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恒流源的特点是输出电流不随负载阻值的大小而改变。压控恒流源是一种利用外加控制电压的大小来控制输出电流的恒流源。这种电源应用很广,尤其是用于许多对工作电流有严格要求的场合。如微波通讯设备中的雪崩管放大器的电源;在某些新式的雷达及侦察用的扫频接收机中,往往采用具有连续扫频特性的YIG本振,许多仪器仪表中也用到YIG振荡器及滤波器,这种YIG器件就需要为它提供合适的恒流源,有时要用到锯齿波恒流源。通过对
Constant current source is characterized by the output current does not vary with the size of the load resistance. The voltage controlled constant current source is a kind of constant current source that uses the size of the external control voltage to control the output current. This power supply is widely used, especially for many occasions that have strict requirements on the operating current. Such as the power supply of avalanche tube amplifier in the microwave communication equipment; In some new-style radar and reconnaissance swept frequency receiver, YIG local oscillator that has continuous sweep characteristic often, YIG oscillator is also used in many instruments And filters, this YIG device needs to provide it with a suitable constant current source, sometimes using a sawtooth wave constant current source. Pass right