Showing posts with label 70W. Show all posts
Showing posts with label 70W. Show all posts

12/02/2014

70W Stereo Audio Amplifier

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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
 70W Stereo Audio Amplifier

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11/03/2014

70W x 1ch BTL Power Amplifier

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

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10/20/2014

70W AF power amp STK086G

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Features:


  • Maxim supply voltage: +Vcc: 55V
  • Colector current: Icmax: 7 A
  • Load Resistance: RL: 8 Ohm


Circuit Diagram:
70W AF power amp STK086G
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9/10/2014

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

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

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7/30/2014

70 W power amplifier circuit

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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:

The TDA1562Q is a monolithic integrated 70 W/4 Ω Bridge-Tied Load (BTL) class-H high efficiency power amplifier in a 17-lead DIL-bent-SIL plastic power package. The device can be used for car audio systems (e.g. car, radio and boosters) as well as mains fed applications (e.g.midi/mini audio combinations and TV sound).

Circuit Diagram:
Circuit diagram 70 W power amplifier circuit

Datasheet for TDA1562Q: Download
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