High-efficiency charge pump stabilized voltage supply device for buffer driving

Abstract

The invention discloses a temperature compensation type logic amplification and voltage stabilization power supply device. The device is mainly composed of a direct-current power supply S, a control circuit connected with the direct-current power supply S, a temperature compensation circuit connected with the control circuit and a light dependent resistor CDS connected with the temperature compensation circuit. The device is characterized in that a voltage stabilization circuit is further arranged between the temperature compensation circuit and the light dependent resistor CDS; meanwhile, a light beam excitation type logic amplification circuit is connected between the direct-current power supply S and the light dependent resistor CDS in series. An output current value can be automatically adjusted according to the temperature change of external environment, signals amplified by a power amplification circuit cannot be attenuated greatly, and therefore it can be ensured that the quality and performance of the amplified signals are more stable, and radio-frequency interference of the circuits and the outside is effectively lowered.

Description

technical field [0001] The invention relates to a power supply device, in particular to a high-efficiency charge pump stabilized voltage supply device for buffer driving. Background technique [0002] At present, battery manufacturers generally need to use a bipolar power supply to detect whether the functions of the battery protection circuit board have reached the standard after making the battery protection circuit board. Quick calibration and testing of overvoltage, undervoltage and overcurrent, and widely used power amplifier circuits. The so-called bipolar power supply means that when the power supply is discharged, the current inside the power supply flows from the negative pole to the positive pole, and when the power supply is charged, the current inside the power supply flows from the positive pole to the negative pole (the internal current of the traditional common power supply no matter whether it is In any case, it can only flow from the negative pole to the po...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the fact that the current bipolar power supply is easily affected by the external environment temperature, and after the traditional power amplifier circuit performs power drive amplification, the attenuation of the amplified signal is relatively large, and it will also be subject to external electromagnetic interference , which in turn makes the performance of the amplified signal relatively unstable, making its power supply performance extremely unstable, and provides a high-efficiency charge pump regulated power supply device for buffer driving.

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