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Archives for September, 2010

Battery Charger Circuit Diagram with Piezo Ttransducer

Battery Charger Circuit Diagram using LM393, 4011B, 7806, 1N4001, BD140

USB charger battery

USB charger battery USB charger schematic diagram for li-on battery using LM3525, LM3622, DTA1432KA USB port is a great power source for charging a single cell li-on battery. … cell li-on battery charger. LM3525, LM3622, DTA1432KA is used as the controller.

STK4141 Class D Modules

STK4141 Class D Modules STK4141 Class D Modules circuit diagram STK4141 Class D Modules STK4141 Class D Modules

Class B audio amplifier – 2500W

Class B audio amplifier – 2500W using R 220 R 47k R 2k2 R 4k7 R 8k2 Tr C945, Tip 41, Tip 42, 2SC2922, 2SA1216 Audio amplifier – 2500W Layout – 2500W     schematic diagram

The AM Transmitter circuits

The AM Transmitter circuits in two and a half, audio amplifier and an RF oscillator. The oscillator is built around Q1 and associated components. Tank circuit L1 and VC1 is melodious from about 500kHz to 1600KHz.

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