Resources Contact Us Home
System and method of altering a PWM carrier power spectrum

Image Number 16 for United States Patent #7598895.

In a particular embodiment, a circuit device includes an input to receive a pulse-width modulated (PWM) signal and an output to send a modulated PWM signal. The circuit device further includes a pulse edge control circuit coupled between the input and the output. The pulse edge control circuit receives the PWM signal via the input and includes a control input to receive a modulation control signal. The pulse edge control circuit is adapted to modify the PWM signal to provide the modulated PWM signal with suppressed carrier power and associated harmonics to the output based on the modulation control signal. The circuit device further includes a modulation sequence controller adapted to provide the modulation control signal via the control input. The modulation control signal selectively controls a sequence of the modification of the PWM signal to selectively alter an output power spectrum of the modulated PWM signal.

  Recently Added Patents
Haworthia plant named `CAPETOWN`
High performance actuator motor
SONOS stack with split nitride memory layer
Dithering method and apparatus
Resuming piecewise calibration of a real-time-clock unit after a measured offset that begins at the next calibration period
Navigation device, navigation method, and navigation program
  Randomly Featured Patents
Measurement of airway calibre
Dental handpiece having own electrical light source
Methods for creating assemblies and disassembling
Method of forming a plastic plate
Child booster with spillproof tray
Toy ball apparatus
Multi-chute gravity feed dispenser display
Thermoformable silicone resin coating composition and dual component coating system for polycarbonate
Dental prop, throat dam and retractor
Dress shield article