Resources Contact Us Home
PWM clock generation system and method to improve transient response of a voltage regulator

Image Number 5 for United States Patent #8148967.

A pulse control clock generator for a voltage regulator including a comparator, a window circuit, a filter circuit, a ramp circuit, and a current circuit. The comparator compares a ramp voltage with a compensation voltage and provides a corresponding pulse control signal. The compensation voltage is indicative of output voltage error. The window circuit adds a window voltage to the compensation voltage to provide a hysteretic voltage. The filter circuit filters the hysteretic voltage to provide a filtered hysteretic voltage, such that a difference between the compensation voltage and the filtered hysteretic voltage is reduced in response to a load increase. The ramp circuit provides a repetitive ramp voltage which ramps between the filtered hysteretic voltage and the compensation voltage based on the pulse control signal. The current circuit increases a slope of the ramp voltage in response to the load increase.

  Recently Added Patents
Bicycle carrier
Automated difference recognition between speaking sounds and music
Methods and systems for creating a tail risk hedge index and trading derivative products based thereon
Method for producing SOI substrate and SOI substrate
System and method of verification of analog circuits
Image forming apparatus, control method, and storage medium
Isolated SCR ESD device
  Randomly Featured Patents
Quartz tank for wet semiconductor wafer processing
Handle for a container
Wall-mounted hinged clothes rack
Determination of IR-free voltage in hybrid vehicle applications
Miniature rose plant named `JACdandy`
Event-activated toy
Shape memory polymeric stent
Collapsible crane backhitch and overload signal system
Fuse apparatus and method
Support structure for vacuum duct