AmplifierCircuits

This is a stereo amplifier circuit diagram. The amplifier will produce stereo output channel with the power audio output can reach up to 70W for each channel. The amplifier built based great amplifier chip STA550 from STMicroelectronics. Take a note that this amplifier is a bridge amplifier, the speaker`s terminal should not connected to the groun visit page.  70W Stereo Audio Amplifier

Circuit diagram for AN17850A: 70W x 1ch BTL Power Amplifier

Features: Maxim supply voltage: +Vcc: 55V Colector current: Icmax: 7 A Load Resistance: RL: 8 Ohm Circuit Diagram: 70W AF power amp STK086G

70W (6Ω) x 1ch BTL Power Amplifier Built-in Standby and Muting Features Incorporating Various Protection Circuits

FEATURES: Very high output power, operating from a single low  supply voltage Low power dissipation, when used for music signals Switches to low output power at too high case  temperatures Few external components Fixed gain Differential inputs with high common mode rejection Mode select pin (on, mute and standby) Status I/O pin (class-H, class-B and fast mute) All switching levels with hysteresis Diagnostic pin with information about: Dynamic Distortion Detector (DDD) Any short-circuit at outputs Open load detector Temperature protection. No switch-on or switch-off plops Fast mute on supply voltage drops Quick start option (e.g. car-telephony/navigation) Low (delta) offset voltage at the outputs Load dump protection Short-circuit safe to ground, supply voltage and across  the load Low power dissipation in any short-circuit condition Protected against electrostatic discharge Thermally protected Flexible leads. GENERAL DESCRIPTION: Th...