CN2164610Y - Voltage stabilizer for electricity charging - Google Patents

Abstract

The utility model relates to a charging apparatus and a voltage stabilizer. Inputs of a generator of asymmetrical square waves are connected with a divider circuit; outputs of the generator are respectively connected with two inputs of a driving amplifying circuit for charging and discharging; the outputs of the driving amplifying circuit for charging and discharging are both connected with lower static contacts of a charging voltage-stabilizing transfer switch; the outputs of the driving amplifying circuit for discharging are simultaneously connected with the inputs of a charging monitoring circuit; the outputs of the charging monitoring circuit are respectively connected with the output of the driving amplifying circuit for charging and the inputs of driving amplifying circuit for discharging; the output of a voltage stabilizing circuit is directly connected with the upper stationary contact of the charging transfer switch; the movable contact of the switch and circuit ground wires are output as a complete machine.

Description

Voltage stabilizer for electricity charging

The utility model relates to a kind of charger and pressurizer.

At present, there is the Ni-Cd battery charger of various models to sell on the market, also have panoramic pressurizer to sell, but their function is single separately, organically is not combined into one.And existing charger moulding dullness; simple in structure; use and carry inconvenience; it has only a kind of standard charging to select usually; charging interval is longer; also not protection after charging causes overchargedly or not enough easily, influences useful life of battery; mostly the pressurizer of selling on the market is simple buck rectifier; filtering does not all have, and has let alone voltage stabilizing, during as the particularly low and middle-grade machine of recording playback machine; noise is too big; and, transfer broadcast receiver etc. in full at the higher electrical equipment of ask for something, then can not use at all.

The purpose of this utility model is exactly in order to address the above problem, and a kind of Voltage stabilizer for electricity charging that will charge and be integrated with two kinds of functions of voltage stabilizing is provided.

Technical solution of the present utility model:

A kind of Voltage stabilizer for electricity charging, it includes: by transformer B, bridge rectifier block V ₅-V ₈, capacitor C ₁, C ₂, potentiometer W ₁With integrated package of pressure-stabilizing IC ₅The voltage stabilizing circuit of forming is by comparator IC ₁, resistance R ₃, R ₄, R ₅, capacitor C ₃, diode V ₁The asymmetrical square wave generator of forming is by comparator IC ₂, diode V ₂, V ₃, V ₄, resistance R ₇, R ₈, R ₉, potentiometer W ₂, the charge observation circuit that luminous tube LED forms is by comparator IC ₃, multiple tube BG ₁, BG ₂, resistance R ₁₀, R ₁₁The charging of forming drives amplifying circuit, by comparator IC ₄, multiple tube BG ₃, BG ₄, resistance R ₁₂, R ₁₃The discharge of forming drives amplifying circuit, it is characterized in that:

The input of a, asymmetrical square wave generator is from comparator IC ₁In-phase input end draw and meet bleeder circuit R ₁, R ₂Mid point, it is exported from IC ₁Output to draw respectively the input that drives amplifying circuit with charging, discharge be comparator IC ₃Inverting input and comparator IC ₄In-phase input end connect, charging drives the output of amplifying circuit from multiple tube BG ₂Emitter-base bandgap grading draw and meet charging and voltage stabilizing change over switch K ₁Following fixed contact, discharge drives the output of amplifying circuit from multiple tube BG ₃, BG ₄Collector electrode draw by current-limiting resistance R ₁₄Also meet K ₁Following fixed contact, the output that discharge drives amplifying circuit is comparator IC with the input of charge observation circuit simultaneously ₂Inverting input connect IC ₂In-phase input end by potentiometer W ₂Connect the output of voltage stabilizing circuit, the output of charge observation circuit is from IC ₂Output draw respectively by backward diode V ₃, V ₄The output that drives amplifying circuit with charging is IC ₃Output and the discharge other end that drives amplifying circuit to go into end be IC ₄In-phase input end connect, the output of voltage stabilizing circuit is directly and charging and voltage stabilizing change over switch K ₁Last fixed contact connect K ₁Moving contact and circuit ground export as complete machine;

B, complete machine output are drawn with electrical appliance by charging plug 3 and are connected, and the plug end of its charging plug 3 is half-cylindrical.

