For further protection, a current- limiting resistor is placed at the bottom of the H- Bridge (the sources of M3 and M4). ... This should give ample voltage output for the frequency bandwidth of interest (0-5kHz). ... H-Bridge Output Circuit .
|Title||:||An efficient audio power amplifier design using a secon-order Sigma-Delta modulator|
|Author||:||Arpan K. Chakravarty|