CN104779653A - Charging indicating circuit - Google Patents
Charging indicating circuit Download PDFInfo
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- CN104779653A CN104779653A CN201410013255.1A CN201410013255A CN104779653A CN 104779653 A CN104779653 A CN 104779653A CN 201410013255 A CN201410013255 A CN 201410013255A CN 104779653 A CN104779653 A CN 104779653A
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- H02J7/027—
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Abstract
An embodiment of the invention discloses a charging indicating circuit comprising a first indicating lamp, a first voltage dividing resistor, a triode, a second indicating lamp, and a voltage stabilizing diode. The anode of the first indicating lamp is connected to the positive electrode of low-voltage direct-current power, and the cathode of the first indicating lamp is connected to the negative electrode of the low-voltage direct-current power. One end of the first voltage dividing resistor is connected to the positive electrode of the low-voltage direct-current power, and the other end of the first voltage dividing resistor is connected with the base of the triode. The collector of the triode is connected to the positive electrode of the low-voltage direct-current power. The cathode of the voltage stabilizing diode is connected with the collector of the triode. The anode of the voltage stabilizing diode is connected to the negative electrode of the low-voltage direct-current power. The emitter of the triode is connected with the anode of the second indicating lamp. The cathode of the second indicating lamp is connected to the negative electrode of the low-voltage direct-current power. The low-voltage direct-current power is used for charging an external charging load. By adopting the charging indicating circuit of the invention, a user can be reminded of the access state of an external power supply and the charging state of the charging load in the charging process, and the user experience can be improved.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of charging indication.
Background technology
Along with the development of electronic technology, increasing electronic product arises at the historic moment.Wherein, the electronic product of a class needs to carry out maintenance work by charging, but self does not have the function of electricity display.So, this electronic product is in charging process, and user is difficult to the charged state differentiating electronic product, if undercharge, will affect the flying power of electronic product, if overcharged, by the life-span of loss charge storage element.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of charging indication, can be implemented in charging process and points out the access state of external power supply and the charged state of charging load, improves Consumer's Experience.
In order to solve the problems of the technologies described above, embodiments provide a kind of charging indication, comprise the first indicator light, the first divider resistance, triode, the second indicator light and voltage stabilizing didoe, wherein:
The positive pole of the anode access low-voltage DC of described first indicator light, the negative pole of the negative electrode access low-voltage DC of described first indicator light, the positive pole of one end access low-voltage DC of described first divider resistance, the other end of described first divider resistance is connected with the base stage of described triode, the positive pole of the collector electrode access low-voltage DC of described triode, the negative electrode of described voltage stabilizing didoe is connected with the collector electrode of described triode, the negative pole of the anode access low-voltage DC of described voltage stabilizing didoe, the emitter of described triode is connected with the anode of described second indicator light, the negative pole of the negative electrode access low-voltage DC of described second indicator light, described low-voltage DC is used for charging to external charge load.
Implement the embodiment of the present invention, there is following beneficial effect: the embodiment of the present invention is in charging process, the access state of external power supply is pointed out by the light on and off state of the first indicator light, and utilize the reverse breakdown characteristics of voltage stabilizing didoe and the switching characteristic of triode, light on and off state in conjunction with the second indicator light points out the charged state of charging load, improves Consumer's Experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit theory diagrams of a kind of charging indication that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the circuit theory diagrams of a kind of charging indication in the embodiment of the present invention.Charging indication as shown in the figure in the embodiment of the present invention at least can comprise the first indicator light, the first divider resistance, triode, the second indicator light and voltage stabilizing didoe, wherein:
The positive pole of the anode access low-voltage DC of the first indicator light, the negative pole of the negative electrode access low-voltage DC of the first indicator light, the positive pole of one end access low-voltage DC of the first divider resistance, the other end of the first divider resistance is connected with the base stage of triode, the positive pole of the collector electrode access low-voltage DC of triode, the negative electrode of voltage stabilizing didoe is connected with the collector electrode of triode, the negative pole of the anode access low-voltage DC of voltage stabilizing didoe, the emitter of triode is connected with the anode of the second indicator light, the negative pole of the negative electrode access low-voltage DC of the second indicator light, low-voltage DC is used for charging to external charge load.
Optionally, charging indication also comprises transformer and rectifier bridge, the secondary end of transformer is connected with the input of rectifier bridge, the positive pole of the output of rectifier bridge is connected with the anode of the first indicator light, one end of the first divider resistance and the collector electrode of triode, and the negative pole of the output of rectifier bridge is connected with the anode of the negative electrode of the first indicator light, the base stage of triode and voltage stabilizing didoe.It is pointed out that the output of now rectification bridge output end is above-mentioned low-voltage DC.
