STEREO TO MONO circuit, DRIVER bridge a stereo power amp to mono USING C828
the BTL power amplifier system is: “Two power amplifier units connected by bridge joints can form a larger power amplifier. The amplifier system is in English called Budge Transformer Less BTL. This amplifier system can amplify the amplifier noise by about 2.8 times from before. The phase inverting circuit of the picture above will work well when between point Y and Rm there is a current of 2.55 mA.Rm above can be adjusted to the state of voltage.
To assemble two power amplifiers into one more loudly amplified amp-lifier unit, we need a phase inverting circuit as follows:
usually the above circuit is used for the circuit power amplifier OTL system which rangkaianya using power supply + and ground.For BTL the OCL amplifier using a symmetrical power supply alias (+, – and ground) can use a series of BTL which is already in the market