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
Digital broadcast receiver and method for processing caption thereof
Front end for RF transmitting-receiving systems with implicit directional control and time-multiplexing method in submicron technology
Mixture, especially spinning solution
Satellite mounting pole
Can seam inspection
Hot-press cushion material and manufacturing method of the same
Systems and methods for port mirroring with network-scoped connection-oriented sink
  Randomly Featured Patents
Data network drivers including balanced current supplies and related methods
Relay with multiple contacts
Compositions containing bioemulsifiers and a method for their preparation
Endoscopic suture system
High power dual band high gain antenna system and method of making the same
Method for making an internal combustion engine piston in thermostructural composite material
Drilling tool with rounded insert support surfaces
Spin-printing of electronic and display components
Process for the preparation of novel benzopyrane derivatives
Dielectric filter, dielectric duplexer, and communication apparatus