Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Voltage detection type overcurrent protection device for class-D amplifier










Image Number 7 for United States Patent #7701287.

The present invention discloses a voltage detection type overcurrent protection device, which applies to the output stage of a CMOS Class-D audio amplifier. Generally, a Class-D audio amplifier is used to drive a high-load loudspeaker; therefore, it needs a high-current driver. When there is a short circuit in the load, the high current will burn out the driver stage. The present invention detects the output voltage to indirectly monitor whether the output current is too large. Once an overcurrent is detected, the output-stage transistor is turned off to stop high current lest the circuit be burned out.








 
 
  Recently Added Patents
Evaluating programmer efficiency in maintaining software systems
Projection illumination system for EUV microlithography
Sweetener compositions having enhanced sweetness and improved temporal and/or flavor profiles
Push button
Wall flow type exhaust gas purification filter
Lead with lead stiffener for implantable electrical stimulation systems and methods of making and using
Cooler
  Randomly Featured Patents
Hydrostatic two-circuit steering arrangement
Recording medium container
High-voltage oscillator having a fast response time
Image processing system and method thereof
Optical disc player with focus control during search mode
Method of making a fluorescent lamp
Brassiere with interior pockets
Hedge trimmer
Vacuum cleaner
Spinal interbody spacer