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Nonlinear negative feedback logic protection emitter coupling type switch voltage stabilizing power source

A switching regulated power supply, logic protection technology, applied in electrical components, output power conversion devices, amplifiers with semiconductor devices/discharge tubes, etc., can solve problems such as large ripple coefficient, low efficiency, radio frequency interference, etc. Achieve the effect of increasing the carrying current, wide application range and reducing radio frequency interference

Inactive Publication Date: 2015-03-25
CHENGDU COPOO TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of large ripple coefficient, serious radio frequency interference, complex circuit and low efficiency existing in the current switch-type regulated power supply, and provide a logic-protected emitter-coupled switch regulated power supply with nonlinear negative feedback

Method used

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  • Nonlinear negative feedback logic protection emitter coupling type switch voltage stabilizing power source
  • Nonlinear negative feedback logic protection emitter coupling type switch voltage stabilizing power source

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Embodiment

[0022] Such as figure 1 As shown, the present invention includes a diode rectifier U, a power amplifier P1, a transformer T, a voltage comparator U1, a switch filter circuit, a power supply output circuit, a voltage transformation feedback circuit, a nonlinear negative feedback circuit, a current detection amplifier circuit, and a ramp wave generation device, slope compensator M, oscillator, sliding regulator and logic protection emitter-coupled amplifier circuit. Wherein, the transformer T is composed of a primary coil L1 disposed on the primary side, a secondary coil L2 disposed on the secondary side, and a secondary coil L3 disposed on the secondary side. In the present invention, a sliding tap is provided on the primary coil L1 of the transformer T, and the sliding tap is controlled by a sliding regulator to ensure that the present invention can automatically adjust the primary coil L1, the secondary coil L2 and the secondary coil of the transformer T. Turns ratio between...

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Abstract

The invention discloses a nonlinear negative feedback logic protection emitter coupling type switch voltage stabilizing power source which is mainly composed of a diode rectifier U, a power amplifier P1, a transformer T, a voltage comparator U1, a switch filter circuit connected between the positive electrode output end of the diode rectifier U and the in-phase end of the power amplifier P1 in series, a power source output circuit connected with a secondary side coil L2 of the transformer T, a voltage transformation feedback circuit connected with a secondary side coil L3 of the transformer T and the like. The nonlinear negative feedback logic protection emitter coupling type switch voltage stabilizing power source is characterized in that a logic protection emitter coupling type amplification circuit is further connected between the Q end of the voltage comparator U1 and the inversion-phase end of the power amplifier P1 in series. According to the nonlinear negative feedback logic protection emitter coupling type switch voltage stabilizing power source, a current detection amplifier circuit is used for achieving current detection, the current borne by a switch power source can be effectively increased, and the application range of the switch power source becomes wider.

Description

technical field [0001] The invention relates to a switch stabilized voltage power supply, in particular to a non-linear negative feedback logic protection emitter coupling switch stabilized voltage power supply. Background technique [0002] With the continuous advancement of science and technology, electronic products have brought great convenience to people's life while their functions are becoming more and more powerful. The voltage stabilizing circuit is easy to operate. The traditional series linear regulating voltage stabilizing circuit has the characteristics of high stability, adjustable output voltage, small ripple coefficient, and simple circuit. However, the adjustment tubes of these series linear adjustment type voltage stabilizing circuits always work in the amplified state, and current flows all the time, so the power consumption of the tubes is relatively large, and the efficiency of the circuit is not high, generally only reaching 30% to 50% %about. In orde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/217H03F3/20
CPCH02M3/33569H02M7/217H03F3/213
Inventor 高小英车容俊
Owner CHENGDU COPOO TECH
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