CN2904427Y

CN2904427Y - EPS power charging circuit

Info

Publication number: CN2904427Y
Application number: CNU200620013733XU
Authority: CN
Inventors: 胡波
Original assignee: HENGLI POWER SUPPLY CO Ltd
Current assignee: HENGLI POWER SUPPLY CO Ltd
Priority date: 2006-04-24
Filing date: 2006-04-24
Publication date: 2007-05-23
Anticipated expiration: 2016-04-24

Abstract

The utility model relates to a EPS power charging circuit that comprises more than one high frequency switching and charging module(4), which is characterized in that at least two high frequency switching and charging module(4) is connected in series between the positive and the negative output terminal of the charging circuit. The EPS power charging circuit uses at least two high frequency switching and charging module connected in series whose charging voltage can reach over five hundred and eighty V, and the way of charging can switch between the average charge and the floating charge.

Description

A kind of EPS power charging circuit

Technical field

The utility model relates to power technology, particularly a kind of EPS power charging circuit.

Background technology

Emergency power supply Ergency Power Supply is called for short EPS, is the power supply that designs for fire-fighting equipment and " stage load " (or electric consumption on lighting) specially.Basic circuit structure such as Fig. 1, emergency power supply 1 comprise charging circuit 2, storage battery 5, inverter, diverter switch 3 and control circuit thereof.Generally speaking, in AC network, promptly import power work just often, through diverter switch 3 powering loads, charging circuit carries out intelligent charge for reserve battery 5 simultaneously by AC network; When the AC network outage, or line voltage is when being below or above 25% rated value, exchange detection, inverter signal is provided by control circuit, start inverter, with the dc inverter of storage battery 5 deposits is that stable alternating current while diverter switch 3 switches to inverter output immediately, continues as load the pure sine wave alternating current is provided; After ac grid voltage is normal, emergency power supply will recover the AC network power supply automatically, monitor the civil power real-time status simultaneously.

The storage battery that EPS uses, adopt the EPS power supply of HF switch charging module to charge in batteries, circuit as shown in Figure 2 at present, its charging circuit comprises the HF switch charging module 4 of two output parallel connections, jointly to 5 chargings of storage battery/battery pack, charging voltage can't be all, floating charge switches about 286V.

The utility model content

The utility model technical issues that need to address are, how a kind of EPS power charging circuit is provided, and charging voltage can reach more than the 580V, and charging modes can be all, floating charge is switched.

The above-mentioned technical problem of the utility model solves like this, and a kind of EPS power charging circuit is provided, and comprises an above HF switch charging module, it is characterized in that, comprises two described HF switch charging module serial connections between the positive and negative output of this charging circuit at least.

According to the charging circuit that the utility model provides, described HF switch charging module is two, its output serial connection, and charging voltage can rise to former charging.

According to the charging circuit that the utility model provides, described HF switch charging module is four, two one group, and two described HF switch charging module outputs serial connections within every group, output and connecing between two groups.

According to the charging circuit that the utility model provides, described HF switch charging module is three, its output serial connection bunchiness.

According to the charging circuit that the utility model provides, described HF switch charging module is six, triplets, three described HF switch charging module outputs serial connection bunchiness within every group, output and connecing between two groups.

The EPS power charging circuit that the utility model provides adopts at least two HF switch charging modules serial connection, and charging voltage can reach more than the 580V, and charging modes can be all, the floating charge switching.

Description of drawings

Further the utility model is elaborated below in conjunction with the drawings and specific embodiments.

Fig. 1 is the electric theory diagram of EPS power supply.

Fig. 2 adopts the EPS power circuit principle schematic diagram of HF switch charging module to charge in batteries at present.

Fig. 3 is the EPS power circuit principle schematic diagram of the employing HF switch charging module that provides of the utility model to charge in batteries.

Embodiment

As Fig. 3, EPS power supply of the present utility model, its charging circuit is made up of two HF switch charging modules 4, and its output serial connection is to battery pack 5 chargings, and charging voltage can be two HF switch charging modules 4 of tradition and the twice that connects output.

EPS power supply of the present utility model, its charging circuit also can be made up of four HF switch charging modules 4, and two or two series connection backs also connect output to battery pack 5 chargings, and charging voltage also can be two HF switch charging modules 4 of tradition and the twice that connects output.

The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.

Claims

1, a kind of EPS power charging circuit comprises an above HF switch charging module (4), it is characterized in that, comprises two described HF switch charging modules (4) serial connection between the positive and negative output of this charging circuit at least.

According to the described charging circuit of claim 1, it is characterized in that 2, described HF switch charging module (4) is two, its output serial connection.

According to the described charging circuit of claim 1, it is characterized in that 3, described HF switch charging module (4) is four, two one group, two described HF switch charging module outputs serial connections within every group, output and connecing between two groups.

According to the described charging circuit of claim 1, it is characterized in that 4, described HF switch charging module (4) is three, its output serial connection bunchiness.

According to the described charging circuit of claim 1, it is characterized in that 5, described HF switch charging module (4) is six, triplets, three described HF switch charging module outputs serial connection bunchiness within every group, output and connecing between two groups.