CN103066669B - A kind of wireless microphone charging base circuit and charging method - Google Patents
A kind of wireless microphone charging base circuit and charging method Download PDFInfo
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- CN103066669B CN103066669B CN201310042196.6A CN201310042196A CN103066669B CN 103066669 B CN103066669 B CN 103066669B CN 201310042196 A CN201310042196 A CN 201310042196A CN 103066669 B CN103066669 B CN 103066669B
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Abstract
The present invention proposes a kind of wireless microphone charging base circuit and charging method, described circuit comprises charge coil and the charging circuit board of electrical connection; Described charging circuit board is provided with control chip, described control chip is connected with power supply module, charging circuit and induction charging module.The present invention adopts non-contact type wireless charging technique to the charging of wireless microphone battery, can reduce the human cost that detachable charging modes brings, and can auto-breaking energy savings, extends the useful life of battery; Also the potential faults that contact reed charging modes brings can be stopped completely.
Description
Technical field
The present invention relates to electricity field, refer to a kind of wireless microphone charging base circuit and charging method especially.
Background technology
Current wireless microphone battery on the market has two kinds of charging modes.One is split out from microphone by battery, utilizes seat to be charged into row charging.Such charging needs microphone and battery to split, troublesome poeration; And after battery is full of electricity, is also difficult to accomplish timely deenergization, not only causes the waste of the energy, also can shorten the useful life of battery.Another kind of charging modes is contact charging, the general contact reed power taking by microphone hand holding handle bottom, and this reed is after this multiple use, or gets rusty easily in the middle of the environment of humidity, thus initiating failure.
Above problem is all because the design defect of the charging modes of wireless microphone battery causes.The energy waste brought due to the charge mode that wireless microphone battery is traditional and be easy to initiating failure, is therefore necessary to improve its charge mode.
Summary of the invention
The present invention proposes a kind of wireless microphone charging base circuit and charging method, solves the energy waste that traditional charging method is brought and the problem being easy to initiating failure.
Technical scheme of the present invention is achieved in that
A kind of wireless microphone charging base circuit, described circuit comprises charge coil and the charging circuit board of electrical connection; Described charging circuit board is provided with control chip, described control chip is connected with power supply module, charging circuit and induction charging module.
Preferably, described control chip is chip STC11F04, and described charging circuit comprises filtration module and driver module, and the charging pin of described control chip is by described filtration module and driver module and described induction charging model calling.
Preferably, described driver module comprises amplifier Q2, amplifier Q3 and the amplifier Q4 of electrical connection.
Preferably, described control chip is connected with charging indicator light.
Preferably, the method judges whether by the voltage that the charging valve feel of control chip is answered the wireless charging electric wave sending fixed frequency, is if so, then charged to inductive microphone by induction coil.
Preferably, described control chip is chip STC11F04, and described charging pin is connected with described induction coil with driver module by filtration module.
Preferably, described charging pin detects 5 volts of high level of lasting more than 10 seconds, then no longer send the wireless charging electric wave of fixed frequency, stops charging.
The present invention adopts contactless wireless charging technology to the charging of wireless microphone battery, has following beneficial effect:
1. reduce the human cost that detachable charging modes brings;
2. automatically can disconnect charge mode after charging, stop charging, energy savings, also extends the useful life of battery;
3. can stop the potential faults that contact reed charging modes brings completely.
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 perspective structure schematic diagram of a kind of wireless microphone charging base of the present invention preferred embodiment;
Fig. 2 is the plan structure schematic diagram of the charging base of wireless microphone shown in Fig. 1 preferred embodiment;
Fig. 3 is the circuit theory diagrams of wireless microphone charging base charging circuit board of the present invention.
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.
As depicted in figs. 1 and 2, wireless microphone charging base of the present invention comprises housing 1, described housing 1 is provided with the charging slot 2 of grafting wireless microphone, and described charging slot 2 is around with charge coil 3, and described charge coil 3 is connected with charging circuit board 4.Described charging circuit board 4 is also connected with an external power supply jack 5, to access external power supply.Namely charge coil 3 in Fig. 1 is the coil L1 in Fig. 3.
