Free Simple Circuit Diagram
This is a The Push Pull Power Amplifier circuit. This circuit is a class B push pull amplifier. When there is no signal input, the TR3 and TR2 are not conducting. If there is no signal input, this circuit draw a very little current. This circuit has a phase splitter that is built from T1 and TR1 which opposite polarity […]
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As far as AC is concerned, the base is connected to the ground by the C3. Therefore, both input and output are connected to the base (common base amplifier). The magnitude of the current gain is less than 1 since Ic/Ie. Since it is Rc/Re, the voltage gain is high (approximately the same current flows through them) and it’s typically […]
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The transistor is biased in class A. That’s mean the collector current flows all the time. This current can increase or decrease, caused by the input signal which increases and decreases the forward bias. This increasing or decreasing depends on the input signal, but never stop, even in the lowest level of input (the lower peak of the waveform). These […]
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Zener diode has been commonly used as signal limiter. With a single diode and a resistor, the limiter will limit the half cycle of a signal to it’s forward bias and and the other half cycle to its reverse breakdown voltage. Using two back-to-back Zener diodes, the limiter will now limit full cycle symmetrically. In audio application, limiting an audio […]
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