CN206506739U - A kind of remote controller key backlight illumination is adjustably controlled circuit - Google Patents
A kind of remote controller key backlight illumination is adjustably controlled circuit Download PDFInfo
- Publication number
- CN206506739U CN206506739U CN201621471325.9U CN201621471325U CN206506739U CN 206506739 U CN206506739 U CN 206506739U CN 201621471325 U CN201621471325 U CN 201621471325U CN 206506739 U CN206506739 U CN 206506739U
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- circuit
- key
- leg
- head
- power supply
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- 238000005286 illumination Methods 0.000 title claims abstract description 18
- 230000033228 biological regulation Effects 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000003827 upregulation Effects 0.000 claims description 21
- 239000003381 stabilizer Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Abstract
A kind of remote controller key backlight illumination is adjustably controlled circuit, it is characterised in that：Including DC power supply circuits, key scanning circuit, LED backlight circuit, microcontroller circuit, the adjustable LED luminance being connected between microcontroller circuit and LED backlight circuit regulation circuit；DC electricity of powering provides working power for microcontroller circuit, and the key scanning circuit is to microcontroller circuit transmission control instruction；The microcontroller circuit drives brightness adjustable circuit by receiving the information on key scanning circuit after parsing.
Description
Technical field
The utility model is related to a kind of remote controller key backlight illumination and is adjustably controlled circuit.
Background technology
At present, the remote controller key in smart home field is mostly sense of touch button or physical button, and usual button is furnished with
Backlight, to point out user to operate, the brightness of backlight of its button is usually fixed constant, is usually after user key-press
Backlight is lighted.Such backlight system brightness is single, and during hand button, backlight is lighted according to predetermined luminance, lacks people
Machine interactivity.
Utility model content
The purpose of this utility model is that providing a kind of remote controller key backlight illumination is adjustably controlled circuit.
The technical scheme in the invention for solving the above technical problem is：A kind of remote controller key backlight illumination can adjust
Control circuit, including DC power supply circuits, key scanning circuit, LED backlight circuit, microcontroller circuit, be connected to microprocessor
The regulation circuit of adjustable LED luminance between circuit and LED backlight circuit；DC power supply circuits provide for microcontroller circuit
Working power, the key scanning circuit sends control instruction to microcontroller circuit；The microcontroller circuit is by receiving
Information on key scanning circuit, drives brightness adjustable circuit after parsing.
DC power supply circuits described in the utility model include power supply chip, power supply peripheral circuit, and power supply peripheral circuit includes
Voltage-stabiliser tube, the 15th electric capacity, voltage-stabiliser tube two ends connect the 3rd of power supply chip the, the 1st pin, the 15th electric capacity and voltage-stabiliser tube respectively
It is in parallel, the 1st pin ground connection of power supply chip, the 2nd pin of power supply chip connects power supply.
Key scanning circuit described in the utility model uses rank scanning mode, and ranks are sent by microcontroller circuit
The drive signal of scanning, when button is pressed, key scanning circuit is by the key value information transmission scanned to microcontroller circuit
Parsed.
Regulation circuit described in the utility model is converted into LED by receiving the control signal that microcontroller circuit is sent
Pwm control signal needed for backlight circuit, the pwm signal is used to adjust the brightness of LED in LED backlight circuit to reach LED
The adjustable purpose of backlight illumination.
Microcontroller circuit described in the utility model can be single-chip microcomputer or digital integrated electronic circuit controller.
LED backlight circuit described in the utility model includes a number of LED and the current limliting electricity of series connection corresponding with LED
Resistance, each LED is in parallel.
Burning voltage after the utility model is converted through DC power supply circuits is 3.3V.
Key scanning circuit described in the utility model is including on head memory button, leg memory button, memory close key, head
Adjust key, head down key, leg up-regulation key, leg down key, light emitting diode；The head memory button, leg memory button, note
Recall close key to be in parallel, the head memory button, leg memory button, the points of common connection for remembering close key connect the of single-chip microcomputer
32 pins, the head memory button, leg memory button, another points of common connection of memory close key connect the 14th of single-chip microcomputer and drawn
Pin；The head up-regulation key, leg up-regulation key, light emitting diode are in parallel, and the head up-regulation key, leg are raised key, lighted
One points of common connection of diode connects the 10th pin of single-chip microcomputer, the head up-regulation key, leg up-regulation key, light emitting diode
Another points of common connection connects the 14th pin of single-chip microcomputer；The head down key, leg down key are in parallel, and the head is lowered
Key, a points of common connection of leg down key connect the 13rd pin of single-chip microcomputer, the head down key, leg down key it is another
Points of common connection connects the 14th pin of single-chip microcomputer.
The utility model compared with prior art, with advantages below and effect：
The invention has adjusting control circuit simple in construction, easy to operate, available for remote controller key backlight illumination
It is adjustably controlled, meets remote control to the adjustable demand of backlight illumination, and it possesses that small volume, cost be low, electric current is relative
Constant advantage, with popularizing value.
Brief description of the drawings
Fig. 1 is the principle schematic of the utility model embodiment 1.
Fig. 2 is the schematic diagram of DC power supply circuits described in the utility model embodiment 1.
Fig. 3 is key scanning circuit schematic diagram described in the utility model embodiment 1.
Fig. 4 is microcontroller circuit schematic diagram described in the utility model embodiment 1.
Fig. 5 is LED backlight circuit schematic diagram described in the utility model embodiment 1.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Embodiment 1：
As shown in figure 1, a kind of remote controller key backlight illumination is adjustably controlled circuit, including DC power supply circuits, button are swept
Scanning circuit, LED backlight circuit, microcontroller circuit, be connected to it is adjustable between microcontroller circuit and LEDD1 backlight circuits
Save the regulation circuit of LED luminance；DC electricity of powering provides working power for microcontroller circuit, and the key scanning circuit is to micro- place
Manage device circuit and send control instruction；The microcontroller circuit is by receiving the information on key scanning circuit, after parsing
Drive brightness adjustable circuit.
As shown in Fig. 2 the DC power supply circuits described in the present embodiment include power supply chip, power supply peripheral circuit, power supply periphery
Circuit includes voltage-stabiliser tube Z1, the 15th electric capacity C15, and voltage-stabiliser tube Z1 two ends connect the 3rd of power supply chip the, the 1st pin, the tenth respectively
Five electric capacity C15 and voltage-stabiliser tube Z1 is in parallel, and the 1st pin ground connection of power supply chip, the 2nd pin of power supply chip connects power supply.Power supply
Chip uses HT7533, is in series with diode between the 2nd pin and power supply of power supply chip, realizes one-way conduction.
As shown in figure 4, the brightness adjustable circuit described in the present embodiment is by receiving the control that microcontroller circuit is sent
Signal processed, is converted into the pwm control signal needed for LED backlight circuit, and the pwm signal is used to adjust LED in LED backlight circuit
Brightness is so as to reach the adjustable purpose of LED backlight brightness.
Microcontroller circuit described in the present embodiment can be single-chip microcomputer or digital integrated electronic circuit controller.
As shown in figure 5, LED backlight circuit described in the present embodiment includes a number of LEDD1 and corresponding with LEDD1
The current-limiting resistance R of series connection, each LEDD1 are in parallel.
Burning voltage after DC power supply circuits conversion described in the present embodiment is 3.3V.
As shown in figure 3, the key scanning circuit described in the present embodiment uses rank scanning mode, pass through microcontroller circuit
The drive signal of rank scanning is sent, when button is pressed, the key value information transmission scanned is given micro- place by key scanning circuit
Reason device circuit is parsed.
Key scanning circuit described in the present embodiment includes head memory button S1, leg memory button S2, memory close key S3, head
Portion up-regulation key S5, head down key S8, leg up-regulation key S7, leg down key S10, light emitting diode S6；The head memory
Key S1, leg memory button S2, memory close key S3 are in parallel, the head memory button S1, leg memory button S2, memory close key
A S3 points of common connection connects the 32nd pin of single-chip microcomputer, the head memory button S1, leg memory button S2, memory close key S3
Another points of common connection connect the 14th pin of single-chip microcomputer；The head up-regulation key S5, leg up-regulation key S7, light emitting diode S6
It is in parallel, the head up-regulation key S5, leg up-regulation key S7, a light emitting diode S6 points of common connection connect the 10th of single-chip microcomputer
Pin, the head up-regulation key S5, leg up-regulation key S7, light emitting diode S6 another points of common connection connect the 14th of single-chip microcomputer
Pin；The head down key S8, leg down key S10 are in parallel, the head down key S8, the one of leg down key S10
Points of common connection connects the 13rd pin of single-chip microcomputer, and the head down key S8, leg down key S10 another points of common connection connect
14th pin of single-chip microcomputer.
Above content described in this specification is only to the utility model example explanation.The utility model
Person of ordinary skill in the field can make various modifications or supplement to described specific embodiment or use class
As mode substitute, content without departing from the utility model specification or surmount model defined in the claims
Enclose, protection domain of the present utility model all should be belonged to.
