Intelligent charger

A power supply, intelligent technology, applied in the direction of electrical components, output power conversion devices, conversion equipment that can be converted to DC without intermediate conversion, etc., can solve the problems of high cost ratio and high noise, and achieve low cost and no cost. The effect of waveform distortion and wide voltage regulation range

Inactive Publication Date: 2009-05-27
江苏西贝电子网络有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

The latter adopts a high-performance magnetic saturation transformer, which has automatic voltage stabilization function, wide voltage stabili

Method used

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  • Intelligent charger

Examples

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[0009] As shown in Figure 1, there are multiple sets of taps at the primary end of the transformer Tr. The power input terminal is connected to the multiple sets of taps via a number of parallel connected triacs. The control poles of each triac VT are connected to the Several output pins of the single-chip microcomputer are connected in one-to-one correspondence; a voltage sampling circuit is connected across the two poles of the power input end, the voltage sampling circuit transmits the sampling signal to the voltage detection circuit, and the voltage detection circuit passes the detected voltage signal through the A / D converter Converted into a digital signal and transmitted to the single-chip microcomputer, the single-chip computer gives a control signal to the control pole of the corresponding triac VT after calculation, controls the corresponding triac VT to conduct, and changes the effective number of turns on the primary side of the transformer to make the transformer The ...

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Abstract

The invention discloses an intelligent power supply in the field of power supply. The original edge of a transformer is provided with a plurality of sets of suckers; the input end of the power supply is correspondingly connected with a plurality of the suckers through a plurality of bidirectional controlled silicons in parallel connection; the control electrode of each bidirectional controlled silicon is correspondingly connected with a plurality of output pins of a singlechip; a voltage sampling circuit is traversed between two electrodes of the input end of the power supply; after a sampling signal is transmitted to a voltage detection circuit through the voltage sampling circuit, is detected, is converted into a digital signal through an A/D convertor; the digital signal is transmitted to the singlechip and is calculated through the singlechip to give a control signal for the corresponding control electrode of the bidirectional controlled silicon so as to control the conduction of the corresponding bidirectional controlled silicon and change the effective turn number of the primary side of the transformer in order that the secondary side of the transformer outputs stable voltage; and the secondary side of the transformer is connected with the output end of a power inserter. The intelligent power supply can be used as the power supply of a cable television network and has wide voltage stabilizing range, low construction cost, high efficiency, no noise, the output of pure sine wave and no waveform distortion.

Description

technical field [0001] The invention relates to a power supply, in particular to a power supply for a cable TV network. Background technique [0002] The power supply is an important device for constructing a cable TV HFC network. There are currently two products on the market: one is an ordinary toroidal transformer (non-stabilizer) power supply; the other is a magnetic saturation transformer (stabilized voltage) power supply. The difference between the two: the former uses high-quality modified stretched high-silicon steel sheet toroidal transformer, which has high power, low copper and iron loss, high efficiency and no noise, pure sine wave output, unstable voltage, and low cost. The latter adopts a high-performance magnetic saturation transformer with automatic voltage stabilization function, wide voltage stabilization range, large output power, strong load capacity, larger noise than the former, and square wave output, and its cost is relatively high. Contents of the...

Claims

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Application Information

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IPC IPC(8): H02P13/00H02M5/10H02M7/04
Inventor 贾文章张卫国蔡宝翔朱涛陆春军
Owner 江苏西贝电子网络有限公司
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