| 摘要 |
An electrical system for supplying a DC voltage regulated to a desired level to a DC load is provided, wherein power is obtained from an AC waveform that under some conditions has a peak value below the desired level of eth DCC voltage. The AC waveform is connected to the AC load through a first solid state switch, wherein the magnitude of the DC voltage is controlled by a second solid state switch. Monitoring and control circuitry is provided to ensure that the first solid state switch is not turned off unless the second solid state switch is turned on. As a result, the electrical system may produce a nominal 12 volts DC output of sufficient current to desirably operate a multifunction gauge which otherwise might operate at varying voltage levels based on engine rpm variations.
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