EXPLATION FOR MICOM CIRCUIT
1. Explanation for PWB circuit
1-1. Power circuit
The power circuit includes a Switched Mode Power Supply (SMPS). It consists of a rectifier (BD1 and CE1) converting AC to DC, a switch (IC2) switching the DC voltage, a transformer, and a feedback circuit (IC3 and IC4).
Caution : Since high voltage (310 Vdc) is maintained at the power terminal, wait at least 3 minutes after unplugging the appliance to check the voltages to allow the current to dissipate.
Voltage of every part is as follows:
Part | VA1 | CE1 | CE2 | CE3 | CE4 | CE5 |
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Voltage | 230 Vac | 310 Vdc | 16 Vdc | 12 Vdc | 16 Vdc | 5 Vdc |
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