| 摘要 |
#CMT# #/CMT# The converter has a filter connected with an input of an amplification circuit that receives an output signal from the filter and generates a common amplified reference signal. A separating circuit receives the amplified signal and isolates the amplified signal against interfering signal. A variable resistor (R7) is connected with an output of an opto-coupler (32) of the separating circuit for adjusting an optimal resistance value for voltage dividing together with a resistor that is connected with an input of the opto-coupler. #CMT#USE : #/CMT# Used for controlling a signal of an electronic product. #CMT#ADVANTAGE : #/CMT# The variable resistor is connected with the output of the opto-coupler for adjusting the optimal resistance value for voltage dividing together with the resistor that is connected with the input of the opto-coupler, thus effectively isolating control signal and the voltage signal, and hence avoiding influence of the control signal to control output of the converter, and avoiding disturbances concerning the analog signal of the converter. The converter can have a simplified circuit layout with a compact size. The converter can be produced at low-cost, and can provide a voltage signal, power signal and high current signal. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a circuit diagram of a converter. R7 : Variable resistor 1 : Filter 2 : Amplification circuit 3 : Separating circuit 32 : Opto-coupler. |
