CN203931148U - Dual power supply remote control circuitry - Google Patents
Dual power supply remote control circuitry Download PDFInfo
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- CN203931148U CN203931148U CN201420300993.XU CN201420300993U CN203931148U CN 203931148 U CN203931148 U CN 203931148U CN 201420300993 U CN201420300993 U CN 201420300993U CN 203931148 U CN203931148 U CN 203931148U
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Abstract
The utility model relates to a kind of dual power supply remote control circuitry, comprise: adopt single-chip microcomputer, feed circuit, infrared transmitting circuit, low-frequency clock circuit that model is SH66P51A, wherein, the pin 14 of described single-chip microcomputer connects the power supply output terminal of described feed circuit, the pin 15 of described single-chip microcomputer connects described infrared transmitting circuit, and the pin 12 of described single-chip microcomputer is connected described low-frequency clock circuit with pin 13.Wherein, described feed circuit comprise ac power circuit and battery feed circuit, and the output terminal of described ac power circuit connects described single-chip microcomputer, and the output terminal of described battery feed circuit connects described single-chip microcomputer.Adopt this device, realized two kinds of power supply modes of telepilot, this circuit structure is simple, with low cost, greatly facilitates user's use.
Description
Technical field
The utility model belongs to telepilot field, relates in particular to the remote control circuitry of dual power supply.
Background technology
Existing telepilot, adopts powered battery mostly, can carry, and the trouble of then bringing is exactly easily to lose, and especially the telepilot in hotel, is more prone to lose.The problem of easily losing in order to solve telepilot, generally hangs telepilot on the wall, only adopts powered battery or only adopts Power supply, when telepilot breaks down or need to change power supply, just to user, brings inconvenience.And existing power supply circuit construction is more complicated, cost is relatively high.
Therefore, how solving the deficiency that above-mentioned prior art exists, is the problem that the utility model is mainly studied.
Summary of the invention
The purpose of this utility model is to provide a kind of remote control circuitry, simplify feed circuit, adopt simple circuit structure, cheap circuit cost, realize alternating current and galvanic duplicate supply, both can realize mains powered, the in the situation that of mains supply power-off, can realize powered battery again, facilitated user's use.
For achieving the above object, the utility model provides a kind of dual power supply remote control circuitry, comprise: adopt single-chip microcomputer, feed circuit, infrared transmitting circuit, low-frequency clock circuit that model is SH66P51A, the pin 14 of described single-chip microcomputer connects the power supply output terminal of described feed circuit, the pin 15 of described single-chip microcomputer connects described infrared transmitting circuit, and the pin 12 of described single-chip microcomputer is connected described low-frequency clock circuit with pin 13;
Described feed circuit comprise ac power circuit and battery feed circuit, and the output terminal of described ac power circuit connects the electrical input that supplies of described single-chip microcomputer, and the described single-chip microcomputer of the same connection of output terminal of described battery feed circuit is for electrical input;
Described ac power circuit adopts Switching Power Supply step-down power supply circuit, and described Switching Power Supply step-down power supply circuit comprises DC-DC switching power source chip, switch transformer, low-voltage output rectification circuit, secondary reduction voltage circuit and the output feedback circuit of the first bridge rectifier circuit, VIP12A model;
Wherein, alternating current connects described the first bridge rectifier circuit by a current limliting overvoltage crowbar, the output terminal of described the first bridge rectifier circuit connects pin 5, pin 6, pin 7 and the pin 8 of described DC-DC switching power source chip, connects pin 3 and the pin 4 of described switch transformer simultaneously;
The pin 1 of described DC-DC switching power source chip and pin 2 ground connection, pin 3 is by the first capacity earth, and pin 4 connects the pin 1 of described switch transformer;
Pin 2 ground connection of described switch transformer, pin 1 is successively by fast recovery diode, the first resistance and the first polar capacitor ground connection of series connection, and the pin 5 of described switch transformer is connected the input end of described low-voltage output rectification circuit with pin 6;
Described low-voltage output rectification circuit comprises the second polar capacitor, inductance, the second resistance, the 3rd polar capacitor and the 3rd resistance, described inductance one end is in parallel with the second polar capacitor, the other end is in parallel with the second resistance, and then in parallel with the 3rd polar capacitor and the 3rd resistance respectively, the output terminal of described low-voltage output rectification circuit connects described secondary reduction voltage circuit;
Described secondary reduction voltage circuit comprises the first voltage stabilizing chip that employing model is LM1117-3.3, the output terminal of described low-voltage output rectification circuit connects respectively input end and the earth terminal of described the first voltage stabilizing chip, quadripolarity electric capacity in parallel between the output and ground of described the first voltage stabilizing chip, described the first voltage stabilizing chip output connects the pin 14 of described single-chip microcomputer through commutation diode;
Described output feedback circuit comprises photoelectrical coupler, and the pin 1 of described photoelectrical coupler is by the 4th resistance and voltage stabilizing diode ground connection, and pin 2 is by described voltage stabilizing diode ground connection; The pin 4 of described photoelectrical coupler connects the pin 3 of described DC-DC switching power source chip, and the pin 3 of described photoelectrical coupler connects the pin 4 of described DC-DC switching power source chip;
Described battery charger adopts powered battery, and by isolating diode, connects the pin 14 of described single-chip microcomputer.