Claims (8)
1. a kind of remote controller key backlight illumination is adjustably controlled circuit, it is characterised in that：Including DC power supply circuits, key scan
Circuit, LED backlight circuit, microcontroller circuit, the adjustable LED being connected between microcontroller circuit and LED backlight circuit
The regulation circuit of brightness；DC electricity of powering provides working power for microcontroller circuit, and the key scanning circuit is to microprocessor
Circuit sends control instruction；The microcontroller circuit is driven by receiving the information on key scanning circuit after parsing
Brightness adjustable circuit.
2. a kind of remote controller key backlight illumination as claimed in claim 1 is adjustably controlled circuit, it is characterised in that：Described
DC power supply circuits include power supply chip, power supply peripheral circuit, and power supply peripheral circuit includes voltage-stabiliser tube, the 15th electric capacity, voltage-stabiliser tube
Two ends connect the 3rd of power supply chip the, the 1st pin respectively, and the 15th electric capacity is in parallel with voltage-stabiliser tube, the 1st pin of power supply chip
Ground connection, the 2nd pin of power supply chip connects power supply.
3. a kind of remote controller key backlight illumination as claimed in claim 1 is adjustably controlled circuit, it is characterised in that：Described
Key scanning circuit uses rank scanning mode, the drive signal of rank scanning is sent by microcontroller circuit, button is pressed
When, key scanning circuit is parsed the key value information transmission scanned to microcontroller circuit.
4. a kind of remote controller key backlight illumination as claimed in claim 1 is adjustably controlled circuit, it is characterised in that：It is described to adjust
Economize on electricity road is converted into the PWM control letters needed for LED backlight circuit by receiving the control signal that microcontroller circuit is sent
Number, the pwm signal is used to adjust the brightness of LED in LED backlight circuit to reach the adjustable purpose of LED backlight brightness.
5. a kind of remote controller key backlight illumination as claimed in claim 1 is adjustably controlled circuit, it is characterised in that：Described
Microcontroller circuit can be single-chip microcomputer or digital integrated electronic circuit controller.
6. a kind of remote controller key backlight illumination as claimed in claim 1 is adjustably controlled circuit, it is characterised in that：Described
LED backlight circuit includes a number of LED and the current-limiting resistance of series connection corresponding with LED, and each LED is in parallel.
7. a kind of remote controller key backlight illumination as claimed in claim 2 is adjustably controlled circuit, it is characterised in that：Supplied through DC
Burning voltage after circuit conversion is 3.3V.
8. a kind of remote controller key backlight illumination as claimed in claim 3 is adjustably controlled circuit, it is characterised in that：It is described to press
Key scanning circuit includes head memory button, leg memory button, memory close key, head up-regulation key, head down key, leg up-regulation
Key, leg down key, light emitting diode；
The head memory button, leg memory button, memory close key are in parallel, the head memory button, leg memory button, memory
One points of common connection of close key connects the 32nd pin of single-chip microcomputer, the head memory button, leg memory button, memory close key
Another points of common connection connects the 14th pin of single-chip microcomputer；
The head up-regulation key, leg up-regulation key, light emitting diode are in parallel, and the head up-regulation key, leg are raised key, lighted
One points of common connection of diode connects the 10th pin of single-chip microcomputer, the head up-regulation key, leg up-regulation key, light emitting diode
Another points of common connection connects the 14th pin of single-chip microcomputer；
The head down key, leg down key are in parallel, and the head down key, a points of common connection of leg down key connect
13rd pin of single-chip microcomputer, the head down key, another points of common connection of leg down key connect the 14th pin of single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621471325.9U CN206506739U (en) | 2016-12-30 | 2016-12-30 | A kind of remote controller key backlight illumination is adjustably controlled circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621471325.9U CN206506739U (en) | 2016-12-30 | 2016-12-30 | A kind of remote controller key backlight illumination is adjustably controlled circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206506739U true CN206506739U (en) | 2017-09-19 |
Family
ID=59838701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621471325.9U Expired - Fee Related CN206506739U (en) | 2016-12-30 | 2016-12-30 | A kind of remote controller key backlight illumination is adjustably controlled circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206506739U (en) |
-
2016
- 2016-12-30 CN CN201621471325.9U patent/CN206506739U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 314000 room 247, building 6, Jiaxing Photovoltaic Science and Innovation Park, 1288 Kanghe Road, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee after: Dworkon Technology Group Co.,Ltd. Address before: Jiaxing City, Zhejiang province 314016 Sanfeng wangjiangjing Road Development Zone No. 410 Building No. 4 Patentee before: OKIN Refined Electric Technology Co.,Ltd. |
|
| 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: 20170919 |