Intelligent charger

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...

AI Technical Summary

Problems solved by technology

The latter adopts a high-performance magnetic saturation transformer, which has 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.

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