Related content in technique scheme is explained as follows:
1, in technique scheme, described ac power circuit adopts transformer pressure-reducing feed circuit, and described transformer pressure-reducing feed circuit comprise AC-AC transformer, the second bridge rectifier circuit, reduction voltage circuit successively; Wherein, alternating current connects the input end of described AC-AC transformer by current-limiting protection circuit; the output terminal of described AC-AC transformer connects the input end of described the second bridge rectifier circuit; the output terminal of described the second bridge rectifier circuit connects the input end of described reduction voltage circuit, and the output terminal of reduction voltage circuit connects the pin 14 of described single-chip microcomputer.
2, in technique scheme, described battery charger comprises battery, isolating diode, the second electric capacity and the 7th polar capacitor, described battery is connected with described isolating diode, again with described the second capacitances in series, the 7th polar capacitor is connected in parallel on the two ends of described the second electric capacity, and one end ground connection of the 7th polar capacitor, the other end connects the pin 14 of described single-chip microcomputer as the output terminal of battery charger.
The utility model principle, design and effect are as follows: the utility model is by alternating current and convert the galvanic circuit to telepilot power supply to and adopt battery and convert voltage described in telepilot to and integrate to the circuit of telepilot power supply, adopt simple circuit structure, realized two kinds of power supply modes of telepilot.Wherein, battery feed circuit and alternating current electricity feed circuit are also deposited, and adopt isolating diode D5 that difference is powered and selected respectively: when alternating current breakpoint, alternating current output terminal is 0V, battery feed circuit just, by the forward conduction characteristic of isolating diode D5, is powered to telepilot; When having Alternating Current Power Supply, the electricity that the step-down of alternating current electricity is got off can be higher than cell voltage, and due to the characteristic of the reverse not conducting of isolating diode D5, now, battery is not powered, and telepilot is just selected AC-powered.Due to the existence of isolating diode D5, Alternating Current Power Supply can not clash with powered battery.
Due to the application of technique scheme, the utlity model has following advantage:
1, the utility model adopts simple circuit structure, cheap circuit cost, and AC-powered and powered battery are integrated to the power supply for telepilot, has realized two kinds of modes of telepilot and has powered, and greatly facilitates user's use.
2, the utility model circuit structure is simple, with low cost, and reliability is high.
Accompanying drawing explanation
1, accompanying drawing 1 is the circuit theory diagrams of telepilot in the utility model embodiment;
2, accompanying drawing 2 is the utility model ac power circuit employing Switching Power Supply pressure drop power supply the principle figure;
3, accompanying drawing 3 is the powered battery schematic diagram of telepilot in the utility model embodiment;
4, accompanying drawing 4 is the utility model ac power circuit employing transformer pressure-reducing power supply the principle figure.
