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Optical coupler power sampling and voltage regulation circuit for integrated power supply

A technology of power supply sampling and voltage stabilization circuit, which is applied in the direction of conversion equipment without intermediate conversion to AC, can solve the problems of low efficiency of low drop voltage regulator, affecting working performance, damage to itself and surrounding circuits, etc., and achieves a high safety factor. , the effect of simple structure

Inactive Publication Date: 2015-04-29
成都昊地科技有限责任公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, when the difference between the power supply voltage and the load voltage is large, the efficiency of the low-dropout voltage regulator is generally low, and it is easy to generate heat due to large power consumption, which will affect its working performance and even cause damage to itself and its surrounding circuits.

Method used

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  • Optical coupler power sampling and voltage regulation circuit for integrated power supply

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing:

[0013] Such as figure 1 As shown, the present invention includes a first inductor L1, a second inductor L2, a third inductor L3, a fourth inductor L4, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, and a fifth resistor R5 , sixth resistor R6, seventh resistor R7, eighth resistor R8, ninth resistor R9, first capacitor C1, second capacitor C2, third capacitor C3, fourth capacitor C4, fifth capacitor C5, sixth capacitor C6 , the seventh capacitor C7, the eighth capacitor C8, the ninth capacitor C9, the tenth capacitor C10, the first diode D1, the second diode D2, the third diode D3, the fourth diode D4, the Five diodes D5, comparator IC1 and linear optocoupler S1, the first inductor L1 is connected between the positive input terminal a1 of the power supply and the negative input terminal b1 of the power supply, one end of the second indu...

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Abstract

The invention discloses an optical coupler power sampling and voltage regulation circuit for an integrated power supply. The circuit comprises a first inductor, a second inductor, a third inductor, a fourth inductor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a comparator and a linear optical coupler. According to the circuit, after the voltage of an auxiliary winding is rectified and regulated, the linear optical coupler is adopted for changing an input error of the comparator to fulfill the aim of voltage regulation, and the circuit is simple in structure and high in safety coefficient.

Description

technical field [0001] The invention relates to a current sampling device, in particular to an optocoupler power sampling and voltage stabilizing circuit for an integrated power supply. Background technique [0002] The integrated power supply is based on the DC power supply, a combination of DC power supply and any kind of power supply or more than one kind of power supply, DC power supply, AC uninterruptible power supply (UPS) for electric power and inverter power supply (INV) for electric power, The DC conversion power supply (DC / DC) and other devices for communication are combined into one, the battery pack sharing the DC power supply, and the complete set of equipment for unified monitoring requires the use of a voltage stabilizer to achieve a stable output voltage. Many existing voltage regulators are low-dropout regulators, which are small in package size and low in design cost. However, when the difference between the power supply voltage and the load voltage is lar...

Claims

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Application Information

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IPC IPC(8): H02M3/04
CPCH02M3/04
Inventor 靖新宇
Owner 成都昊地科技有限责任公司
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