Inventor
CHU CHU YU
TW7 patents
Patents
7 patentsUS7446621B2Nov 4, 2008
Circuit and method for switching PFM and PWM
ADVANCED ANALOG TECHNOLOGY INC8 citations71
US7471117B2Dec 30, 2008
Circuit for detecting maximal frequency of pulse frequency modulation and method thereof
ADVANCED ANALOG TECHNOLOGY INC2 citations60
US7495499B2Feb 24, 2009
Power transistor circuit and the method thereof
ADVANCED ANALOG TECHNOLOGY INC4 citations58
US7551008B2Jun 23, 2009
Circuit for fixing peak current of an inductor and method thereof
ADVANCED ANALOG TECHNOLOGY INC0 citations50
US7456622B2Nov 25, 2008
Circuit for starting up a synchronous step-up DC/DC converter and the method thereof
ADVANCED ANALOG TECHNOLOGY INC0 citations50
US7501908B2Mar 10, 2009
Oscillation circuit having current scaling relationship and the method for using the same
ADVANCED ANALOG TECHNOLOGY INC0 citations39
US7245114B2Jul 17, 2007
DC-to-DC step-up converter and conversion method thereof
ADVANCED ANALOG TECHNOLOGY INC1 citations36