Voltage-to-current converter


Posted on Aug 22, 2012

The voltage-to-current converter in Figure 1 can both source and sink current. The circuit is more flexible than some traditional current references that require different topologies for current sourcing and sinking. Also, you can easily adjust the value of the current reference by simply adjusting the circuit`s input voltage.



You typically set R1 equal to R2. The output current is a function of R3 and the gain of the instrumentation amplifier. Note that capacitor C1 stabilizes the circuit. In this example, R3=10 M, and the instrumentation amplifier`s gain is uni




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Audio operated relay
110Db Beeper Circuit
L4970A Easy 5V 10A Switching Regulator circuit
Car audio amplifier
Wide Frequency Range 555 VCO
Valves structure operation and use
Vu meter stereo circuit
Amateur Radio
Telecard reader with AT90s2313 micro
Incandescent Yeonsu electronic controller 1
OP27 multiple S-type thermocouple circuit



Top