Optionally, charging indication also comprises filter capacitor, the positive pole of the anode access low-voltage DC of filter capacitor, the negative pole of the negative electrode access low-voltage DC of filter capacitor.
Optionally, charging indication also comprises diode, the positive pole of the anode access low-voltage DC of described diode.
Accordingly, charging indication also comprises current-limiting resistance, and the anode of the first indicator light accesses the positive pole of low-voltage DC by current-limiting resistance.
Optionally, charging indication also comprises the second divider resistance, and one end of the second divider resistance is connected with the base stage of triode, the negative pole of the other end access low-voltage direct of the second divider resistance.
Accordingly, charging indication also comprises the 3rd divider resistance, and the collector electrode of triode accesses the positive pole of low-voltage DC by the 3rd divider resistance.
Optionally, the model of above-mentioned rectifier bridge is 1N4001.
Refer to Fig. 1, a kind of charging indication as shown in the figure, wherein, first indicator light is D1, and the second indicator light is D2, and the first divider resistance is R1, triode is Q1, voltage stabilizing didoe is D4, and transformer is R, and rectifier bridge is 1N4001, diode is D3, current-limiting resistance is R1, and the second divider resistance is R3, and the 3rd divider resistance is R4.
In specific implementation process, in charging process, the external High Level AC Voltage of primary side of transformer B, such as external 220V alternating current.After step-down, the secondary end of transformer B exports the input of low-voltage AC to rectifier bridge 1N4001.After rectification process, the output of rectifier bridge 1N4001 exports low-voltage DC.It is pointed out that this low-voltage DC on the one hand as the internal electric source of charging indication, on the other hand as the charge power supply of external charge load.
Further, after the output output low-voltage DC of rectifier bridge 1N4001, the first indicator light D1 is luminous, and cue circuit accesses external power supply, i.e. above-mentioned High Level AC Voltage.
Further, in subsequent charge process:
When the voltage of external charge load is not higher than predetermined threshold value, namely during charging load underfill electricity, the low-voltage DC that the output of rectifier 1N4001 exports is not enough to puncture voltage stabilizing didoe D4, voltage stabilizing didoe D4 is equivalent to open circuit, and the voltage of the collector electrode of triode Q1 is the cathode voltage of low-voltage DC, is obviously greater than the voltage of the base stage of triode Q1, and then triode Q1 conducting, thus the second indicator light D2 is luminous, the load of prompting external charge is current still in charging, and its electricity is not yet full of.
When the voltage of external charge load is higher than predetermined threshold value, namely when charging load has been full of electricity, the voltage of low-voltage DC will raise, and then puncture described voltage stabilizing didoe D4, the voltage of the collector electrode of triode Q1 equals the reverse breakdown voltage of voltage stabilizing didoe D4, wherein, the reverse breakdown voltage of the voltage stabilizing didoe D4 chosen is less than the base voltage of triode Q1, namely the collector voltage of triode Q1 is less than base voltage, and then triode Q1 not conducting, thus the second indicator light D2 is not luminous, the electricity of prompting external charge load is full of.
The embodiment of the present invention is in charging process, the access state of external power supply is pointed out by the light on and off state of the first indicator light, and utilize the reverse breakdown characteristics of voltage stabilizing didoe and the switching characteristic of triode, light on and off state in conjunction with the second indicator light points out the charged state of charging load, improves Consumer's Experience.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. a charging indication, is characterized in that, described circuit comprises the first indicator light, the first divider resistance, triode, the second indicator light and voltage stabilizing didoe, wherein:
The positive pole of the anode access low-voltage DC of described first indicator light, the negative pole of the negative electrode access low-voltage DC of described first indicator light, the positive pole of one end access low-voltage DC of described first divider resistance, the other end of described first divider resistance is connected with the base stage of described triode, the positive pole of the collector electrode access low-voltage DC of described triode, the negative electrode of described voltage stabilizing didoe is connected with the collector electrode of described triode, the negative pole of the anode access low-voltage DC of described voltage stabilizing didoe, the emitter of described triode is connected with the anode of described second indicator light, the negative pole of the negative electrode access low-voltage DC of described second indicator light, described low-voltage DC is used for charging to external charge load.
2. charging indication as claimed in claim 1, it is characterized in that, described circuit also comprises transformer and rectifier bridge, the secondary end of described transformer is connected with the input of described rectifier bridge, the positive pole of the output of described rectifier bridge is connected with the anode of described first indicator light, one end of described first divider resistance and the collector electrode of described triode, and the negative pole of the output of described rectifier bridge is connected with the anode of the negative electrode of described first indicator light, the base stage of described triode and described voltage stabilizing didoe.
