OCL power amplifying circuit

Posted on Dec 11, 2010

Figure 1-30 is an example of an OCL power amplifier circuit, the following specific analysis: In Figure 1-30, VTi, VTz form a single-ended input and differential input single-e

OCL power amplifying circuit
Click here to download the full size of the above Circuit.

nded output amplifier circuit. Signal from the input pole base VTi, VTi from the mother VT3 collector output level to promote, it is by a PNP transistor consisting of a total of hair emitter amplifier circuit, where the use of the PNP and pre-conjugated to the NPN tube adapter, easy midpoint voltage of dying oVT4, VTs and VT6, VT7 composition of the composite quasi-complementary class AB push-pull power output stage. f) 1, f compliance with the islands push-pull output stage quiescent bias circuit, the output stage in class AB, the island can adjust its operating point adjustment. R: r is negative feedback resistor for adjusting the gain of the circuit and the static stability midpoint voltage VD. Machine with a V + and V two symmetrical power, the output signal symmetry. Shown in Figure 1-30, in the positive half cycle of the input signal, the output signal is positive half cycle o At this time, VT4, VTs lead pass, VT6, VT7 off. As long as the input signal is strong enough, you can make when you enter a positive signal peak, VTs approaching saturation and the region, which pressure drop is V mouth. If the signal is ignored Rl4 drop on the output signal of the positive peak voltage v + a 1vais :: : V ~ Similarly, when the input signals negative peak, negative peak output signal voltage is aiming V V ten V a. Therefore, the circuit output voltage distortion maximum peak value of 2V. If the input signal is sinusoidal crossing, the maximum does not lose the power Ponr-ax y + 2/2RLo In this case, the power source output as compared to PE V + 2/rRLo the two values, in order to calculate the efficiency of the circuit Kun 78.5%.

Leave Comment

characters left:

New Circuits



Popular Circuits

807 and 1625 Valves as power amplifiers
Car warning lights circuit
The CDMS II Veto Readout Electronics
power supply Transistor current limiter microcontroller controlled
us style siren
1kH Synthetic Inductor
mains operated led night lamp
More on the plant sensor