protection circuit for a pulse width modulation (PWM) unit November 22, 2011
A short circuit protection circuit for a pulse width modulation (PWM) unit which includes a PWM logic control circuit, an under voltage lookout (UVLO) circuit and an internal clock circuit; wherein the UVLO circuit detecting a bias power (Vcc) and delivering an UVLO signal when the bias
8045348 Switching mode power supply controller with high voltage startup circuits October 25, 2011
A controller for a switching mode power supply includes two semiconductor chips. The first semiconductor chip has a high-voltage startup transistor coupled to a high voltage supply input terminal and configured to provide a charging current in a startup phase or protection mode of a swit










 
 
  Recently Added Patents
Position and orientation measurement apparatus, position and orientation measurement method, and storage medium
Transcription factor
Web development environment that enables a developer to interact with run-time output presentation of a page
Non-phosphorus-based gellant for hydrocarbon fluids
Method of predicting a motion vector for a current block in a current picture
Anti-infective agents and uses thereof
Topology arrangement for achieving reliable communication in wireless automotive networks
  Randomly Featured Patents
Electrical connector for a portable radio
Pleating needle
Enhanced companion digital organizer for a cellular phone device
Split word line ferroelectric memory
Filament fastening system tag
Power dissipation limiter for high frequency switch
Hydrogen storage device for avoiding powder dispersion
Gas-filled microspheres with fluorine-containing shells
RF personnel dosimeter and dosimetry method for use therewith
Method for fabricating a multilayer epitaxial structure