3. charging indication as claimed in claim 2, it is characterized in that, when the external High Level AC Voltage of the primary side of described transformer, the secondary end of described transformer exports the input of low-voltage AC to described rectifier bridge, and the output of described rectifier bridge exports described low-voltage DC.
4. charging indication as claimed in claim 3, is characterized in that, after the output of described rectifier bridge exports described low-voltage DC, described first indicator light is luminous, wherein:
When the voltage of external charge load is not higher than predetermined threshold value, the undertension of described low-voltage DC is to puncture described voltage stabilizing didoe, and then the collector voltage of described triode is greater than base voltage, described triode ON, thus described second indicator light is luminous;
When the voltage of external charge load is higher than described predetermined threshold value, the voltage of described low-voltage DC will puncture described voltage stabilizing didoe, and then the collector voltage of described triode is less than base voltage, the not conducting of described triode, thus described second indicator light is not luminous.
5. charging indication as claimed in claim 1, it is characterized in that, described circuit also comprises filter capacitor, the positive pole of the anode access low-voltage DC of described filter capacitor, the negative pole of the negative electrode access low-voltage DC of described filter capacitor.
6. charging indication as claimed in claim 1, it is characterized in that, described circuit also comprises diode, the positive pole of the anode access low-voltage DC of described diode.
7. charging indication as claimed in claim 1, it is characterized in that, described circuit also comprises current-limiting resistance,
The positive pole of the anode access low-voltage DC of described first indicator light comprises:
The anode of described first indicator light accesses the positive pole of low-voltage DC by described current-limiting resistance.
8. charging indication as claimed in claim 1, it is characterized in that, described circuit also comprises the second divider resistance, and one end of described second divider resistance is connected with the base stage of described triode, the negative pole of the other end access low-voltage direct of described second divider resistance.
9. charging indication as claimed in claim 1, it is characterized in that, described circuit also comprises the 3rd divider resistance,
The positive pole of the collector electrode access low-voltage DC of described triode comprises:
The collector electrode of described triode accesses the positive pole of low-voltage DC by described 3rd divider resistance.
10. charging indication as claimed in claim 1, it is characterized in that, the model of described rectifier bridge is 1N4001.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013255.1A CN104779653A (en) | 2014-01-10 | 2014-01-10 | Charging indicating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013255.1A CN104779653A (en) | 2014-01-10 | 2014-01-10 | Charging indicating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104779653A true CN104779653A (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410013255.1A Pending CN104779653A (en) | 2014-01-10 | 2014-01-10 | Charging indicating circuit |
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| CN (1) | CN104779653A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231014A (en) * | 2016-09-20 | 2017-10-03 | 华为技术有限公司 | A kind of charging circuit, terminal and charging system |
| CN113933716A (en) * | 2021-09-29 | 2022-01-14 | 深圳市昂佳科技有限公司 | Ultra-low standby power consumption nanoamp wide voltage range LED battery power indicating system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741124A (en) * | 2010-01-25 | 2010-06-16 | 海洋王照明科技股份有限公司 | Battery charging circuit and power supply device |
| CN101997332A (en) * | 2009-08-20 | 2011-03-30 | 侯伟萍 | Simple charger circuit of electric vehicle |
| CN103187778A (en) * | 2011-12-28 | 2013-07-03 | 海洋王照明科技股份有限公司 | Charging circuit and charger |
-
2014
- 2014-01-10 CN CN201410013255.1A patent/CN104779653A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997332A (en) * | 2009-08-20 | 2011-03-30 | 侯伟萍 | Simple charger circuit of electric vehicle |
| CN101741124A (en) * | 2010-01-25 | 2010-06-16 | 海洋王照明科技股份有限公司 | Battery charging circuit and power supply device |
| CN103187778A (en) * | 2011-12-28 | 2013-07-03 | 海洋王照明科技股份有限公司 | Charging circuit and charger |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231014A (en) * | 2016-09-20 | 2017-10-03 | 华为技术有限公司 | A kind of charging circuit, terminal and charging system |
| CN107231014B (en) * | 2016-09-20 | 2019-02-19 | 华为技术有限公司 | A kind of charging circuit, terminal and charging system |
| US10819127B2 (en) | 2016-09-20 | 2020-10-27 | Huawei Technologies Co., Ltd. | Charging circuit, terminal, and charging system |
| CN113933716A (en) * | 2021-09-29 | 2022-01-14 | 深圳市昂佳科技有限公司 | Ultra-low standby power consumption nanoamp wide voltage range LED battery power indicating system |
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Application publication date: 20150715 |
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