| 摘要 |
PURPOSE: A transconductor is provided to apply a 3.3V servo and a 5V servo simultaneously by using an amplifier and a resistance. CONSTITUTION: An amplifier(40) receives first and second control voltages, and a standard voltage. The output end is electrically connected to the output end of a voltage amplifier(41) through a resistance(R). The voltage amplifier(41) receives a standard voltage. A current outputting section(45) is electrically connected to the voltage amplifier(41) so that the current which is flowed through a first resistance can be outputted.
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