The utility model organically is integrated charger and pressurizer, its volume is small and exquisite, compact conformation, use easy to carry, both rechargeable battery can have been inserted in the battery compartment and charge, also available external charge plug directly is inserted on the electrical appliance self-contained battery is charged, charging modes divides two kinds of metric system/14 hour and fast/2 hours, and have the charging automatic function for monitoring, function of the present utility model conversion is very convenient, only need dial change over switch and can finish the conversion that is charged to voltage stabilizing output, has the precision of voltage regulation height during its voltage stabilizing output, power supply ripple is little, the advantage that power output is big.

Fig. 1 is an outline drawing structural representation of the present utility model;

Fig. 2 is an electrical schematic diagram of the present utility model;

Fig. 3 is a charging plug schematic diagram of the present utility model.

As Fig. 1, machine line of the present utility model is installed on the top in the box body 1, and the bottom in the box body 1 is provided with battery compartment 2, is used for placing being recharged battery, charger and pressurizer organically is combined as a whole, charging and voltage stabilizing change over switch K in the circuit ₁With speed change over switch K ₂Be arranged on box body 1 front panel, be respectively applied for charging/voltage stabilizing and fill/mark the selection of filling soon, potentiometer W in the circuit ₁And W ₂And indicator light LED also is arranged on the panel of box body 1 W ₁The adjusting of output voltage during the control voltage stabilizing, W ₂Automatic stop voltage-regulation during the control charging, LED is as the charging indication.The course of work of the present utility model such as Fig. 2, civil power 220V voltage is through transformer B, bridge rectifier block V ₅-V ₈, capacitor C ₁Rectifying and wave-filtering obtains pulsating direct current and is added in integrated package of pressure-stabilizing IC ₅Input, IC ₅The stable DC voltage of output is again through capacitor C ₂Filtering is divided into two-way, and one the tunnel for live part provides working power, and charging and voltage stabilizing change over switch K is delivered on another road ₁On, by regulator potentiometer W ₁Can obtain different voltage of voltage regulation output.In the live part, bleeder circuit R ₁, R ₂Drive amplifying circuit and discharge to charging simultaneously and drive IC in the amplifying circuit ₃In-phase input end and IC ₄Inverting input provide reference voltage, they and asymmetrical square wave generator IC ₁The signal of sending here compares, its IC ₃Output through R ₁₁Current limliting makes multiple tube BG ₁, BG ₂Most of the time is operated in conducting state, IC ₄Output through R ₁₃Current limliting makes multiple tube BG ₃, BG ₄At BG ₁, BG ₂Conducting when ending, battery is through resistance R ₁₄Transient large current discharge.Be protection charging quality, prevent that polarization phenomena from producing, in the utility model at bridge rectifier block V ₅-V ₈Output and the charging power end that drives amplifying circuit be multiple tube BG ₁, BG ₂Collector electrode between, insert by resistance R ₁₅, R ₁₆The constant-current source of forming, R ₁₅, R ₁₆One end connects and bridge rectifier block V ₅-V ₈Output link to each other R ₁₅, R ₁₆Be connected to speed change over switch K between the other end ₂Normally-closed contact K _2a, K ₂Normally opened contact K _2bIC in one end and the asymmetrical square wave generator ₁Inverting input connect, the other end passes through resistance R ₆Connect the output of voltage stabilizing circuit.When charging drives multiple tube BG in the amplifying circuit ₁, BG ₂During conducting, provide the charging current when filling soon, work as K ₂Normally-closed contact K _2aOpen normally opened contact K _2bWhen closed, IC ₁Inverting input voltage is higher than in-phase input end, IC all the time ₁All the time output low level makes IC ₃All the time export high level, so BG ₁, BG ₂Conducting always, R is passed through in the output of voltage stabilizing circuit ₁₅Provide 50 milliamperes of charging currents to being recharged battery, at this moment BG ₃, BG ₄All the time end.In the charge observation circuit, potentiometer W ₂Dividing potential drop is comparator IC ₂In-phase input end provides reference voltage, when this voltage is higher than when being recharged cell voltage IC ₂Output HIGH voltage, indicator light LED is bright, pilot cell charging, diode V ₃, V ₄End, to BG _1～4The charge and discharge loop do not have influence, be charged to when being higher than reference voltage IC when being recharged cell voltage ₂Output low level, V at this moment ₃, V ₄Conducting is with multiple tube BG _1～4Base earth impels them to end, and charging finishes, and LED extinguishes simultaneously, and indication is full of.Change W ₂Can change the charging reference voltage of setting, for the 2-4 batteries provides charging automatic stop protection.Output of the present utility model is connected with electrical appliance by charging plug 3, charging plug 3 is as Fig. 3, its front end is half-cylindrical, the rear end is identical with the common power plug, when it inserts the supply socket of general electrical appliance, quiet, movable contact spring in the socket can not backed down, and the output of charging circuit directly links to each other with battery, and charging is carried out.When need carry out voltage stabilizing when output, only need charging plug 3 is turned over one side of something, back down dynamic and static reed with the semicolumn of front end, voltage stabilizing output disconnects with internal cell, provides voltage stabilizing to export to electrical appliance.