When the hand holding handle of wireless microphone is inserted in wireless microphone charging base of the present invention, the charge coil 3 in wireless microphone charging base and the induction coil in wireless microphone, by responding to generation current, charge to the battery in wireless microphone.
Charging circuit board 4 is provided with wireless microphone charging base circuit, described circuit comprises charge coil and the charging circuit board of electrical connection; Described charging circuit board is provided with control chip, described control chip is connected with power supply module, charging circuit and induction charging module.As shown in Figure 3, in a preferred embodiment of the invention, described control chip is chip STC11F04, and described charging circuit comprises filtration module and driver module, and the charging pin of described control chip is by described filtration module and driver module and described induction charging model calling.Because control chip STC11F04 is existing product, its each pin definitions see its databook, can not repeat them here.
Described filtration module comprises components and parts E2 and C7, is connected with the VCC pin of control chip STC11F04, and a main power supply filter action, LED3-R is charging indicator light.Described driver module comprises amplifier Q2, amplifier Q3 and the amplifier Q4 of electrical connection.Because control chip STC11F04 electric current out and voltage are all little, therefore driver module need be increased between control chip STC11F04 and coil L1, i.e. the component circuit such as illustrated amplifier Q2, Q3, Q4.
The charging method of wireless microphone charging base of the present invention judges whether by the voltage that the charging valve feel of control chip is answered the wireless charging electric wave sending fixed frequency, is if so, then charged to inductive microphone by induction coil.In the present embodiment, charging pin is the P10 pin of chip STC11F04, this pin is connected with described induction coil with driver module (i.e. amplifier Q2, amplifier Q3 and amplifier Q4 part) by filtration module (i.e. components and parts E2 and C7 part), and charge coil 3 i.e. described induction coil.
Described control chip can control following charge mode: when the battery of wireless microphone is full of electricity or wireless microphone hand holding handle leaves charging base, and charging base of the present invention can stop charging automatically.In conjunction with illustrated circuit diagram, its detailed process is: when the battery of wireless microphone is full of electricity, the P10 pin of control chip STC11F04 can detect 5 volts of high level of long period, then control chip STC11F04 is set to 0 volt of low level P10, charge coil 3 no longer sends the radio wave of fixed frequency, stops charging; When wireless microphone hand holding handle leaves charging base, the P10 pin of control chip STC11F04 also can detect long 5 volts of high level, then control chip STC11F04 is also set to 0 volt of level P10, and namely coil no longer sends the radio wave of fixed frequency, and charging process will be interrupted automatically.The described long period can set as the case may be, can be set as 10 seconds in the present embodiment, if more than 10 seconds, then judges not need charging, then no longer sends the wireless charging electric wave of fixed frequency, stop charging.
Described housing 1 is also provided with charge switch 6.To control the break-make of charging circuit.Described housing 1 is also provided with the charging slot of multiple grafting wireless microphone, namely can fills multiple wireless microphone simultaneously and charging indicator light is set in the side of each charging slot, to show the charged state of each wireless microphone respectively.
The present invention adopts non-contact type wireless charging technique to the charging of wireless microphone battery, can reduce the human cost that detachable charging modes brings, and can auto-breaking energy savings, extends the useful life of battery; Also the potential faults that contact reed charging modes brings can be stopped completely.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a wireless microphone charging base circuit, is characterized in that, described circuit comprises charge coil and the charging circuit board of electrical connection; Described charging circuit board is provided with control chip, described control chip is connected with power supply module, charging indicator light, charging circuit and induction charging module; Wireless microphone charging base comprises housing, housing is provided with charge switch, described control chip is chip STC11F04, described charging circuit comprises filtration module and driver module, and the charging pin of described control chip is by described filtration module and driver module and described induction charging model calling; Charging pin is the P10 pin of chip STC11F04; Described filtration module comprises capacitor E2 and capacitor C7; Described driver module comprises amplifier Q2, amplifier Q3 and the amplifier Q4 of electrical connection; Amplifier Q2 is NPN type, amplifier Q3 is NPN type, amplifier Q4 is positive-negative-positive; The base stage of amplifier Q2 is connected to the charging pin of control chip, and the collector electrode of amplifier Q2 is connected to DC power supply, the grounded emitter of amplifier Q2; The collector electrode of amplifier Q3 is connected to DC power supply, and the base stage of amplifier Q3 is connected to the collector electrode of amplifier Q2, and the emitter of amplifier Q3 is connected to the first end connection of the induction coil of induction charging module; The emitter of amplifier Q4 is connected with the emitter of amplifier Q3, and the base stage of amplifier Q4 is connected with the base stage of amplifier Q3, the grounded collector of amplifier Q4; Second end of the induction coil of induction charging module is connected with DC power supply.
2. the charging method of a wireless microphone charging base, it is characterized in that, the method judges whether by the voltage that the charging valve feel of control chip is answered the wireless charging electric wave sending fixed frequency, and control chip is chip STC11F04, and charging pin is the P10 pin of chip STC11F04; If so, then by induction coil, wireless microphone is charged; Described charging pin is connected with described induction coil with driver module by filtration module, and described filtration module comprises capacitor E2 and capacitor C7; Described driver module comprises amplifier Q2, amplifier Q3 and the amplifier Q4 of electrical connection; Amplifier Q2 is NPN type, amplifier Q3 is NPN type, amplifier Q4 is positive-negative-positive; The base stage of amplifier Q2 is connected to the charging pin of control chip, and the collector electrode of amplifier Q2 is connected to DC power supply, the grounded emitter of amplifier Q2; The collector electrode of amplifier Q3 is connected to DC power supply, and the base stage of amplifier Q3 is connected to the collector electrode of amplifier Q2, and the emitter of amplifier Q3 is connected to the first end connection of the induction coil of induction charging module; The emitter of amplifier Q4 is connected with the emitter of amplifier Q3, and the base stage of amplifier Q4 is connected with the base stage of amplifier Q3, the grounded collector of amplifier Q4; Second end of the induction coil of induction charging module is connected with DC power supply.
3. the charging method of wireless microphone charging base as claimed in claim 2, it is characterized in that, described charging pin detects 5 volts of high level of lasting more than 10 seconds, then no longer send the wireless charging electric wave of fixed frequency, stops charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310042196.6A CN103066669B (en) | 2013-01-31 | 2013-01-31 | A kind of wireless microphone charging base circuit and charging method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310042196.6A CN103066669B (en) | 2013-01-31 | 2013-01-31 | A kind of wireless microphone charging base circuit and charging method |
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| CN103066669A CN103066669A (en) | 2013-04-24 |
| CN103066669B true CN103066669B (en) | 2016-04-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618826A (en) * | 2015-02-17 | 2015-05-13 | 刘礼刚 | Wireless-charging microphone and microphone base |
| CN106356950A (en) * | 2016-10-25 | 2017-01-25 | 深圳市和宏实业股份有限公司 | Portable charger |
| CN108448734B (en) * | 2018-02-05 | 2020-08-18 | 宁波力芯科信息科技有限公司 | Mobile phone charging base for KTV and implementation method |
| CN109348325A (en) * | 2018-10-22 | 2019-02-15 | 深圳市索菱通信技术有限公司 | A kind of wireless charging base of microphone |
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| CN101820182A (en) * | 2010-04-14 | 2010-09-01 | 浙江工业大学 | Wireless charging device |
| CN201975844U (en) * | 2011-04-29 | 2011-09-14 | 彭玉平 | Wireless charger |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656576U (en) * | 2010-03-12 | 2010-11-24 | 富达通科技股份有限公司 | Variable-frequency wireless powering and charging device |
| CN202513680U (en) * | 2012-03-31 | 2012-10-31 | 罗袁生 | Launching device, receiving device, mobile phone battery and mobile phone |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820182A (en) * | 2010-04-14 | 2010-09-01 | 浙江工业大学 | Wireless charging device |
| CN201975844U (en) * | 2011-04-29 | 2011-09-14 | 彭玉平 | Wireless charger |
Non-Patent Citations (1)
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| 一种简单的IGBT驱动和过流保护电路;王永 等;《电测与仪表》;20040430;第41卷(第460期);25-27 * |
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