CN204794045U - Notebook battery charge protection circuit - Google Patents
Notebook battery charge protection circuit Download PDFInfo
- Publication number
- CN204794045U CN204794045U CN201520510488.2U CN201520510488U CN204794045U CN 204794045 U CN204794045 U CN 204794045U CN 201520510488 U CN201520510488 U CN 201520510488U CN 204794045 U CN204794045 U CN 204794045U
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- China
- Prior art keywords
- triode
- transformer
- relay
- connects
- rectifier bridge
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a notebook battery charge protection circuit, including transformer W, rectifier bridge T, relay J and triode V3, the both ends of 220V alternating current are connected at transformer W's winding N1's both ends, and rectifier bridge T's port 1 and transient voltage suppression diode DW are connected to transformer W's winding N2's one end, and transient voltage restraines diode DW's other end ground connection, and rectifier bridge T's port 3 is connected to transformer W's winding N2's the other end. The utility model discloses notebook battery charge protection circuit adopts no chip structure, only uses essential electronic component to form, can its charging source of automatic cutout after the notebook battery is full of the electricity to set up transient voltage and restrained the diode in the circuit, the leakage inductance voltage that produces in the time of can effectively eliminating the undulant spike voltage who produces of commercial power with the transformer coupling, therefore have stable performance, long service life and simple structure's advantage.
Description
Technical field
The utility model relates to a kind of notebook internal circuit, specifically a kind of Notebook Battery charge protector.
Background technology
Notebook is the requisite instrument of modern office learning recreation, a lot of people finds the very fast of the life time decay of Notebook Battery when using notebook, to trace it to its cause 2 points, one is that existing notebook charge inside circuit mostly is trickle charge, most people use during notebook and can plug-in use, in use procedure, Notebook Battery is in always and rushes electricity condition, cause the long-term overcharge of battery, two be peak voltage in line voltage and transformer coupled time leakage inductance voltage to the impact of storage battery, thus damage is caused to it.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, the Notebook Battery charge protector of stable performance, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of Notebook Battery charge protector, comprise transformer W, rectifier bridge T, relay J and triode V3, the two ends of the winding N1 of described transformer W connect the two ends of 220V alternating current, one end of the winding N2 of transformer W connects port one and the transient voltage suppressor diode DW of rectifier bridge T, the other end ground connection of transient voltage suppressor diode DW, the other end of the winding N2 of transformer W connects the port 3 of rectifier bridge T, the port 2 of rectifier bridge T connects the contact J-1 of electric capacity C1 and relay J, the other end contact resistance R1 of the contact J-1 of relay J, a stiff end of potentiometer RP1 and the sliding end of potentiometer RP1, the other end contact resistance R3 of resistance R1, the negative electrode of diode D1, the positive pole of relay J and Notebook Battery E, another stiff end contact resistance R2 of potentiometer RP1, the base stage of electric capacity C2 and triode V1, the other end of electric capacity C1 connects the other end of electric capacity C2, the other end of resistance R2, the emitter of triode V2 and the port 4 of rectifier bridge T, the base stage of the emitter connecting triode V2 of triode V1, the collector electrode of the collector electrode connecting triode V2 of triode V1, electric capacity C3, resistance R4, the negative pole of Notebook Battery E and the emitter of triode V3, the other end of relay J connects the anode of diode D1 and the collector electrode of triode V3, the base stage of triode V1 connects the other end of electric capacity C3 and the sliding end of potentiometer RP2, the other end of resistance R3 connects a stiff end of potentiometer RP2, the other end of resistance R4 connects another stiff end of potentiometer RP2.
As preferred version of the present utility model: described relay J is normally-closed contact relay.
Compared with prior art; the beneficial effects of the utility model are: the utility model Notebook Battery charge protector adopts chipless structure; only use basic electronic component composition; its charge power supply can be automatically cut off after Notebook Battery is full of electricity; and be provided with transient voltage suppressor diode in circuit; effectively can eliminate peak voltage that city electro-mechanical wave produces and transformer coupled time the leakage inductance voltage that produces, therefore there is the simple advantage of stable performance, long service life and structure.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of Notebook Battery charge protector.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of Notebook Battery charge protector, comprise transformer W, rectifier bridge T, relay J and triode V3, the two ends of the winding N1 of described transformer W connect the two ends of 220V alternating current, one end of the winding N2 of transformer W connects port one and the transient voltage suppressor diode DW of rectifier bridge T, the other end ground connection of transient voltage suppressor diode DW, the other end of the winding N2 of transformer W connects the port 3 of rectifier bridge T, the port 2 of rectifier bridge T connects the contact J-1 of electric capacity C1 and relay J, the other end contact resistance R1 of the contact J-1 of relay J, a stiff end of potentiometer RP1 and the sliding end of potentiometer RP1, the other end contact resistance R3 of resistance R1, the negative electrode of diode D1, the positive pole of relay J and Notebook Battery E, another stiff end contact resistance R2 of potentiometer RP1, the base stage of electric capacity C2 and triode V1, the other end of electric capacity C1 connects the other end of electric capacity C2, the other end of resistance R2, the emitter of triode V2 and the port 4 of rectifier bridge T, the base stage of the emitter connecting triode V2 of triode V1, the collector electrode of the collector electrode connecting triode V2 of triode V1, electric capacity C3, resistance R4, the negative pole of Notebook Battery E and the emitter of triode V3, the other end of relay J connects the anode of diode D1 and the collector electrode of triode V3, the base stage of triode V1 connects the other end of electric capacity C3 and the sliding end of potentiometer RP2, the other end of resistance R3 connects a stiff end of potentiometer RP2, the other end of resistance R4 connects another stiff end of potentiometer RP2.