Claims (3)

1, a kind of Voltage stabilizer for electricity charging, it includes: by transformer B, bridge rectifier block V ₅-V ₈, capacitor C ₁, C ₂, potentiometer W ₁With integrated package of pressure-stabilizing IC ₅The voltage stabilizing circuit of forming is by comparator IC ₁, resistance R ₃, R ₄, R ₅, capacitor C ₃, diode V ₁The asymmetrical square wave generator of forming is by comparator IC ₂, diode V ₂, V ₃, V ₄, resistance R ₇, R ₈, R ₉, potentiometer W ₂, the charge observation circuit that luminous tube LED forms is by comparator IC ₃, multiple tube BG ₁, BG ₂, resistance R ₁₀, R ₁₁The charging of forming drives amplifying circuit, by comparator IC ₄, multiple tube BG ₃, BG ₄, resistance R ₁₂, R ₁₃The discharge of forming drives amplifying circuit, it is characterized in that:

The input of a, asymmetrical square wave generator is from comparator IC ₁In-phase input end draw and meet bleeder circuit R ₁, R ₂Mid point, it is exported from IC ₁Output to draw respectively the input that drives amplifying circuit with charging, discharge be comparator IC ₃Inverting input and comparator IC ₄In-phase input end connect, charging drives the output of amplifying circuit from multiple tube BG ₂Emitter-base bandgap grading draw and meet charging and voltage stabilizing change over switch K ₁Following fixed contact, discharge drives the output of amplifying circuit from multiple tube BG ₃, BG ₄Collector electrode draw by current-limiting resistance R ₁₄Also meet K ₁Following fixed contact, the output that discharge drives amplifying circuit is comparator IC with the input of charge observation circuit simultaneously ₂Inverting input connect IC ₂In-phase input end by potentiometer W ₂Connect the output of voltage stabilizing circuit, the output of charge observation circuit is from IC ₂Output draw respectively by backward diode V ₃, V ₄The output that drives amplifying circuit with charging is IC ₃Output and the discharge other end that drives amplifying circuit to go into end be IC ₄In-phase input end connect, the output of voltage stabilizing circuit is directly and charging and voltage stabilizing change over switch K ₁Last fixed contact connect K ₁Moving contact and circuit ground export as complete machine;

B, complete machine output are drawn with electrical appliance by charging plug 3 and are connected, and the plug end of its charging plug 3 is half-cylindrical.

2, by the described Voltage stabilizer for electricity charging of claim 1, it is characterized in that bridge rectifier block V in voltage stabilizing circuit ₅-V ₈Output and the charging power end that drives amplifying circuit be multiple tube BG ₁, BG ₂Collector electrode between insert by resistance R ₁₅, R ₁₆The constant-current source of forming, R ₁₅, R ₁₆One end connects and bridge rectifier block V ₅-V ₈Output link to each other R ₁₅, R ₁₆Be connected to speed change over switch K between the other end ₂Normally-closed contact K _2a, K ₂Normally opened contact K _2bIC in one end and the asymmetrical square wave generator ₁Inverting input connect, the other end passes through resistance R ₆Connect the output of voltage stabilizing circuit.

3, by the described Voltage stabilizer for electricity charging of claim 1, it is characterized in that machine line is installed on the top in the box body 1, the bottom in the box body 1 is provided with battery compartment 2.

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