CN110247648A - Infrared remote controller and its control method, IR remote controller - Google Patents
Infrared remote controller and its control method, IR remote controller Download PDFInfo
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- CN110247648A CN110247648A CN201910564677.0A CN201910564677A CN110247648A CN 110247648 A CN110247648 A CN 110247648A CN 201910564677 A CN201910564677 A CN 201910564677A CN 110247648 A CN110247648 A CN 110247648A
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- remote controller
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/577—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices for plural loads
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
Abstract
The invention discloses a kind of infrared remote controller and its control methods, IR remote controller, infrared remote controller includes controller, battery, infrared transmitting circuit, ON-OFF control circuit and current regulating circuit, ON-OFF control circuit is controlled by the control signal of controller output to switch work and the closed state of infrared transmitting circuit, current regulating circuit is controlled by the adjustment signal of the battery-based output voltage of controller and determination, it is maintained within a preset range with flowing through the electric current of infrared transmitting circuit, control method is applied to the controller, this method judges the output voltage of battery and the relationship of preset range by controller, determine the operating mode of current regulating circuit, the IR remote controller includes the infrared remote controller.The present invention is based on the electric current that the output voltage control of battery is assigned to current regulating circuit, the electric current on infrared transmitting circuit is adjusted, the power supply power consumption so that electric current on infrared transmitting circuit tends to be constant, therefore when can be effectively reduced infrared emission.
Description
Technical field
The present invention relates to remote control technologies to further relate to the infrared remote controller more particularly to infrared remote controller
Control method and IR remote controller with the infrared remote controller.
Background technique
Currently, remote controler is because its is at low cost, has realized the advantages that simple in the household electrical appliance such as television set, air-conditioning, DVD
Be used widely, however in order to meet can far distance control, generally use powerful infrared light-emitting diode.
Fig. 1 shows the circuit structure diagram of infrared remote controller commonly used in the prior art.As shown in Figure 1, infrared remote control
Electric routing battery BAT1 power supply, when user presses remote controler key, controller MCU is one corresponding from the output of general delivery outlet
A series of pulsewidth modulation (PWM) signal of remote control mode, so that controlling infrared light-emitting diode D1 emits infrared signals.
But in the common infrared remote controller, have the following deficiencies: referring to Fig.1, it is infrared as cell voltage VCC higher
The transmitting power consumption of light emitting diode D1 is big；When cell voltage VCC is lower, the transmitting small power consumption of infrared light-emitting diode D1.Also
It is to say, during cell voltage VCC real-time change, transmitting power consumption and the cell voltage of infrared light-emitting diode D1 is positively correlated
Relationship.But since cell voltage VCC need to meet the power demand of controller MCU, because without too low, so light emitting diode D1
Transmitting power consumption it is higher.
Furthermore
Most of IR remote controllers are powered using battery, and Fig. 5 shows the discharge curve that battery is inspired confidence in south, as shown in figure 5,
During battery discharge, cell voltage VCC decays slowly early period, and later period decaying is fast, then cell voltage VCC is during the work time always
Can be very high, so the transmitting power consumption of light emitting diode D1 is higher.
Summary of the invention
The technical problem to be solved by the present invention is infrared transmitting circuit in the prior art passes through control triode circuit
Infrared transmitting tube turn-on and turn-off are carried out, and infrared emission power consumption is big when the voltage of battery is high, infrared hair when the voltage of battery is low
Penetrate small power consumption.
In order to solve the above technical problems, the present invention provides the controls of a kind of infrared remote controller, the infrared remote controller
Method and IR remote controller.
According to the first aspect of the invention, a kind of infrared remote controller is provided comprising controller, battery, infrared
Transmit circuit, ON-OFF control circuit and current regulating circuit,
Wherein, the ON-OFF control circuit is configured to be controlled by the control signal of the controller output, described in switching
The working condition and closed state of infrared transmitting circuit,
The current regulating circuit be configured to be controlled by the controller based on the battery output voltage and determination
Adjustment signal maintains default model to adjust the electric current for flowing through its own to flow through the electric current of the infrared transmitting circuit
In enclosing.
