CN208673516U - A kind of low cost infrared remote controller - Google Patents
A kind of low cost infrared remote controller Download PDFInfo
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- CN208673516U CN208673516U CN201821410206.1U CN201821410206U CN208673516U CN 208673516 U CN208673516 U CN 208673516U CN 201821410206 U CN201821410206 U CN 201821410206U CN 208673516 U CN208673516 U CN 208673516U
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Abstract
The utility model discloses a kind of inexpensive infrared remote controllers in infrared remote control field, comprising: infrared transmitting circuit, including being connected to the time base circuit on power supply through button switch, the output end of time base circuit is connected with infrared transmitting tube through slide rheostat；Infrared receiving circuit, including infrared receiving tube, the output end of infrared receiving tube is connected with amplifying circuit, the output end of amplifying circuit is connected with acoustic control trigger circuit, the output end of acoustic control trigger circuit is connected with control relay circuit, to control relay whether it is electric, the normal open switch of relay is to control whether household motor interface accesses power supply, the utility model circuit structure is simple, saves development cost；The frequency that infrared pulse signal can be arbitrarily changed by slide rheostat, prevents the interference of other signals, improves the stability and reliability of control；It is easy to control, it can be used in the control of household electrical appliance.
Description
Technical field
The utility model relates to a kind of remote control circuit, in particular to a kind of infrared remote controller.
Background technique
At present most of chip on the market be not with infrared receiver function, such as at present major part CPU all without
Infrared to shake control function, without touch, or with key, or with mouse, but machine hangs over high place or has no way
It touches or by less than key, is very inconvenient to operate in this way.Currently existing scheme is all more complicated, and single-chip microcontroller is needed to compile
Journey emits infrared signal using fixed carrier frequency, and manufacturing cost is relatively high.
Utility model content
The purpose of the utility model is to provide a kind of inexpensive infrared remote controllers, can change infrared pulse frequency, prevent
The interference of other signals, so that infrared control is more safe and reliable.
Purpose of the utility model is realized as follows: a kind of low cost infrared remote controller, comprising:
Infrared transmitting circuit, including being connected to the time base circuit on power supply, the output end warp of time base circuit through button switch
Slide rheostat is connected with infrared transmitting tube；
Infrared receiving circuit, including infrared receiving tube, the output end of infrared receiving tube are connected with amplifying circuit, amplifying circuit
Output end be connected with acoustic control trigger circuit, the output end of acoustic control trigger circuit is connected with control relay circuit, to control
Relay whether it is electric, the normal open switch of relay is to control whether household motor interface accesses power supply.
As further limiting for the utility model, the time base circuit selects 4 feet and 8 feet warp of NE555 chip U1, U1
Button switch connects power supply, 1 foot ground connection, 2 feet and 6 foot meridian capacitor C1 ground connection, infrared transmitting tube U2 that 3 feet are concatenated, infrared emission
Pipe U3, resistance R2 ground connection, the binding post one at slide rheostat both ends terminate 6 feet, 3 feet of another termination, and slide plate terminates 3 feet.
As further limiting for the utility model, the household motor interface is opened with AC220V power supply, relay normally open
Forming circuit is closed, the AC220V power supply exports AC12V power supply through transformer, as relay, acoustic control trigger circuit, amplification electricity
The driving power of road and infrared receiving tube.
As further limiting for the utility model, the acoustic control trigger circuit selects BH-SK-I chip U5, amplifying circuit
NPN type triode Q1 is selected, the control relay circuit selects NPN type triode Q2, and 1 foot of U5 meets Q1 through filter capacitor C4
Collector, the base stage of 12 feet of U5 as output termination Q2, the collector of Q1 meets AC12V power supply, the emitter ground connection of Q1, Q1
Base stage connect infrared receiving tube output end；The collector of Q2 connects AC12V power supply, the emitter ground connection of Q2 through relay coil.
Compared with prior art, the beneficial effects of the utility model are, the utility model circuit structure is simple, save
Development cost；The frequency that infrared pulse signal can be arbitrarily changed by slide rheostat, prevents the interference of other signals, improves
The stability and reliability of control；It is easy to control；The utility model is suitable for the control of household electrical appliance.
Detailed description of the invention
Fig. 1 is infrared transmitting circuit schematic diagram in the utility model.
Fig. 2 is infrared receiving circuit schematic diagram in the utility model.
Specific embodiment
The utility model is described further combined with specific embodiments below.