In above accompanying drawing: 1, the first bridge rectifier circuit; 2, low-voltage output rectification circuit; 3, secondary reduction voltage circuit; 4, output feedback circuit; U1, single-chip microcomputer; U2, DC-DC switching power source chip; U3, photoelectrical coupler; U4, the first voltage stabilizing chip; U5 the second voltage stabilizing chip, C01, the first electric capacity; C02, the second electric capacity; C03, the 3rd electric capacity; C04, the 4th electric capacity; C1, the first polar capacitor, C2, the second polar capacitor; C3, the 3rd polar capacitor; C4, quadripolarity electric capacity; C5, the 5th polar capacitor; C6, the 6th polar capacitor; C7, the 7th polar capacitor; R1, the first resistance; R2, the second resistance; R3, the 3rd resistance; R4, the 4th resistance; R5, the 5th resistance; D1, fast recovery diode; D2, voltage stabilizing diode; D3, the first commutation diode; D4, the second commutation diode; D5, isolating diode; D6, infrared-emitting diode, T1, switch transformer; T2, AC-AC transformer; BATTERY, battery.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment 1: a kind of dual power supply remote control circuitry
Shown in accompanying drawing 1, a kind of dual power supply remote control circuitry, comprising: adopt single-chip microcomputer, feed circuit, infrared transmitting circuit, low-frequency clock circuit that model is SH66P51A.The pin 14 of described single-chip microcomputer connects the power supply output terminal of described feed circuit; The pin 15 of described single-chip microcomputer connects described infrared transmitting circuit, and the pin 15 of described single-chip microcomputer passes through the base stage of the 5th resistance R 5 connecting triode Q1, the grounded emitter of triode Q1, and the collector of triode Q1 connects power supply by light emitting diode D6; The pin 12 of described single-chip microcomputer U1 is connected described low-frequency clock circuit with pin 13, the pin 12 of described single-chip microcomputer U1 is by the 3rd capacitor C 03 ground connection, pin 13, by the 4th capacitor C 04 ground connection, connects by crystal oscillator X1 between the pin 12 of described single-chip microcomputer and pin 13.
Described feed circuit comprise ac power circuit and battery feed circuit, and the output terminal of described ac power circuit connects described single-chip microcomputer U1, and the output terminal of described battery feed circuit connects described single-chip microcomputer U1;
Shown in accompanying drawing 2, described ac power circuit adopts Switching Power Supply step-down power supply circuit, and described Switching Power Supply step-down power supply circuit comprises DC-DC switching power source chip U2, switch transformer T1, low-voltage output rectification circuit 2, secondary reduction voltage circuit 3 and the output feedback circuit 4 of the first bridge rectifier circuit 1, VIP12A model;
Wherein, the alternating current of 220V connects described the first bridge rectifier circuit 1 by a current limliting overvoltage crowbar; the output terminal of described the first bridge rectifier circuit 1 connects pin 5, pin 6, pin 7 and the pin 8 of described DC-DC switching power source chip U2, connects pin 3 and the pin 4 of described switch transformer T1 simultaneously.
The pin 1 of described DC-DC switching power source chip U2 and pin 2 ground connection, pin 3 is by the first capacitor C 01 ground connection, and pin 4 connects the pin 1 of described switch transformer;
Pin 2 ground connection of described switch transformer T1, pin 1 is by fast recovery diode D1, the first resistance R 1 and the first polar capacitor C1 ground connection connected successively, and the pin 5 of described switch transformer is connected the input end of described low-voltage output rectification circuit 2 with pin 6.
Described low-voltage output rectification circuit 2 comprises the second polar capacitor C2, inductance L 1, the second resistance R 2, the 3rd polar capacitor C3 and the 3rd resistance R 3, described inductance L 1 one end is in parallel with described the second polar capacitor C2, the other end is in parallel with the second resistance R 2, and then in parallel with the 3rd polar capacitor C3 and the 3rd resistance R 3 respectively, the output terminal of described low-voltage output rectification circuit 2 connects described secondary reduction voltage circuit 3.
Described secondary reduction voltage circuit 3 comprises the first voltage stabilizing chip U4 that employing model is LM1117-3.3, the output terminal of described low-voltage output rectification circuit 2 connects respectively input end Vin and the earth terminal GND of described the first voltage stabilizing chip U4, quadripolarity capacitor C 4 in parallel between the output end vo ut of described the first voltage stabilizing chip U4 and earth terminal GND, described the first voltage stabilizing chip U4 output terminal connects the pin 14 of described single-chip microcomputer U1 through the first commutation diode D3.
