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Chapter 4 Theory of Operation
D-to-A Converter
D-to-A Converter
Referring to the schematic shown on page 129, all reference voltages of power circuits are derived from the internal voltage reference of system DAC U12 on the top board. The system DAC track/hold amplifier outputs are used to provide controllable reference voltages to three power circuits. The system DAC is programmed and responds to the main controller via internal
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