Class AB output circuit diode coupling

Posted on Mar 28, 2007

Class AB output stage circuit coupled diode shown in Figure 10-8. Static, adjust VT1 bias circuit (not shown), so that the output at point E on the ground DC voltage UE o. The

Click here to download the full size of the above Circuit.

forward voltage drop VD1 applied to the emitter of VT2 and VD2, make VT2 in micro conducting class AB operation. When the input signal U is positive half weeks. VT1 collector current increases, B and C point point-to-ground voltages are lowered. Point B so that the voltage drop emitter voltage VI2 and drop off, C point voltage drop makes VD2 fully on. then. RL, VD2, VT1 and - Ucc formed through path, the current flowing through RL Tuen bottom-up forms the output of the negative half cycle. Because RL Rt, so the collector signal current iCl- VT1/L. When the input signal U is negative half-cycle,/c decreases, B and C point voltage is increased. Thus, VT2 conduction and VD2 end, + Ucc, VT2 and shame to form a positive half cycle of the output signal. Thus, VD2 corresponds to a gate, gate open harmony by the input signal voltage of positive and negative half-cycle of a change in control. In the actual circuit. VT1 and VT2 - like all composite pipe.

Leave Comment

characters left:

New Circuits

Zero consumption Anti-theft High power Code Switch for E-Bike Batteries

This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
Ultrasonic distance finder circuit

The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Simple Metal detector circuit with CD4030

Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Fully automatic watering circuit for flower pots

Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
Simple deep searching metal detector circuit

The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
Sub-Harmonic Bass Converter for Electric Guitars

The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
Echo Depth Sounding Sonar for Boats

In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
100W HiFi Audio Amplifier Circuit

This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
Plant-Pot Water Level Indicator Circuit

A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....

Create NOW your QR MENU for your Restaurant / Hotel / Bar / Caffe,

Comprehensive ordering/paying features. fully personalized to suit your Business.

Update Anytime! Easy and Simple!

Popular Circuits

12 volt power supply (7812)

Please operate caution when building this power supply. It is run on standard 117 ac current -...

Large Lcd Display Buffering Driver Circuit

Large LCD devices of 1 or more exhibit a large driving capacitance to the driver circuits. To...

Traffic Lights Beginner Arduino Project

Setup the lights on the breadboard like a traffic light. Red on top, then yellow, and then green....

Music Bell with In / Out Indicator

A robot is an automatically guided machine, able to do task on its own. Another common...

Discrete PWM Generator Circuit

PWM waveforms are commonly used to control the speed of DC motors. The mark/space ratio of the...

Simple square wave generator

Typically square wave generators are based on symmetrical multivibrator with bipolar transistors...

Factory secondary low-voltage distribution electrical panel wiring diagram

BSL is shown in low-voltage distribution panel wiring diagram. It consists of three parts,...

OCL power amplifying circuit

Figure 1-30 is an example of an OCL power amplifier circuit, the following specific analysis: In...