11 ·4 GENERAL ELECTRIC POWER SUPPLIES The logic system operates on d-e voltages, and the 115 volts a-c must be converted to those appropriate voltage levels. The logic-element power supply (LEPS) (Fig. 11·38) converts filtered 115 volts a-c to 12 volts and 125 volts d-e. Zero volts, P+, and -12 volts, P-, are the basic […]
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