Adjustable encoder role in the induction cooker

by:HENGXIANG     2020-11-05
To explore the effects of adjustable encoder in the induction cooker is to understand the working principle of adjustable encoder in induction cooker. The adjustable encoder in the induction cooker is mainly the IGBT work current into a voltage signal to the CPU, by the CPU voltage after processing, to control PWM signal amplitude, which automatically adjust the working current of IGBT tube, is to adjust the power of induction cooker. Transformer primary flow of alternating current in the secondary side induction out a variable voltage, the voltage to the four diode rectifier, and then after some resistance and induction cooker encoder adjustment to the CPU after partial pressure limiting current terminal, the CPU, comparing the detected voltage and set to automatically control the size of the output of the PWM signal, achieve the goal of automatic control IGBT tube working current. Some models of induction cooker in the adjustable encoder is to be used and connect the transformer secondary, adjustable amplitude after rectification for detecting voltage first. The adjustable encoder in the induction cooker is partial pressure value of the change, is to adjust the feedback voltage. So, we summarize the adjustable encoder in the role in the induction cooker is as follows: 1, the adjustable encoders can be used as a partial pressure in the induction cooker, induction cooker encoder is a continuous adjustable resistor, turn the handle of regulating encoder or sliding handle, the moving contact will slide on the resistor body, then can be obtained in the induction cooker encoder outputs and electromagnetism encoder Angle to the applied voltage and movable arm or trip into a certain percentage of the output voltage. 2, the adjustable encoder in the induction cooker can be used as a current controller: when electromagnetism encoder used as current controller, one of the selected current output must be sliding contact terminal. 3, the adjustable encoders can be used as a rheostat in the induction cooker, induction cooker encoder is used as the rheostat, should take the encoder into two end devices, within the scope of the encoder trip, so it can obtain a smooth, continuous variation of resistance. About the function and principle of induction cooker encoder, through the above understanding, this encoder with carbon membrane principle, characteristics and purpose and the role of double encoder and measuring method is somewhat similar, we clear?
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