Integrator of power supply by AC power supply in switch condenser circuit

Abstract

This invention is the integrating device supplied by AC power in the condenser network. The characteristics are: it series connects a switch that opens as the sampling phase and closes as the integrating phase at the output end of the amplifier in the traditional integrating device of AC power supply switch; and meanwhile synchronize the integrating clock signals when the sampling and integrating phases of the amplifier and make the same width of the pulses of the AC power supply signal as the power input, and maintain the same state switching time and minimize the time when the low energy saving state in the sampling phase and when the normal working state in the integrating phase. Because it closes the amplifier in the sampling phase, so compared with the switch condenser network supplied by DC power it has the superiority of low power consumption.

Description

technical field [0001] The technical field of direct application of the integrator powered by AC power in the switched capacitor circuit is low power consumption analog circuit and mixed signal circuit design using switched capacitor circuit technology. The proposed circuit is a basic switched-capacitor circuit unit for designing low-power analog and mixed-signal circuits. Background technique [0002] With the advancement of the manufacturing process of integrated circuits, the scale and design complexity of integrated circuits are increasing day by day, and the power consumption and heat dissipation of integrated circuits are also getting more and more attention. Especially under the current design idea of ​​integrated circuit SOC (System-On-a-Chip) and design style based on reusable IP cores (Reusable Intellectual Property Cores), more and more analog circuit modules and digital circuit modules are integrated into the same In a system, the power consumption of analog cir...

AI Technical Summary

Problems solved by technology

For digital circuit modules, reducing the working power supply voltage of the circuit is a very effective way to reduce circuit power consumption, but for analog circuit modules, this method will reduce the performance of analog circuits such as signal-to-noise ratio (SNR: Signal-to-NoiseRatio) deterioration

At present, there is no unified low-power design method for reducing the power consumption of digital circuit modules and analog circuit modules; Minimize the power consumption of the circuit

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