Relay J is normally-closed contact relay.
Operation principle of the present utility model is: 220V alternating current is through transformer W step-down, rectifier bridge T rectification, DC pulse moving voltage is exported after electric capacity C1 filtering, the peak voltage clamper that city's electro-mechanical wave can produce by transient voltage suppressor diode DW is to safety value, and ringing voltage of decaying, simultaneously also to the leakage inductance voltage produced time transformer coupled by stronger inhibitory action, DC pulse voltage is through relay normally-closed contact J-1, R1, by storage battery E, the port 4 of V2 to rectifier bridge T, realize the charging to storage battery E, regulate the size of RP1, namely V1 is regulated, the base potential of V2, thus regulate the electric current of V2, i.e. charging current.VT3 saturation conduction, K1 obtains electric adhesive, and normally-closed contact K1-2 disconnects, and cuts off charge circuit, and charger stops charging.Regulate RP2, the higher limit that storage battery is full of automatic stop can be set.When the voltage of storage battery E is elevated to set point, triode V3 conducting, relay J conducting, its normally-closed contact J-1 deenergization voltage, reaches the object of charge protection.Circuit adopts chipless structure, only use basic electronic component composition, its charge power supply can be automatically cut off after Notebook Battery is full of electricity, and be provided with transient voltage suppressor diode in circuit, effectively can eliminate peak voltage that city electro-mechanical wave produces and transformer coupled time the leakage inductance voltage that produces, therefore there is the simple advantage of stable performance, long service life and structure.
Claims (2)
1. a Notebook Battery charge protector, comprise transformer W, rectifier bridge T, relay J and triode V3, it is characterized in that, the two ends of the winding N1 of described transformer W connect the two ends of 220V alternating current, one end of the winding N2 of transformer W connects port one and the transient voltage suppressor diode DW of rectifier bridge T, the other end ground connection of transient voltage suppressor diode DW, the other end of the winding N2 of transformer W connects the port 3 of rectifier bridge T, the port 2 of rectifier bridge T connects the contact J-1 of electric capacity C1 and relay J, the other end contact resistance R1 of the contact J-1 of relay J, a stiff end of potentiometer RP1 and the sliding end of potentiometer RP1, the other end contact resistance R3 of resistance R1, the negative electrode of diode D1, the positive pole of relay J and Notebook Battery E, another stiff end contact resistance R2 of potentiometer RP1, the base stage of electric capacity C2 and triode V1, the other end of electric capacity C1 connects the other end of electric capacity C2, the other end of resistance R2, the emitter of triode V2 and the port 4 of rectifier bridge T, the base stage of the emitter connecting triode V2 of triode V1, the collector electrode of the collector electrode connecting triode V2 of triode V1, electric capacity C3, resistance R4, the negative pole of Notebook Battery E and the emitter of triode V3, the other end of relay J connects the anode of diode D1 and the collector electrode of triode V3, the base stage of triode V1 connects the other end of electric capacity C3 and the sliding end of potentiometer RP2, the other end of resistance R3 connects a stiff end of potentiometer RP2, the other end of resistance R4 connects another stiff end of potentiometer RP2.
2. a kind of Notebook Battery charge protector according to claim 1, is characterized in that, described relay J is normally-closed contact relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510488.2U CN204794045U (en) | 2015-07-15 | 2015-07-15 | Notebook battery charge protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510488.2U CN204794045U (en) | 2015-07-15 | 2015-07-15 | Notebook battery charge protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794045U true CN204794045U (en) | 2015-11-18 |
Family
ID=54534028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520510488.2U Expired - Fee Related CN204794045U (en) | 2015-07-15 | 2015-07-15 | Notebook battery charge protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794045U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685032A (en) * | 2017-03-22 | 2017-05-17 | 成都万家健康管理股份有限公司 | Storage battery with indicator light and capable of automatically shutting off charging circuit |
| CN106787060A (en) * | 2017-03-22 | 2017-05-31 | 成都万家健康管理股份有限公司 | The battery of charging circuit can be automatically cut off |
| CN106899953A (en) * | 2017-04-12 | 2017-06-27 | 国家电网公司 | A kind of cable tunnel emergency communication system |
| CN107147312A (en) * | 2017-04-13 | 2017-09-08 | 成都卡诺源科技有限公司 | A kind of DC-stabilized circuit of high current output |
-
2015
- 2015-07-15 CN CN201520510488.2U patent/CN204794045U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685032A (en) * | 2017-03-22 | 2017-05-17 | 成都万家健康管理股份有限公司 | Storage battery with indicator light and capable of automatically shutting off charging circuit |
| CN106787060A (en) * | 2017-03-22 | 2017-05-31 | 成都万家健康管理股份有限公司 | The battery of charging circuit can be automatically cut off |
| CN106899953A (en) * | 2017-04-12 | 2017-06-27 | 国家电网公司 | A kind of cable tunnel emergency communication system |
| CN107147312A (en) * | 2017-04-13 | 2017-09-08 | 成都卡诺源科技有限公司 | A kind of DC-stabilized circuit of high current output |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |