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1sxx02cw
ACH10 Driver/relays board
That board co--operates with CB0 and realises following functions:
S driving transistors in chopper module
S monitoring of voltage across capacitors in chopper module
S driving cooling fan, water pump, and mains relay.
All function units are described below.
ACH10:1 Circuit diagram
ACH10:2 Power supply
Power supply unit provides two stabilized voltages:
+14V and --10V that supply PWM driver, voltage comparator and some of relays.
LED diodes V19, V18 indicate presence of AC17V and AC13V.
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