A constant current source of the differential amplifier circuit


Posted on Mar 28, 2007

A constant current source of the differential amplifier circuit (2) having a constant current source of the differential amplifier with emitter resistor in differential amplifi


A constant current source of the differential amplifier circuit
Click here to download the full size of the above Circuit.

er, where larger, a Ua also increases, which is not appropriate. In order to make every time increases, Ucc can be lower, triode available, this circuit is called a constant current source transistor of the differential amplifier, as shown in FIG. Figure, s, played a role in the partial pressure for VT3 base provides a bias voltage to work in the enlarged state. How it works: When the potential of the rise, Si, Si increases, the voltage across I * 3Re should be increased, but remained unchanged Gong, forcing U. Decreases, so that the island is reduced, causing reduced Si, such as the rise is suppressed to maintain the constant 3, and this is the role of the constant current source of the transistor VT3. Si unchanged, Si suppressed, as can not be increased, so as to suppress the zero drift.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

6 x 6 Loop Antenna
Mosfet 75W Power Amplifier
Audio Oscillator
IR Remote Control Repeater
Tube Preamplifier 5687 Led Biased
ISL6185 USB power controller circuit design
Evergreen Exciter for the Special Night
Magneto Coil Points Headlamp Horn wiring diagram
43925 MHz ATV DOWNCONVERTER
A multi-channel pulse distributor circuit



Top