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Switching Power Supply in this article are able to supply power 90 Watt. Switching Power Supply series is built directly from an AC network system using special IC MC33374 switching power supply in the form of High Voltage Power Switching Regulator and with external components to the other. IC MC33374 IC is a switching power supply designed to operate with an AC voltage source and works as a power switching converter with flyback technique. Switching Power Supply Series has a 15 volt DC output with current up to 6 Ampere. 90 Watt Switching Power Supply Schematic Series 90 Watt Switching Power Supply works by menyearahkan AC source is then used to activate the converter MC33374 system. The output of transformer switching converter MC33374 searahkan again later on as a DC voltage supply to be used for electronic devices.

Using only four transistors in the quasi-complementary amplifier configuration, this transistor power amplifier circuit can deliver 90W of power into 4 ohm loads and at low cost. As shown in the transistor power amplifier circuit there are no expensive components in this circuit, except the power transformers and speakers. As shown in the diagram there are no expensive components in this circuit, except the power transformers and speakers. Input stage is formed by this two current driver directly raised a pair of transistors of the output stage. Transistor level end (2N3055) mounted on a heat sink to keep the lifetime of these devices. Supported by one source (of 80Vcc) at the output of the final stage, before the speaker, a capacitor is placed to block DC current, and just skip the audio signal. The power supply circuit 90 W audio power amplifier must be sufficient to provide current 1.5A per channel audio. Thus the power required to operate the stereo 3A and 6A is required for the fo...