Described output feedback circuit 4 comprises photoelectrical coupler U3, and the pin 1 of described photoelectrical coupler U3 is by the 4th resistance R 4 and voltage stabilizing diode D2 ground connection, and pin 2 is by described D2 voltage stabilizing diode ground connection; The pin 4 of described photoelectrical coupler U3 connects the pin 3 of described DC-DC switching power source chip U2, and the pin 3 of described photoelectrical coupler U3 connects the pin 4 of described DC-DC switching power source chip U2.
Shown in accompanying drawing 3, described battery charger comprises battery BATTERY, isolating diode D5, the second capacitor C 02 and the 7th polar capacitor C7, wherein battery BATTERY can adopt 3V button cell, or No. 5 batteries of 2 joints, or No. 7 batteries of 2 joints, described battery BATTERY connects with described isolating diode D5, connect with described the second capacitor C 02 again, the 7th polar capacitor C7 is connected in parallel on the two ends of described the second capacitor C 02, and one end ground connection of the 7th polar capacitor C7, the other end connects the pin 14 of described single-chip microcomputer U1 as the output terminal of battery charger.
Wherein, above-mentioned battery feed circuit and alternating current electricity feed circuit are also deposited, and adopt isolating diode D5 that difference is powered and selected respectively: when alternating current breakpoint, alternating current output terminal is 0V, battery feed circuit just, by the forward conduction characteristic of isolating diode D5, is powered to telepilot; When having Alternating Current Power Supply, the electricity that the step-down of alternating current electricity is got off can be higher than cell voltage, and due to the characteristic of the reverse not conducting of isolating diode D5, now, battery is not powered, and telepilot is just selected AC-powered.Due to the existence of isolating diode D5, Alternating Current Power Supply can not clash with powered battery.
Embodiment 2, shown in accompanying drawing 4, all the other are identical with embodiment 1, and difference is, described ac power circuit adopts transformer pressure-reducing feed circuit, and described transformer pressure-reducing feed circuit comprise AC-AC transformer T2, the second bridge rectifier circuit, reduction voltage circuit, wherein, alternating current connects the input end of described AC-AC transformer T2 by current-limiting protection circuit, the output terminal of described AC-AC transformer T2 connects the second bridge rectifier circuit input end, the output terminal of the second bridge rectifier circuit connects reduction voltage circuit, described reduction voltage circuit adopts the second voltage stabilizing chip U5 that model is LM1117-3.3, the output terminal of described the second bridge rectifier circuit connects respectively input end Vin and the earth terminal GND of described the second voltage stabilizing chip U5 by the 5th polar capacitor C5 of parallel connection, sextupole capacitor C 6 in parallel between the output end vo ut of described the second voltage stabilizing chip U5 and earth terminal GND, the output terminal of described reduction voltage circuit connects the pin 14 of described single-chip microcomputer U1 by the second commutation diode D4.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (2)
1. a dual power supply remote control circuitry, comprise: adopt single-chip microcomputer, feed circuit, infrared transmitting circuit, low-frequency clock circuit that model is SH66P51A, the pin 14 of described single-chip microcomputer connects the power supply output terminal of described feed circuit, the pin 15 of described single-chip microcomputer connects described infrared transmitting circuit, and the pin 12 of described single-chip microcomputer is connected described low-frequency clock circuit with pin 13; It is characterized in that:
Described feed circuit comprise ac power circuit and battery feed circuit, and the output terminal of described ac power circuit connects the electrical input that supplies of described single-chip microcomputer, and the described single-chip microcomputer of the same connection of output terminal of described battery feed circuit is for electrical input;
Described ac power circuit adopts Switching Power Supply step-down power supply circuit, and described Switching Power Supply step-down power supply circuit comprises DC-DC switching power source chip, switch transformer, low-voltage output rectification circuit, secondary reduction voltage circuit and the output feedback circuit of the first bridge rectifier circuit, VIP12A model;
Wherein, alternating current connects described the first bridge rectifier circuit by a current limliting overvoltage crowbar, the output terminal of described the first bridge rectifier circuit connects pin 5, pin 6, pin 7 and the pin 8 of described DC-DC switching power source chip, connects pin 3 and the pin 4 of described switch transformer simultaneously;