In figure, KEY1 is manual key, and U1 NE555 is 8 foot time base integrated circuit, and R3 is slide rheostat, and U2, U3 are
Infrared transmitting tube, U4 are infrared receiving tube, and Q1, Q2 are NPN type triode, and U5 is acoustic control integrated package BH-SK-I device, RELAY1
For single channel normally opened relay, CN1 is household motor interface, and U6 is AC transformer, is responsible for alternating current 220V being converted to exchange
12V。
A kind of inexpensive infrared remote controller as shown in Figs. 1-2, comprising:
Infrared transmitting circuit, including the time base circuit U1 being connected to through button switch K EY1 on power supply, time base circuit U1's
Output end is connected with infrared transmitting tube U2 through slide rheostat R3, and U3, time base circuit U1 select NE555 chip, 4 feet of U1 and 8
Foot connects+9V power supply, 1 foot ground connection, 2 feet and 6 foot meridian capacitor C1 ground connection, the infrared transmitting tube that 3 feet are concatenated through button switch K EY1
U2, infrared transmitting tube U3, resistance R2 ground connection, 1 foot of slide rheostat R3 connect 6 feet of U1, and 3 feet of slide rheostat R3 connect U1's
3 feet of 3 feet, slide rheostat R3 connect 3 feet of U1；
Infrared receiving circuit, including infrared receiving tube, the output end of infrared receiving tube are connected with amplifying circuit, amplifying circuit
NPN type triode Q1 is selected, the output end of amplifying circuit is connected with acoustic control trigger circuit, the output end connection of acoustic control trigger circuit
Have control relay circuit, to control relay RELAY1 whether it is electric, the normal open switch of relay is to control household electric
Whether machine interface CN1 accesses power supply, and household motor interface CN1 and AC220V power supply, relay normally open switch are formed into a loop,
AC220V power supply exports AC12V power supply through transformer, as relay coil, acoustic control trigger circuit, amplifying circuit and infrared
The driving power of reception pipe, acoustic control trigger circuit select BH-SK-I chip U5, and control relay circuit selects NPN type triode
1 foot of Q2, U5 connect the collector of Q1, base stage of 12 feet of U5 as output termination Q2 through filter capacitor C4, and the collector of Q1 connects
AC12V power supply, the emitter ground connection of Q1, the base stage of Q1 connect infrared receiving tube output end；The collector of Q2 connects through relay coil
AC12V power supply, the emitter ground connection of Q2.
The core of infrared transmitting circuit is U1 NE555 chip in the utility model, and U2, U3 are infrared transmitting tube, when pressing
After button switch K EY1, by adjust slide rheostat R3 can allow infrared transmitting circuit issue different frequency infrared letter
Number, prevent the interference in receiving end by other infrared signals；Receiving circuit includes infrared receiving tube, amplifying circuit and acoustic control touching
Power Generation Road (multivibrator)；Infrared receiving tube U4 be with infrared sending tube U2, U3 is matching used, it is responsible for infrared light arteries and veins
Punching becomes electric signal, through the preposition amplification of Q1, triggers U5, is acoustic control integrated package BH-SK-I device；After being toggled, U5's
12 feet export high level, and Q2 is connected, and relay RELAY1 is attracted, household motor interface CN1(, that is, socket) obtain electric operation；If closing
Machine only need to press button switch K EY1 again, then the trigger overturning in U5,12 feet export low level, and Q2 ends,
RELAY1 release, CN1 power-off.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.
Claims (4)
1. a kind of low cost infrared remote controller characterized by comprising
Infrared transmitting circuit, including being connected to the time base circuit on power supply through button switch, the output end of time base circuit is through sliding
Rheostat is connected with infrared transmitting tube；
Infrared receiving circuit, including infrared receiving tube, the output end of infrared receiving tube are connected with amplifying circuit, amplifying circuit it is defeated
Outlet is connected with acoustic control trigger circuit, and the output end of acoustic control trigger circuit is connected with control relay circuit, to control relay
Device whether it is electric, the normal open switch of relay is to control whether household motor interface accesses power supply.
2. a kind of inexpensive infrared remote controller according to claim 1, which is characterized in that the time base circuit is selected
4 feet and 8 feet of NE555 chip U1, U1 connect power supply, 1 foot ground connection, 2 feet and 6 foot meridian capacitor C1 ground connection through button switch, and 3 feet are through going here and there
The infrared transmitting tube U2 of connection, infrared transmitting tube U3, resistance R2 ground connection, the binding post one at slide rheostat both ends terminates 6 feet, another
3 feet are terminated, slide plate terminates 3 feet.
3. a kind of inexpensive infrared remote controller according to claim 1 or 2, which is characterized in that the household motor connects
Mouth is formed into a loop with AC220V power supply, relay normally open switch, and the AC220V power supply exports AC12V power supply, work through transformer
For relay, acoustic control trigger circuit, the driving power of amplifying circuit and infrared receiving tube.
4. a kind of inexpensive infrared remote controller according to claim 3, which is characterized in that the acoustic control trigger circuit choosing
With BH-SK-I chip U5, amplifying circuit selects NPN type triode Q1, and the control relay circuit selects NPN type triode
1 foot of Q2, U5 connect the collector of Q1, base stage of 12 feet of U5 as output termination Q2 through filter capacitor C4, and the collector of Q1 connects
AC12V power supply, the emitter ground connection of Q1, the base stage of Q1 connect infrared receiving tube output end；The collector of Q2 connects through relay coil
AC12V power supply, the emitter ground connection of Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821410206.1U CN208673516U (en) | 2018-08-30 | 2018-08-30 | A kind of low cost infrared remote controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821410206.1U CN208673516U (en) | 2018-08-30 | 2018-08-30 | A kind of low cost infrared remote controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208673516U true CN208673516U (en) | 2019-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821410206.1U Active CN208673516U (en) | 2018-08-30 | 2018-08-30 | A kind of low cost infrared remote controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208673516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367068A (en) * | 2020-11-12 | 2021-02-12 | 康佳集团股份有限公司 | Elevator button circuit and elevator |
-
2018
- 2018-08-30 CN CN201821410206.1U patent/CN208673516U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367068A (en) * | 2020-11-12 | 2021-02-12 | 康佳集团股份有限公司 | Elevator button circuit and elevator |
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