CN2227352Y - Non-intermitted D.C. power special for computer - Google Patents
Non-intermitted D.C. power special for computer Download PDFInfo
- Publication number
- CN2227352Y CN2227352Y CN95203475U CN95203475U CN2227352Y CN 2227352 Y CN2227352 Y CN 2227352Y CN 95203475 U CN95203475 U CN 95203475U CN 95203475 U CN95203475 U CN 95203475U CN 2227352 Y CN2227352 Y CN 2227352Y
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- CN
- China
- Prior art keywords
- storage battery
- power supply
- utility
- model
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an uninterrupted DC power supply, particularly a dedicated uninterrupted DC power supply for computers. The uninterrupted DC power supply comprises a rectifying circuit (1), a storage battery (2), an output end (3) and a storage battery charging and discharging control circuit (4), wherein, the storage battery charging and discharging control circuit and the storage battery are connected in series and then are connected with the output end in a bridge connection mode. The storage battery charging and discharging control circuit is composed of an automatic switching circuit composed of a triode T, a resistance R and a diode D. Under the condition that the power of electric network is cut off, the diode continues to supply power to guarantee the normal work of computers. The utility model has the advantages of reasonable structure, long service life, automatic control for the charge and the discharge of the battery, etc. The utility model can stablize the output voltage of a dedicated power supply for computers.
Description
The utility model relates to the uninterrupted direct supply of a kind of uninterrupted direct supply, particularly computing machine special use.
At present, the direct supply that computing machine uses generally is the Adjustable switch power supply, is used with the UPS communication power supply, and the back that has a power failure to computer power supply, has increased auxiliary device and investment to the user by the interim power supply of UPS conduct.China's utility model patent 92200386 discloses a kind of " DC UPS ", and rectifier power source and battery pack are lumped together, and becomes computer power module.This device can not be controlled automatically to charging and discharging of accumulator, can not regulated output voltage, and serviceable life is low, and effect is undesirable.
The utility model purpose is to overcome above-mentioned shortcoming of the prior art and a kind of simple in structure, long service life is provided, controls the special-purpose uninterrupted direct supply of computing machine of accumulator cell charging and discharging automatically.
The purpose of this utility model is achieved by the following technical solution: comprise rectification circuit, accumulator, output terminal, battery charge-discharge control circuit in the composition of the present utility model, accumulator be connected across output terminal after battery charge-discharge control circuit is connected in series.Battery charge-discharge control circuit is made up of the automatic switch circuit that triode, resistance, diode constitute, and when initial, transistor base voltage designs greater than 0.7V, the triode saturation conduction, and electric current is to charge in batteries; After the battery tension value of reaching capacity, triode is owing to base voltage ends less than 0.7V; After this provide little electric current that accumulator is carried out floating charge by resistance.
Under the grid power blackout situation, accumulator continues to provide power supply by diode, guarantees the computing machine operate as normal.
The utlity model has rational in infrastructure, long service life, control is to characteristics such as charging and discharging of accumulator automatically, output voltage that can stability Calculation machine power source special.
Accompanying drawing is the utility model example structure synoptic diagram.
Below with reference to accompanying drawings, further specify the utility model by embodiment.
In an embodiment, comprise rectification circuit (1), accumulator (2), output terminal (3), battery charge-discharge control circuit (4) in the composition of the present utility model, accumulator (2) be connected across output terminal (3) after battery charge-discharge control circuit (4) is connected in series.Battery charge-discharge control circuit (4) is made up of the automatic switch circuit that triode T, resistance R, diode D constitute, and when initial, the base voltage of triode T designs greater than 0.7V, triode T saturation conduction, and electric current charges to accumulator (2); After the battery tension value of reaching capacity, triode T is owing to base voltage ends less than 0.7V; After this provide little electric current that accumulator (2) is carried out floating charge by resistance R.When line voltage raises suddenly, triode T conducting again, electric current makes circuit output voltage stable to charge in batteries; When line voltage descended, accumulator kept output end voltage stable by diode D discharge.
Under the grid power blackout situation, accumulator (2) continues to provide power supply by diode D, guarantees the computing machine operate as normal.
Claims (2)
1, a kind of special-purpose uninterrupted direct supply of computing machine with rectification circuit (1), accumulator (2), output terminal (3), also comprise battery charge-discharge control circuit (4) in it is characterized in that forming, this circuit is made up of the switching circuit that triode T, resistance R, diode D constitute, and is connected across output terminal (3) after accumulator (2) is connected in series.
2, according to the special-purpose uninterrupted direct supply of the described computing machine of claim 1, design is less than 0.7V when it is characterized in that the base voltage of said triode T is initial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95203475U CN2227352Y (en) | 1995-02-15 | 1995-02-15 | Non-intermitted D.C. power special for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95203475U CN2227352Y (en) | 1995-02-15 | 1995-02-15 | Non-intermitted D.C. power special for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227352Y true CN2227352Y (en) | 1996-05-15 |
Family
ID=33856301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95203475U Expired - Fee Related CN2227352Y (en) | 1995-02-15 | 1995-02-15 | Non-intermitted D.C. power special for computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227352Y (en) |
-
1995
- 1995-02-15 CN CN95203475U patent/CN2227352Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |