CN109615839A - A kind of coding chip and remote control device of integrated key power supply - Google Patents
A kind of coding chip and remote control device of integrated key power supply Download PDFInfo
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- CN109615839A CN109615839A CN201811548014.1A CN201811548014A CN109615839A CN 109615839 A CN109615839 A CN 109615839A CN 201811548014 A CN201811548014 A CN 201811548014A CN 109615839 A CN109615839 A CN 109615839A
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- key
- power supply
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
Present invention discloses the coding chips and remote control device of a kind of integrated key power supply, key power supply module is integrated on the coding chip, key power supply module includes power control module and the field effect transistor that is connected with power control module, power control module is connected with the key-press input end of chip, and it is connected by field effect transistor with the power positive end input terminal and key of chip power supply output end, when any one or more in key-press input end have been detected by key pressing, electricity is sent to key power supply output end by field effect transistor by power control module, realize key power supply.The present invention has many advantages, such as that integrated level is higher, system is more succinct, high reliablity, system cost is lower, pcb board wiring is convenient, is suitable for more multi-remote-controller shape.
Description
Technical field
The present invention relates to a kind of wireless remote controllers, coding chip and remote control more particularly, to a kind of integrated key power supply
Device.
Background technique
Wireless remote controller, and can be described as Digiplex, it is using the frequency ranges such as 315M or 433.92M hertz as load
Wave has modulated encoded signal, is sent by antenna.Radio receiver is by receiving corresponding band signal and demodulating
Corresponding signal realizes the purpose of remote control.
Battery power supply is usually used in wireless remote controller, it requires low-power consumption.It is traditional to realize low-power consumption purpose
Wireless remote controller increases a triode and some resistance in the outside of traditional code chip to realize the key of remote control device
The function of energization, not key no power (also not power consumption) achievees the purpose that reduce power consumption.This scheme will increase by one in chip exterior
A triode and some resistance, it is more that there are components, and reliability is low, system cost is high, pcb board wiring is inconvenient, outside remote controler
The disadvantages of shape is restricted.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, it is succinct to provide a kind of integrated level height, high reliablity, wiring
Integrated key power supply coding chip and remote control device.
To achieve the above object, the following technical solutions are proposed by the present invention: a kind of coding chip of integrated key power supply, described
Coding chip includes power positive end input terminal, key power supply output end, the power supply negative terminal input terminal of ground connection, coding output end and more
A key-press input end, and key power supply module is integrated on the coding chip, the key power supply module includes power supply control
Module and the field effect transistor being connected with power control module, the power control module are connected with key-press input end, and logical
It crosses the field effect transistor to be connected with the power positive end input terminal and key of chip power supply output end, the key-press input
When any one or more in end have been detected by key pressing, the power control module is sent electricity by field effect transistor
To key power supply output end, key power supply is realized, the key-press input end corresponds to the corresponding encoded information of the key.
Preferably, the field effect transistor is PMOS tube, and the grid of the PMOS tube connects power control module, and source electrode connects
The power positive end input terminal of power control module and chip, drain electrode connect the key power supply output end of chip.
Preferably, the coding chip includes four key-press input ends, one key of each key-press input termination, and key
The other end accesses power positive end and the power positive end input terminal, power supply negative terminal ground connection.
Present invention further teaches another technical solutions: a kind of remote control device, including above-mentioned coding chip and carrier wave hair
The key power supply output end of code circuit, voltage regulator circuit and key signaling indicating circuit, the carrier wave signaling circuit and coding chip
It is connected with coding output end, the voltage regulator circuit is connected on the route that carrier wave signaling circuit is connect with key power supply output end,
The key signaling indicating circuit is connected with coding output end.
