1. Constant Ic/Id but not constant Vce/Vds
Bridge rectifier + constant current circuit is a bi-directional constant current source.
2. Constant Ic/Id and constant Vce/Vds
Bridge rectifier + JFET also is a bi-directional constant current source.
The Vicomm of OP07 is Vee+2 ~ Vcc-1.5,So the bridge rectifier circuit on the right produces 1.4 and 4V voltage drops, in order to match the Vicomm range of the OP07.
The C1,C3,R2,R4 is the oscillation compensation circuit.
Bridge rectifier + constant current circuit is a bi-directional constant current source.
2. Constant Ic/Id and constant Vce/Vds
Bridge rectifier + JFET also is a bi-directional constant current source.
The Vicomm of OP07 is Vee+2 ~ Vcc-1.5,So the bridge rectifier circuit on the right produces 1.4 and 4V voltage drops, in order to match the Vicomm range of the OP07.
The C1,C3,R2,R4 is the oscillation compensation circuit.