The pin 1 of described DC-DC switching power source chip and pin 2 ground connection, pin 3 is by the first capacity earth, and pin 4 connects the pin 1 of described switch transformer;
Pin 2 ground connection of described switch transformer, pin 1 is successively by fast recovery diode, the first resistance and the first polar capacitor ground connection of series connection, and the pin 5 of described switch transformer is connected the input end of described low-voltage output rectification circuit with pin 6;
Described low-voltage output rectification circuit comprises the second polar capacitor, inductance, the second resistance, the 3rd polar capacitor and the 3rd resistance, described inductance one end is in parallel with the second polar capacitor, the other end is in parallel with the second resistance, and then in parallel with the 3rd polar capacitor and the 3rd resistance respectively, the output terminal of described low-voltage output rectification circuit connects described secondary reduction voltage circuit;
Described secondary reduction voltage circuit comprises the first voltage stabilizing chip that employing model is LM1117-3.3, the output terminal of described low-voltage output rectification circuit connects respectively input end and the earth terminal of described the first voltage stabilizing chip, quadripolarity electric capacity in parallel between the output and ground of described the first voltage stabilizing chip, described the first voltage stabilizing chip output connects the pin 14 of described single-chip microcomputer through commutation diode;
Described output feedback circuit comprises photoelectrical coupler, and the pin 1 of described photoelectrical coupler is by the 4th resistance and voltage stabilizing diode ground connection, and pin 2 is by described voltage stabilizing diode ground connection; The pin 4 of described photoelectrical coupler connects the pin 3 of described DC-DC switching power source chip, and the pin 3 of described photoelectrical coupler connects the pin 4 of described DC-DC switching power source chip;
Described battery charger adopts powered battery, and by isolating diode, connects the pin 14 of described single-chip microcomputer.
2. dual power supply remote control circuitry according to claim 1, it is characterized in that: described ac power circuit adopts transformer pressure-reducing feed circuit, and described transformer pressure-reducing feed circuit comprise AC-AC transformer, the second bridge rectifier circuit, reduction voltage circuit successively; Wherein, alternating current connects the input end of described AC-AC transformer by current-limiting protection circuit; the output terminal of described AC-AC transformer connects the input end of described the second bridge rectifier circuit; the output terminal of described the second bridge rectifier circuit connects the input end of described reduction voltage circuit, and the output terminal of reduction voltage circuit connects the pin 14 of described single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300993.XU CN203931148U (en) | 2014-06-06 | 2014-06-06 | Dual power supply remote control circuitry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300993.XU CN203931148U (en) | 2014-06-06 | 2014-06-06 | Dual power supply remote control circuitry |
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| Publication Number | Publication Date |
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| CN203931148U true CN203931148U (en) | 2014-11-05 |
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| CN201420300993.XU Expired - Fee Related CN203931148U (en) | 2014-06-06 | 2014-06-06 | Dual power supply remote control circuitry |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464260A (en) * | 2014-12-05 | 2015-03-25 | 深圳市创荣发电子有限公司 | Short distance based remote controller pairing method and remote controller pairing circuit |
-
2014
- 2014-06-06 CN CN201420300993.XU patent/CN203931148U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464260A (en) * | 2014-12-05 | 2015-03-25 | 深圳市创荣发电子有限公司 | Short distance based remote controller pairing method and remote controller pairing circuit |
| CN104464260B (en) * | 2014-12-05 | 2018-01-05 | 深圳市创荣发电子有限公司 | Based on short-range remote control matching method and remote control pairing circuit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: On the east side of Wujiang Long Bridge Road Development Zone in Suzhou City, Jiangsu province 215211 Patentee after: JIANGSU QUNDA INTELLIGENT TECHNOLOGY CO., LTD. Address before: Wuzhong Economic Development Zone in Suzhou City, Jiangsu province 215128 Tian River Road No. 103 Patentee before: Qunda Electronics Co., Ltd., Suzhou |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20210606 |