Preferably, the ON-OFF control circuit includes first switch control circuit and second switch control circuit,
Wherein, the first switch control circuit be configured to be controlled by the control signal of the controller output and be connected or
The second switch control circuit is disconnected,
The second switch control circuit is configured to the control signal conduction issued according to the first switch control circuit
Or the shutdown infrared transmitting circuit.
Preferably, the first end of the current regulating circuit is connect with the anode of the battery, second end and the control
Device connection processed, third end are connect with the input terminal of the first switch control circuit,
The control terminal of the first switch control circuit is connect with the controller, the output end of the first switch circuit
It is connect with the control terminal of the second switch control circuit,
One end of the infrared transmitting circuit is connect with the anode of the battery, and the other end is controlled by the second switch
Circuit is connect with the cathode of the battery.
Preferably, the current regulating circuit includes that the first adjusting circuit, the second adjusting circuit and third adjust resistance,
The first adjusting circuit, the second adjusting circuit and third adjust resistance be parallel to respectively the energization input of the controller with
Between output end,
The third adjusts the first end that one end that resistance is connect with the anode of the battery is the current regulating circuit,
One end that the third adjusts the energization input connection of resistance and controller is the second end of the current regulating circuit, described
First adjusting circuit, the second adjusting circuit and third adjust the third that one end that resistor coupled in parallel connects is the current regulating circuit
End.
Preferably, the first adjusting circuit includes the first adjusting resistance, and described first adjusts the both ends difference of resistance
It is connect with the input terminal of the first control mouth of controller and the first switch control circuit.
Preferably, the second adjusting circuit includes the second adjusting resistance, and described second adjusts the both ends difference of resistance
It is connect with the input terminal of the second control mouth of the controller and the first switch control circuit.
Preferably, the first switch control circuit is the first triode,
The base stage of first triode is the control terminal of the first switch control circuit, the extremely described first switch control of current collection
The input terminal of circuit processed emits the output end of the extremely described first switch circuit.
Preferably, the second switch control circuit is the second triode,
The base stage of second triode is the control terminal of the second switch control circuit, collector and infrared emission electricity
Road connection, emitter are connect with the cathode of the battery.
Preferably, the infrared transmitting circuit includes infrared transmitting tube,
The anode of the infrared transmitting tube is connect with the anode of the battery, cathode and the second switch control circuit
Input terminal connection.
According to the second aspect of the invention, the control method of above-mentioned infrared remote controller is provided, is applied to described
Infrared remote controller in controller, which comprises
Controller judges the output voltage of battery and the relationship of preset range；
When the relationship indicate the battery output voltage be greater than preset range the upper limit when, controller control first adjust
Economize on electricity road and the second adjusting circuit export high-impedance state；
When the relationship indicates that the output voltage of the battery is in the upper limit in preset range or equal to preset range,
Controller control first adjusts circuit output high level, and controls second and adjust circuit output high-impedance state；
When the relationship indicate the battery output voltage be less than or equal to preset range lower limit when, controller control
First adjusting circuit and the second adjusting circuit export high level；
After the infrared transmitting circuit battery has fired, controller control described first adjusts circuit and second and adjusts circuit
Export high-impedance state.
According to the third aspect of the present invention, a kind of IR remote controller is provided comprising the infrared remote controller.
Compared with prior art, one or more embodiments in above scheme can have following advantage or beneficial to effect
Fruit:
Using infrared remote controller of the invention, the controller can be distributed based on the output voltage control of the battery
To the electric current of the current regulating circuit, so as to adjust the electric current on infrared transmitting circuit, so that on infrared transmitting circuit
Electric current tends to be constant, therefore power supply power consumption when can be effectively reduced infrared emission.
Detailed description of the invention
The detailed description for reading hereafter exemplary embodiment in conjunction with the accompanying drawings is better understood the scope of the present disclosure.Its
In included attached drawing be:
Fig. 1 is existing common infrared transmitting circuit schematic diagram；
Fig. 2 is the constant power type infrared transmitting circuit schematic diagram of the embodiment of the present invention；
Voltage and current corresponding relationship when Fig. 3 is existing common infrared circuit infrared emission；
Voltage and current corresponding relationship when Fig. 4 is the constant power type infrared circuit infrared emission of the embodiment of the present invention；
Fig. 5 is the discharge curve that battery is inspired confidence in south；
Fig. 6 is the control method flow chart of the embodiment of the present invention.
Wherein, the adjusting of R1- the 5th resistance, the first pull down resistor of R2-, the adjusting resistance of R3- the 4th, the second pull down resistor of R4-,
The adjusting resistance of R5- first, the adjusting resistance of R6- second, R7- third adjusting resistance, D1- infrared transmitting tube, the first triode of Q1-,
The second triode of Q2-, BAT1- battery, MCU- controller, GPIO-The first control mouth of 1-, GPIO-The second control mouth of 0-.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, come below with reference to accompanying drawings and embodiments detailed
Illustrate implementation method of the invention, whereby to how the invention applies technical means to solve technical problems, and reaches technology effect
The realization process of fruit can be fully understood and implemented.
Embodiment one
In the prior art, infrared transmitting circuit is by circuit where control triode, and then controls infrared transmitting tube
On or off, when the output voltage of battery is high, the transmitting power consumption of infrared transmitting tube is big, when the voltage of battery is low, infrared emission
The transmitting small power consumption of pipe, but during battery discharge, decaying output voltage early period of battery is slow, and later period decaying is fast, then battery
Output voltage during the work time always all can be very high, so the transmitting power consumption of infrared transmitting circuit is higher.
The present embodiment provides a kind of infrared remote controller, enables to the electric current for flowing through infrared transmitting circuit smaller, pass through
It reduces the electric current and then reduces the power consumption of infrared transmitting circuit.
Specifically, Fig. 2 is the constant power type infrared transmitting circuit schematic diagram of the embodiment of the present invention.As shown in Fig. 2, this implementation
The infrared remote controller of example includes controller MCU, battery BAT1, infrared transmitting circuit, ON-OFF control circuit and current regulation electricity
Road, ON-OFF control circuit include first switch control circuit and second switch control circuit.First switch control circuit passes through control
The control signal conduction or disconnect second switch control circuit that device MCU processed is issued, second switch control circuit is according to first switch
The control signal conduction or shutdown infrared transmitting circuit that control circuit issues.
Specifically, the control terminal of first switch control circuit is connect with controller MCU, the output end of first switch circuit with
The control terminal of second switch control circuit connects.
Further, it is first switch that first switch control circuit, which is the base stage of the first triode Q1, the first triode Q1,
The control terminal of control circuit, the input terminal of the current collection of the first triode Q1 extremely first switch control circuit, the first triode Q1
Transmitting extremely first switch circuit output end, then controller MCU is by the level of control impulse wave, i.e., the controllable 1st
The on or off of pole pipe Q1.
The base stage that second switch control circuit is the second triode Q2, the second triode Q2 is second switch control circuit
The collector of control terminal, the second triode Q2 is connect with infrared transmitting circuit, the emitter and battery BAT1 of the second triode Q2
Cathode connection.
One end of infrared transmitting circuit is connect with the anode of battery BAT1, and the other end passes through second switch control circuit and electricity
The cathode of pond BAT1 connects, and the second triode Q2 passes through the level conditions that the first triode Q1 is issued, i.e., controllable infrared emission
Circuit is turned on or off.
Controller MCU controls the on-off of first switch control circuit by issuing pwm signal as a result, when controller MCU is defeated
When pwm signal out is high level, if the base stage of the first triode Q1 is high level, the collector of the first triode Q1 and transmitting
Pole conducting, branch where third adjusts resistance R7 access circuit, and the emitter signal of the first triode Q1 exports high, the two or three pole
The collector and emitter of pipe Q2 is connected, and infrared transmitting circuit works normally.
When controller MCU output pwm signal be low level when, if the base stage of the first triode Q1 be low level, first
The collector and emitter of triode Q1 ends, and the base stage of the second triode Q2 is low level signal, the collection of the second triode Q2
Electrode and emitter cut-off, infrared transmitting circuit are disconnected, be can not work normally.
Further, the branch road that controller MCU issues pwm signal is provided with the 5th adjusting resistance R1, and the 5th adjusts electricity
One end of resistance R1 is connect with the pwm signal output end of controller MCU, and the other end is connect with the base stage of the first triode Q1, and the 5th
Resistance R1 is adjusted for protecting the port controller MCU.
In one embodiment, a kind of infrared remote controller further includes the first pull down resistor R2 and the second pull down resistor R4, and
One pull down resistor R2 is serially connected between the emitter of the first triode Q1 and the control electrode of the second triode Q2, the first pull down resistor
R2 is grounded after connecting with the base stage of the second triode Q2 through the second pull down resistor R4.
The electric current of branch where first pull down resistor R2 limitation；Second pull down resistor R4 is not defeated the second triode Q2's
When entering signal, the second triode Q2 can be made reliably to end.
Infrared transmitting circuit includes infrared transmitting tube D1, and the anode of infrared transmitting tube D1 is connect with the anode of battery BAT1,
Cathode is connect with the input terminal of second switch control circuit.
It further, further include the 4th adjusting resistance R3 on infrared transmitting circuit, the 4th adjusts resistance R3 and infrared emission
Pipe D1 series connection then flow in infrared transmitting tube D1 through the 4th adjusting resistance R3 from the electric current of the anode outflow of battery BAT1, then passes through
Second triode Q2 flows back to the cathode of battery BAT1, when adjusting the electric current of resistance R7 adjusting infrared transmitting tube D1 by third,
4th adjusting resistance R3 can limit the electric current on the series circuit, play the purpose of protection infrared transmitting tube D1.
The first end of current regulating circuit is connect with the anode of battery BAT1, and second end is connect with controller MCU, third end
It is connect with the input terminal of first switch control circuit.
Current regulating circuit includes that the first adjusting circuit, the second adjusting circuit and third adjust resistance R7, and first adjusts electricity
Road, the second adjusting circuit and third adjust resistance R7 and are parallel between the energization input and output end of controller MCU respectively, the
One end that the anode of three adjusting resistance R7 and battery BAT1 connect is the first end of current regulating circuit, third adjusting resistance R7 and
One end of the energization input connection of controller MCU is the second end of current regulating circuit, and first adjusts circuit, the second adjusting electricity
Road and third adjust the third end that one end that resistance R7 is connected in parallel is current regulating circuit.
Further, first adjust circuit include first adjust resistance R5, first adjust resistance R5 both ends respectively with control
The first control mouth GPIO of device MCU processed-1 connects with the input terminal of first switch control circuit, adjusts resistance by control first
Whether R5 accesses circuit, and then the equivalent resistance between controllable battery BAT1 and the collector of the first triode Q1, and then controls
System flows through the electric current of infrared transmitting circuit.
Second, which adjusts circuit, adjusts resistance R6 including second, and second adjusts the both ends of resistance R6 respectively with controller MCU's
Second control mouth GPIO-0 connects with the input terminal of first switch control circuit, and second, which adjusts the effect of resistance R6 and first, is adjusted
Resistance R5 is identical, but makes the resistance value of equivalent resistance between battery BAT1 and the collector of the first triode Q1 smaller, in turn
The electric current for flowing through infrared transmitting circuit is smaller.
Further, the anode of battery BAT1 is powered to controller MCU, and controller MCU controls the first adjusting circuit respectively
The working condition for adjusting circuit with second, so that first adjusts the adjusting resistance R6 of resistance R5 or second and third adjusting resistance R7 simultaneously
Connection forms the equivalent resistance between the anode of battery BAT1 and the input terminal of first switch control circuit.
When first switch control circuit and second switch control circuit are both turned on, equivalent resistance and infrared transmitting circuit are simultaneously
Connection, branch where equivalent resistance is equal with the voltage of infrared transmitting circuit, then by adjusting resistance R5, the second adjusting electricity for first
The resistance value of equivalent resistance is adjusted into circuit in the one or both of them parallel connection for hindering R6, and then adjust and flow through current regulation
The electric current of circuit, so that the electric current of infrared transmitting circuit is constant, when avoiding using battery BAT1 power supply, infrared transmitting tube D1 is led
The logical capacity loss for causing electric current to increase and accelerating battery BAT1, and flow through the immediate current increase of infrared transmitting tube D1 and drop
The problem of operating voltage that low battery BAT1 is used.
Further, shown in as shown in Figure 1, Figure 3 and Figure 4, in circuit shown in FIG. 1, as the electric current I for flowing through infrared transmitting tube D1
It is 3.4V for 550mA, the voltage U of battery BAT1, then the battery BAT1 power consumption (UxI) needed is 1870mW.Circuit shown in Fig. 2
In, when flow through infrared transmitting tube D1 electric current I be 330mA, battery BAT1 voltage U be 3.4V, then the battery BAT1 power consumption needed
It (UxI) is 1122mW.Then when the voltage of battery BAT1 is 3.4V, the circuit saving of circuit in Fig. 2 compared to Fig. 1, in Fig. 2
Power consumption 40%.
Also, in the circuit of Fig. 1, when the voltage of battery BAT1 is 2.6V, the electric current for flowing through infrared transmitting tube D1 is about
297mA；In the circuit of Fig. 2, when the voltage of battery BAT1 is 2.6V, the electric current for flowing through infrared transmitting tube D1 is about 290mA, existing
Having in technology, when the output voltage relative to battery BAT1 is between 2.6-3.4V, the distance of infrared emission is about 10-15m, when
The electric current for flowing through infrared transmitting tube D1 is 250-550mA, can regard as the required distance for meeting infrared emission, thus, Fig. 2 exists
Under the design requirement for meeting original infrared emission distance, the power consumption of circuit, and significant effect are reduced.
It should be understood that those skilled in the art can voluntarily adjust the 5th adjusting resistance R1, the first pull down resistor R2, the 4th tune
The ginseng of economize on electricity resistance R3, the second pull down resistor R4, infrared transmitting tube D1, the first triode Q1, the second triode Q2 and battery BAT1
Number.In the present embodiment, the resistance value of the first adjusting resistance R5 is 510 Ω, the second resistance value for adjusting resistance R6 is 51 Ω, third is adjusted
The resistance value of resistance R7 is 820 Ω, and further, those skilled in the art, can adaptation to local conditions on the basis of known the present embodiment
Modify above-mentioned parameter.
Embodiment two
The present embodiment provides a kind of control methods of infrared remote controller, applied to the controller MCU in embodiment one, such as
Shown in Fig. 6, method mainly includes the following steps that S101 to step S104.
In step s101, controller MCU judges the output voltage of battery BAT1 and the relationship of preset range, according to battery
Relationship between the output voltage and preset range of BAT1 determines the working condition of the control mouth of controller MCU.
In step s 102, when the output voltage of relationship instruction battery BAT1 is greater than the upper limit of preset range, controller
The first adjusting circuit of MCU control and the second adjusting circuit export high-impedance state, i.e., it is equal that the first adjusting circuit and second adjust circuit
Circuit is not accessed.
At this point, the present invention is additionally arranged third between the first triode Q1 and the anode of battery BAT1 adjusts resistance R7, because
This flows through the equivalent resistance maximum between the anode of battery BAT1 and the collector of the first triode Q1, flows through in this state
The electric current of the equivalent resistance is minimum, then the electric current flowed through on infrared transmitting circuit is maximum.
In step s 103, when the output voltage of relationship instruction battery BAT1 is in preset range or is equal to preset range
The upper limit when, controller MCU control first adjust circuit output high level, and control second adjust circuit output high-impedance state, i.e.,
First, which adjusts circuit, accesses circuit, and the second adjusting circuit does not access circuit.
At this point, resistance between the anode of battery BAT1 and the collector of the first triode Q1 be first adjust resistance R5 with
Third adjusts the equivalent resistance that resistance R7 parallel connection is formed, then in this state, adjusts circuit with first and the second adjusting circuit is equal
The state for not accessing circuit is compared, and in the case where battery BAT1 voltage is equal, flows through anode and the one or three pole of battery BAT1
Equivalent resistance between the collector of pipe Q1 is smaller, and the electric current for flowing through the equivalent resistance is larger, then flows through infrared transmitting circuit
Electric current is larger.
In step S104, when the output voltage of relationship instruction battery BAT1 is less than or equal to the lower limit of preset range,
The first adjusting circuit of controller MCU control and the second adjusting circuit export high level, and first, which adjusts circuit and second, adjusts electricity
Circuit is accessed on road.
At this point, resistance between the anode of battery BAT1 and the collector of the first triode Q1 be first adjust resistance R5,
Second, which adjusts resistance R6 and third, adjusts the equivalent resistance that resistance R7 parallel connection is formed, with upper two states (first adjust circuit and
Second adjusting circuit does not access the state of circuit and the first adjusting circuit and second adjusts the shape that circuit does not access circuit
State) it compares, in the case where battery BAT1 voltage is equal, the resistance value of the equivalent resistance is minimum, flows through current regulating circuit
Electric current is maximum, thus the electric current for flowing through infrared transmitting circuit is maximum.
After infrared transmitting circuit battery has fired, controller MCU control first adjusts circuit and the second adjusting circuit is defeated
High-impedance state out, after the electricity without consuming battery BAT1.
Controller MCU by itself relationship the output voltage of battery BAT1 between, change battery BAT1 anode and
Equivalent resistance between the collector of first triode Q1, when the output voltage of battery BAT1 is high, the resistance value of equivalent resistance is high,
When the output voltage of battery BAT1 is low, the resistance value of equivalent resistance is low, and the voltage for making battery BAT1 within a preset range, flows through red
The electric current of outer transmitting tube D1 tends to be constant, therefore when the output voltage of battery BAT1 is identical, compared to the prior art, the present invention
In electric current it is smaller, effectively reduce power supply power consumption when infrared emission.
Further, as shown in figure 5, if controller MCU can also be worked normally in 2.3V, single battery BAT1 is
1.15V, corresponding discharge time are about 60 minutes；And single battery BAT1 is 1.3V, corresponding discharge time is about 17 minutes,
So the design parameter in single battery BAT11.3V is the parameter of normal use, then preset range is set as 2.4~
3.4V can either meet the power demand of controller MCU, and design parameter can be made to meet conventional use.
Preferably, preset range is 2.6~3.4V, and circuit of the electric current compared with Fig. 1 of infrared transmitting tube D1 is flowed through in the present invention
Small, infrared remote controller can extend the service life of battery BAT1.
Embodiment three
Be provided with remote controler with more and more equipment with the development of science and technology, equipment using IR remote controller have at
This is low, realizes the features such as simple, thus in order to meet can far distance control, operator generally uses powerful infrared hair
Optical diode.
The present embodiment provides a kind of IR remote controller, which includes infrared remote controller, infrared by controlling
Remote control circuit controls remote control effect, on the basis of meeting original transmitting range, reduce using infrared light-emitting diode as
Power consumption when infrared emission device.
While it is disclosed that embodiment it is as above, but content only to facilitate understand the present invention and use
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from the present invention
Under the premise of disclosed spirit and scope, any modification and change can be made in the implementing form and in details, but this
The protection scope of invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (11)
1. a kind of infrared remote controller, which is characterized in that including controller, battery, infrared transmitting circuit, ON-OFF control circuit and
Current regulating circuit,
Wherein, the ON-OFF control circuit is configured to be controlled by the control signal of the controller output, described infrared to switch
The working condition and closed state of transmit circuit,
The current regulating circuit be configured to be controlled by the controller based on the battery output voltage and the adjusting of determination
Signal is maintained within a preset range to adjust the electric current for flowing through its own with flowing through the electric current of the infrared transmitting circuit.
2. infrared remote controller according to claim 1, it is characterised in that: the ON-OFF control circuit includes first switch
Control circuit and second switch control circuit,
Wherein, the first switch control circuit is configured to be controlled by the control signal of the controller output and be turned on or off
The second switch control circuit,
The second switch control circuit is configured to the control signal conduction issued according to the first switch control circuit or pass
Break the infrared transmitting circuit.
3. infrared remote controller according to claim 2, it is characterised in that: the first end of the current regulating circuit and institute
The anode connection of battery is stated, second end is connect with the controller, the input terminal at third end and the first switch control circuit
Connection,
The control terminal of the first switch control circuit is connect with the controller, the output end of the first switch circuit and institute
The control terminal connection of second switch control circuit is stated,
One end of the infrared transmitting circuit is connect with the anode of the battery, and the other end passes through the second switch control circuit
It is connect with the cathode of the battery.
4. infrared remote controller according to claim 3, it is characterised in that: the current regulating circuit includes the first adjusting
Circuit, second adjust circuit and third adjusting resistance, and described first, which adjusts circuit, the second adjusting circuit and third, adjusts resistance point
It is not parallel between the energization input and output end of the controller,
The third adjusts the first end that one end that resistance is connect with the anode of the battery is the current regulating circuit, described
Third adjust the energization input connection of resistance and controller one end be the current regulating circuit second end, described first
It adjusts circuit, the second adjusting circuit and adjusts the third end that one end that resistor coupled in parallel connects is the current regulating circuit with third.
5. infrared remote controller according to claim 4, it is characterised in that: described first adjusts circuit is adjusted including first
Resistance, described first adjust resistance both ends it is defeated with the first control mouth of controller and the first switch control circuit respectively
Enter end connection.
6. infrared remote controller according to claim 4, it is characterised in that: described second adjusts circuit is adjusted including second
Resistance, it is described second adjust resistance both ends respectively with the second control mouth of the controller and the first switch control circuit
Input terminal connection.
7. infrared remote controller according to claim 4, it is characterised in that: the first switch control circuit is the one or three
Pole pipe,
The base stage of first triode is the control terminal of the first switch control circuit, the extremely described first switch control electricity of current collection
The input terminal on road emits the output end of the extremely described first switch circuit.
8. infrared remote controller according to claim 4, it is characterised in that: the second switch control circuit is the two or three
Pole pipe,
The base stage of second triode is the control terminal of the second switch control circuit, and collector and the infrared transmitting circuit connect
It connects, emitter is connect with the cathode of the battery.
9. the infrared remote controller according to any one of claim 4-8, it is characterised in that: the infrared transmitting circuit packet
Infrared transmitting tube is included,
The anode of the infrared transmitting tube is connect with the anode of the battery, the input of cathode and the second switch control circuit
End connection.
10. a kind of control method of infrared remote controller, applied to infrared remote controller described in any one of claim 4-9
In controller, which is characterized in that the described method includes:
Controller judges the output voltage of battery and the relationship of preset range；
When the relationship indicate the battery output voltage be greater than preset range the upper limit when, controller control first adjust electricity
Road and the second adjusting circuit export high-impedance state；
When the relationship indicates that the output voltage of the battery is in the upper limit in preset range or equal to preset range, control
Device control first adjusts circuit output high level, and controls second and adjust circuit output high-impedance state；
When the relationship indicate the battery output voltage be less than or equal to preset range lower limit when, controller control first
It adjusts circuit and the second adjusting circuit exports high level；
After the infrared transmitting circuit battery has fired, controller control described first adjusts circuit and the second adjusting circuit is defeated
High-impedance state out.
11. a kind of IR remote controller, it is characterised in that: including infrared remote controller as claimed in any one of claims 1-9 wherein.
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| CN201910564677.0A CN110247648A (en) | 2019-06-27 | 2019-06-27 | Infrared remote controller and its control method, IR remote controller |
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| CN201910564677.0A CN110247648A (en) | 2019-06-27 | 2019-06-27 | Infrared remote controller and its control method, IR remote controller |
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| CN202353871U (en) * | 2011-11-15 | 2012-07-25 | 樱花卫厨（中国）股份有限公司 | Constant-current adjustable driving circuit for light emitting diode (LED) lamp |
| CN203260184U (en) * | 2013-03-21 | 2013-10-30 | 深圳创维－Rgb电子有限公司 | Infrared remote controller |
| CN203405950U (en) * | 2013-08-27 | 2014-01-22 | 深圳Tcl新技术有限公司 | Infrared remote control circuit and remote control unit |
| US20150042179A1 (en) * | 2013-08-08 | 2015-02-12 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd | Remote control circuit |
| CN206060247U (en) * | 2016-06-21 | 2017-03-29 | 广东金莱特电器股份有限公司 | New type of current adjustable band defencive function charging circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202353871U (en) * | 2011-11-15 | 2012-07-25 | 樱花卫厨（中国）股份有限公司 | Constant-current adjustable driving circuit for light emitting diode (LED) lamp |
| CN203260184U (en) * | 2013-03-21 | 2013-10-30 | 深圳创维－Rgb电子有限公司 | Infrared remote controller |
| US20150042179A1 (en) * | 2013-08-08 | 2015-02-12 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd | Remote control circuit |
| CN203405950U (en) * | 2013-08-27 | 2014-01-22 | 深圳Tcl新技术有限公司 | Infrared remote control circuit and remote control unit |
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