Preferably, the carrier wave signaling circuit includes first resistor, second resistance, first capacitor, the second capacitor, third electricity
Appearance, the 4th capacitor, NPN triode harmony table device, the first capacitor, the second capacitor and first resistor are in parallel and one end connects
Ground, the other end and the third capacitor of the first capacitor are connected in series, the current collection of the other end of the third capacitor, NPN triode
One end of pole harmony table device connects key power supply output end, and the emitter of the NPN triode connects the other end of first resistor,
The another of second capacitor is terminated between first, third capacitor and is also connected with the emitter of NPN triode, sound table device it is another
One end is connected to the base stage of NPN triode and one end of second resistance, and another termination of second resistance encodes output end, the 4th capacitor
An end be connected to second resistance and coding output end between, the other end ground connection.
Preferably, the voltage regulator circuit includes two the 5th capacitors and the 6th capacitor being in parallel, the 5th capacitor and
One end of 6th capacitor is grounded, on the route that the equal access carrier signaling circuit of the other end is connect with key power supply output end.
Preferably, the key signaling indicating circuit includes the 3rd resistor being connected in series and a LED light, the third
One end of resistance is connected between second resistance and coding output end, and the anode of another termination LED light, LED light is born
End ground connection.
The beneficial effects of the present invention are: the existing key function of supplying power module of integrated chip of the invention, overcomes biography
Component existing for system chip and the remote control scheme for using traditional die to form is more, and reliability is low, system cost is high, pcb board cloth
The disadvantages of line is inconvenient, remote controler profile space is restricted has integrated level higher, and system is more succinct, high reliablity, system at
The advantages that this is low, pcb board wiring is convenient, is suitable for more multi-remote-controller shape.
Detailed description of the invention
Fig. 1 is the pin schematic diagram of coding chip of the present invention；
Fig. 2 is the structural schematic diagram of key power supply module of the present invention；
Fig. 3 is the structural schematic diagram of remote control device of the present invention.
Specific embodiment
Below in conjunction with attached drawing of the invention, clear, complete description is carried out to the technical solution of the embodiment of the present invention.
As shown in Figure 1, a kind of revealed coding chip of integrated key power supply of the embodiment of the present invention, including multiple pipes
Foot, in the present embodiment, including 8 pins (1,2 ... 8), wherein in conjunction with shown in the following table 1, pin 1 is power positive end input terminal
Vcc, pin 2 are key power supply output end VDD, and pin 3 is the power supply negative terminal input terminal Vss of ground connection, and pin 4 is coding output end
TXD, pin 5~8 are respectively key-press input end K0, key-press input end K1, key-press input end K2 and key-press input end K3.Each press
Key input terminates a key.Certainly, which is only particular instance of the invention, cannot be considered as limitation of the present invention.It is logical
Variation appropriate is crossed also within protection of the invention, such as: part order of the pin changes, changes foot position title, increases and can subtract
Few key foot quantity etc..
| Title | Function declaration | |
| 1 | Vcc | Power positive end (+) input terminal |
| 2 | VDD | Key power supply (+) output end |
| 3 | Vss | Power supply negative terminal (-) input terminal, it is typically grounded |
| 4 | TXD | Encode output end |
| 5 | K0 | Key-press input end 1 |
| 6 | K1 | Key-press input end 2 |
| 7 | K2 | Key-press input end 3 |
| 8 | K3 | Key-press input end 4 |
The coding chip pin explanation of the invention of table 1
Preferably, key power supply module is integrated on coding chip, in the present embodiment, as shown in Fig. 2, key power supply module
The field effect transistor for specifically including power control module and being connected with power control module, wherein power control module and volume
The pin 5~8 and pin 3 of code chip are connected, and PMOS tube or NMOS tube, the present embodiment can be used when implementing in field effect transistor
It is middle to use PMOS tube.The grid of PMOS tube connects power control module, and source electrode connects the pin 1 of power control module and chip, i.e., electric
Source anode input terminal Vcc, drain electrode connect the pin 2 of chip, i.e. key power supply output end VDD.
The power supply the principle of key power supply module of the invention are as follows: this module detects chip pin 5, pin 6, pin 7, pipe
In foot 8 it is any one or more press key pressing when, power control module can make the grid low level of PMOS1 pipe, and PMOS tube is opened
It opens, is sent to the electricity for being added in pin 1 on pin 2, realize key function of supplying power；And when not pressing key pressing, confession is automatically controlled
Molding block can make the grid high level of PMOS1 pipe, and PMOS tube is closed, and power off pin 2, while power control module itself exists
When not pressing key pressing, the purpose of low-power consumption is realized in not power consumption.In addition, compared with traditional code chip, because key is powered mould
Block is integrated on chip, it is achieved that integrated level is higher, system is more succinct, high reliablity, system cost are lower, pcb board cloth
Line is convenient, is suitable for the purpose of more multi-remote-controller shape etc..
As shown in figure 3, a kind of revealed remote control device of the embodiment of the present invention, including above-mentioned coding chip, carrier wave signaling
Circuit, voltage regulator circuit and key signaling indicating circuit, wherein coding chip, that is, above structure, which is not described herein again.Carrier wave signaling
Circuit is powered output end (i.e. pin 2) with the key of coding chip and coding output end (i.e. pin 4) is connected.The present embodiment
In, carrier wave signaling circuit specifically includes: first resistor R1, second resistance R2, first capacitor C1, the second capacitor C2, third capacitor
C3, the 4th capacitor C4, NPN triode harmony table device SAW, wherein first capacitor C1, the second capacitor C2 and first resistor R1 are simultaneously
Joining and one end is grounded, the other end and the third capacitor C3 of the first capacitor C1 is connected in series, the other end of third capacitor C3,
One end of the collector harmony table device SAW of NPN triode connects key power supply output end (i.e. pin 2), the hair of NPN triode
Emitter-base bandgap grading connects the other end of first resistor R1, and the another of the second capacitor C2 is terminated between first, third capacitor C1, C3 and and NPN
The emitter of triode is also connected, and the one of another base stage for being terminated at NPN triode of sound table device SAW and second resistance R2
Another termination at end, second resistance R2 encodes output end (i.e. pin 4), and an end of the 4th capacitor C4 is connected to second resistance R2 and volume
Between code output end (i.e. pin 4), other end ground connection.
In the present embodiment, voltage regulator circuit includes two the 5th capacitor C5 and the 6th capacitor C6 being in parallel, wherein the 5th electricity
The one end for holding C5 and the 6th capacitor C6 is grounded, and the other end accesses above-mentioned carrier wave signaling circuit and key power supply output end (i.e.
Pin 2) connection route on.
In the present embodiment, key signaling indicating circuit includes the 3rd resistor R3 being connected in series and a LED light, wherein
An end of 3rd resistor R3 is connected between second resistance R2 and coding output end (i.e. pin 4), and another termination LED light is just
End, the negativing ending grounding of LED light.
Principle using the remote control device of the above-mentioned coding chip composition of the present invention is: this 4 keys of key K0, K1, K2, K3
In, any one or more when pressing key pressing, the positive voltage of battery can be supplied corresponding carrier wave by 2 feet of chip and sent out by chip
The pin 4 of code circuit, chip issues corresponding encoded information according to the key pressed, and encoded information passes through resistance R1, R2, electricity
Hold C1, C2, C3, C4, NPN high-frequency triode, the carrier wave signaling circuit of sound table device SAW composition will pass through high frequency by antenna
The encoded information of modulation is launched.Capacitor C5, C6 play burning voltage.Resistance R3 and LED light composition key signaling instruction
Lamp system, when signaling, LED light is bright；Not when signaling, LED light does not work.When not pressing key pressing, 2 foot of chip is out of power, carrier wave
Signaling down circuitry.When not pressing key pressing, chip of the invention also not power consumption itself realizes the purpose of low-power consumption.
Technology contents and technical characteristic of the invention have revealed that as above, however those skilled in the art still may base
Make various replacements and modification without departing substantially from spirit of that invention, therefore, the scope of the present invention in teachings of the present invention and announcement
It should be not limited to the revealed content of embodiment, and should include various without departing substantially from replacement and modification of the invention, and be this patent Shen
Please claim covered.
Claims (7)
1. a kind of coding chip of integrated key power supply, which is characterized in that the coding chip include power positive end input terminal, by
Key power supply output end, the power supply negative terminal input terminal of ground connection, coding output end and multiple key-press input ends, and on the coding chip
It is integrated with key power supply module, the key power supply module includes power control module and the field being connected with power control module effect
Transistor is answered, the power control module is connected with key-press input end, and passes through the described of the field effect transistor and chip
Power positive end input terminal and key power supply output end are connected, any one or more in the key-press input end detected by
When key pressing, electricity is sent to key power supply output end by field effect transistor by the power control module, realizes key power supply,
The key-press input end corresponds to the corresponding encoded information of the key.
2. the coding chip of integrated key power supply according to claim 1, which is characterized in that the field effect transistor is
PMOS tube, the grid of the PMOS tube connect power control module, and source electrode connects the power positive end of power control module and chip
Input terminal, drain electrode connect the key power supply output end of chip.
3. the coding chip of integrated key power supply according to claim 1, which is characterized in that the coding chip includes four
A key-press input end, each key-press input terminates a key, and the other end of key is accessing power positive end and the power supply just
Hold input terminal, power supply negative terminal ground connection.
4. a kind of remote control device, which is characterized in that including coding chip described in 1~3 any one of the claims, and carry
The key power supply of wave signaling circuit, voltage regulator circuit and key signaling indicating circuit, the carrier wave signaling circuit and coding chip is defeated
Outlet is connected with coding output end, and the voltage regulator circuit is connected to the route that carrier wave signaling circuit is connect with key power supply output end
On, the key signaling indicating circuit is connected with coding output end.
5. remote control device according to claim 4, which is characterized in that the carrier wave signaling circuit includes first resistor,
Two resistance, first capacitor, the second capacitor, third capacitor, the 4th capacitor, NPN triode harmony table device, the first capacitor,
Second capacitor and first resistor are in parallel and one end is grounded, and the other end and the third capacitor of the first capacitor are connected in series, described
The other end of third capacitor, one end of the collector harmony table device of NPN triode meet key power supply output end, the NPN
The emitter of triode connects the other end of first resistor, and the another of the second capacitor is terminated between first, third capacitor and and NPN
The emitter of triode is also connected, one end of another base stage for being terminated at NPN triode and second resistance of sound table device, and second
Another termination of resistance encodes output end, and an end of the 4th capacitor is connected between second resistance and coding output end, another termination
Ground.
6. remote control device according to claim 4, which is characterized in that the voltage regulator circuit include two be in parallel the 5th
One end of capacitor and the 6th capacitor, the 5th capacitor and the 6th capacitor is grounded, the equal access carrier signaling circuit of the other end with
Key is powered on the route that output end connects.
7. remote control device according to claim 4, which is characterized in that the key signaling indicating circuit includes being connected in series
3rd resistor and a LED light, an end of the 3rd resistor are connected between second resistance and coding output end, another termination
The anode of LED light, the negativing ending grounding of LED light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548014.1A CN109615839B (en) | 2018-12-18 | 2018-12-18 | Coding chip and remote control device integrated with key power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548014.1A CN109615839B (en) | 2018-12-18 | 2018-12-18 | Coding chip and remote control device integrated with key power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109615839A true CN109615839A (en) | 2019-04-12 |
| CN109615839B CN109615839B (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811548014.1A Active CN109615839B (en) | 2018-12-18 | 2018-12-18 | Coding chip and remote control device integrated with key power supply |
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Cited By (1)
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| CN112152645A (en) * | 2019-06-27 | 2020-12-29 | 苏州锐联芯半导体有限公司 | Fully-integrated wireless transmitting chip realized based on CMOS (complementary Metal oxide semiconductor) process and application thereof |
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| CN109615839B (en) | 2021-03-02 |
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