CN2274386Y

CN2274386Y - Uninterrupted power-supply device special for switch power-supply

Info

Publication number: CN2274386Y
Application number: CN 96200240
Authority: CN
Inventors: 吴绍龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-09
Filing date: 1996-04-09
Publication date: 1998-02-11
Anticipated expiration: 2006-04-09

Abstract

The utility model provides an uninterrupted power-supply device special for a switch power supply. The uninterrupted power-supply device special for a switch power supply is a new UPS. The uninterrupted power-supply device special for a switch power supply is composed of a rectification circuit and a charging control circuit. The direct current which is used for the switch power supply is outputted by the output terminal of the charging control circuit. The damage caused to the switch power supply by the waveform distortion in the inversion of the traditional UPS is avoided fundamentally. The reliable performance of the UPS is enhanced. The circuit of the utility model is simple. The number of the elements is very small. The charging speed is high. The output of the direct current is stable, the safety performance of the equipment is enhanced, and the long-term stabilized operation of the electric equipment can be ensured.

Description

The special-purpose uninterrupted power supply(ups) of Switching Power Supply

The utility model relates to a kind of uninterrupted power supply(ups), especially a kind of uninterrupted power supply(ups) that is specifically designed to Switching Power Supply.

Uninterrupted power supply effect in a lot of fields more and more seems important, and existing uninterrupted power supply changes the battery power of self and the normal similar alternating current of alternating current into when AC power is unusual, power consumption equipment can be worked on when unusual in extraneous supply line, but when this kind UPS is used for pure perception or pure capacitive load, inversion part to UPS will cause serious threat, in fact the fault of UPS causes owing to inversion component wear partly mostly, so existing UPS is complex structure not only, consume a large amount of elements, and poor reliability, the failure rate height.

The purpose of this utility model is to provide a kind of circuit structure simple, and the novel UPS that energy consumption is low, reliability is high not only can make Switching Power Supply can work on when having a power failure, and can provide from the stability power supply to Switching Power Supply.

The technical solution of the utility model is: a kind of novel uninterrupted power supply (ups) Unity device, it is characterized in that it constitutes by rectification circuit with the joining charging control circuit of this circuit output end, the direct current that the output output of charging control circuit is used for Switching Power Supply, described charging control circuit is by controllable silicon, photoelectrical coupler (PC) and resistance are formed, wherein the anode of controllable silicon T1 links to each other with the positive pole of rectification output, negative terminal links to each other with 1 end of inductance L, control end is by R3 and photoelectrical coupler PC1,5 pin of PC2 link to each other, and PC1,4 pin of PC2 and 1 end of inductance L join, 1 pin of PC1 and 2 ends of inductance L join, 2 pin connect anode, and 1 pin of PC2 connects anode by voltage-stabiliser tube DW, and 2 pin connect battery cathode, also a plurality of at this photoelectrical coupler, so that more battery is monitored.

Charging control circuit of the present utility model also can be made of relay, electric capacity, diode, wherein normal contact K2 of capacitor C 1 and relay J 2 inserts in the incoming line of rectification circuit, inductance L 1 and L2 insert the rectification outlet line, normal contact K1 and 2 ends of L1 the join negative pole of the positive pole of capacitor C 2 by relay J 1 connects the rectification output negative pole, one end and the battery pack negative pole of relay J 1 coil join, one end of J2 coil joins by diode D1 and battery pack negative pole, and the other end of J1, J2 coil all connects the rectification output negative pole.

Advantage of the present utility model is: it only is made of rectification circuit and charging control circuit is direct current stably by its output, the infringement of fundamentally having avoided traditional UPS Switching Power Supply to be caused because of wave distortion in the inversion, therefore not only circuit is simple, the element consumption is few, but also greatly improved the unfailing performance of UPS, in addition because battery is equivalent to a great filter capacitor of capacity, extraneous flat disturbing at this weakened greatly, so improved device ', guarantee power consumption equipment energy long-term stable operation, it is fast that it also has charging rate in addition, and control is reliable, characteristics such as energy consumption is little, real is a kind of novel UPS.

Fig. 1 is embodiment 1 circuit diagram of the utility model.

Fig. 2 is embodiment 2 circuit diagrams of the utility model.

Among Fig. 1, alternating current becomes the direct current of pulsation after rectification, this direct current through controllable silicon T1 to battery pack E charging, when charging current during at rated value, the output no current of PC1 is by (opening circuit), this moment T1 ON/OFF time ratio maximum, the electric current that passes through is also big, when this electric current is crossed in limited time, the input conducting of PC1, the while output is saturation conduction also, and then the ON/OFF time ratio of T1 reduces, and makes charging current controlled.When being charged to height, cell voltage prescribes a time limit, the input conducting of PC2, and its output is saturation conduction also, controllable silicon T1 is turn-offed, thereby protected over-charging of battery.

Among Fig. 2, the direct current after the rectification is to battery charge, when charging current is excessive, the J1 adhesive disconnects R1, thereby has reduced charging, if since zero load or voltage cross from making charging current continue to increase to make J2 and closing, then the normally-closed contact K2 of J2 disconnects, and avoids overcharging of battery.

Claims

1, a kind of uninterrupted power supply(ups), it is characterized in that it comprise rectification circuit and connect with this rectification circuit output end and can constitute at the galvanic charging control circuit that its output output power supply source switch is used.

2, supply unit according to claim 1, it is characterized in that described charging control circuit is by controllable silicon, photoelectrical coupler (PC) and resistance constitute, wherein the anode of controllable silicon T1 links to each other with the positive pole of rectification output, negative terminal links to each other with 1 end of inductance L, and control end links to each other with 5 pin of photoelectrical coupler by R3, and 4 pin of photoelectrical coupler link to each other with 1 end of inductance L, 1 pin links to each other with 2 ends of inductance L, and 2 pin link to each other with battery.

3, supply unit according to claim 1, it is characterized in that described charging control circuit also can be by relay, electric capacity and diode are formed, wherein the normally-closed contact K2 of capacitor C 1 and relay J 2 inserts in the rectification incoming line, the normally-closed contact K1 of capacitor C 2 and relay J 1 inserts in the rectification outlet line by inductance L 1, the coil and the battery of relay J 1 join, and the coil of J2 joins by diode D1 and battery.