Dynamic power management circuit for controlling supply power of current type digital-to-analog converter
A technology of dynamic power management and digital-to-analog converters, applied in the field of integrated circuits, can solve problems such as waste of power supply voltage and achieve the effect of power minimization
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[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0038] When the output dynamic range of the current-mode digital-to-analog converter is wide, the corresponding voltage variation range on the resistive load will also be relatively large, and the change of the load resistance will increase the variation range again. Therefore, in order to improve the waste of power consumption under the current mode, the present invention adopts the method of comparing the output voltage with the supply voltage and controlling the boosting process, according to the output demand, controlling the DC-DC conversion circuit to output the variable power supply as the current conversion output circuit powered by.
[0039] Such as figure 1 As shown, the present invention provides a dynamic power management circuit for controlling the power supply of a current-mode digital-to-analog converter, including a drive cir...
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