CN210777124U - Remote controller chip circuit with internal boosting function and remote controller - Google Patents
Remote controller chip circuit with internal boosting function and remote controller Download PDFInfo
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- CN210777124U CN210777124U CN201922124183.9U CN201922124183U CN210777124U CN 210777124 U CN210777124 U CN 210777124U CN 201922124183 U CN201922124183 U CN 201922124183U CN 210777124 U CN210777124 U CN 210777124U
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Abstract
The utility model discloses a remote controller chip circuit and remote controller with inside function of stepping up, the chip circuit includes central control unit, infrared drive unit, key drive unit, step up unit and charge management unit, the last singlechip crystal oscillator that is connected with of central control unit, infrared drive unit is connected with central control unit, be provided with infrared LED interface on the infrared drive unit, key drive unit and central control unit are connected, be provided with key interface on the key drive unit, the last power input port that is connected with of charge management unit, the last lithium battery interface that is connected with of charge management unit, step up unit and lithium battery interface connection, step up the unit and be connected with central control unit, be connected with power output port on the unit that steps up. The utility model discloses there is boost circuit at chip internal integration, and the accessible lithium cell supplies power, and can act as the usefulness of portable power source temporarily.
Description
Technical Field
The utility model discloses a remote controller chip circuit, especially a remote controller chip circuit and remote controller with inside function of stepping up.
Background
The remote controller is a wireless transmitting device, and codes the key information by modern digital coding technology, transmits light waves by an infrared diode, the light waves convert received infrared signals into electric signals by an infrared receiver of a receiver, the electric signals are decoded by a processor, and corresponding instructions are demodulated to achieve the operation requirements for controlling equipment such as a set top box, a television and the like. The conventional remote controller is internally provided with a single chip microcomputer with a built-in program, the external device such as an infrared LED and a key is connected to the external device, and for the convenience of use, a remote controller manufacturer writes a preset program into the single chip microcomputer, so that a specific remote controller chip is formed, and the remote controller is more convenient to use.
The current remote controllers are powered by dry batteries, although the power consumption is low, the batteries need to be replaced, and the discarded dry batteries can pollute the environment more or less. With the technology of the lithium battery becoming more mature, the lithium battery is more and more widely applied in the life of people, and the adoption of the lithium battery to supply power to the remote controller slowly becomes a new trend.
Disclosure of Invention
Adopt the dry battery to supply power to the remote controller among the above-mentioned prior art, can cause the shortcoming of pollution to the environment, the utility model provides a remote controller chip circuit and remote controller with inside function of stepping up, it has boost circuit at chip internal integration, and the accessible lithium cell supplies power, and can act as portable power source's usefulness temporarily.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a remote controller chip circuit with inside function of stepping up, the chip circuit includes central control unit, infrared drive unit, button drive unit, step up unit and charge management unit, the last singlechip crystal oscillator that is connected with of central control unit, infrared drive unit is connected with central control unit, be provided with infrared LED interface on the infrared drive unit, button drive unit is connected with central control unit, be provided with the button interface on the button drive unit, be connected with power input port on the charge management unit, be connected with lithium battery interface on the charge management unit, step up unit and lithium battery interface connection, step up the unit and be connected with central control unit, be connected with power output port on the unit that steps up.
The utility model provides a remote controller, the remote controller includes as above-mentioned remote controller chip, the lithium cell, the button, infrared LED, power input interface and power output interface, the lithium cell is connected on the power port of remote controller chip, the keying is connected on the key input interface of remote controller chip, infrared LED connects on infrared output interface, power input interface connects on the power input port of chip, power output interface connects on the power output port of chip.
The utility model provides a technical scheme that its technical problem adopted further still includes:
the key driving unit adopts a 4-8 mesh key layout mode and comprises 4 driving input lines and 8 driving output lines, wherein the 4 driving input lines are respectively connected with a positive power supply through pull-up resistors, the driving output lines and the driving input lines are distributed in a 4-8 mesh structure, and each node is provided with a key.
The infrared driving unit comprises a triode Q1, a current-limiting resistor R5 and a current-limiting resistor R6, the base electrode of the triode Q1 is connected with a data pin of the central control unit through the current-limiting resistor R5, the emitting electrode of the triode Q1 is grounded, the collecting electrode of the triode Q1 is used as an infrared output interface of the infrared driving unit and is used for being connected with an infrared LED, and the current-limiting resistor R6 is connected between the collecting electrode of the triode Q1 and the infrared output interface in series.
The charging management unit adopts a charging management chip, VIN and CE ports of the charging management chip are respectively connected with a positive power supply of the power supply input port, CHRG ports and FAULT ports of the charging management chip are respectively connected with the positive power supply of the power supply input port through a current-limiting resistor, BAT ports of the charging management chip are used for being connected with a lithium battery, and a filter capacitor C7 is connected between the BAT ports of the charging management chip and the ground.
The TEMP port of the charging management chip is also provided with a temperature detection interface, a resistor R17 is connected between the TEMP port and the ground, and the TEMP port and the positive power supply end are connected with a resistor R16.
The boost unit adopts an equivalent boost voltage stabilization chip, a VIN port of the boost voltage stabilization chip is used for being connected with a lithium battery, an inductor L1 is connected between the VIN port and an LX port of the boost voltage stabilization chip, a filter capacitor C8 and a filter capacitor C9 are connected between the VIN port of the boost voltage stabilization chip and the ground, the filter capacitor C8 and the filter capacitor C9 are connected in parallel, an OUT port of the boost voltage stabilization chip is used for being connected with a power output port, a filter capacitor C10 and a filter capacitor C11 are connected between the OUT port of the boost voltage stabilization chip and the ground, the filter capacitor C10 and the filter capacitor C11 are connected in parallel, a voltage dividing resistor network is connected to the FB port of the boost voltage stabilization chip and comprises a resistor R21 and a resistor R22, a resistor R21 and a resistor R22 are connected between the power output port and the ground in series, and a common end of the resistor R21 and the resistor R22 is.
The central control unit is connected with a reset unit, the reset unit comprises a key reset unit and a watchdog unit, the key reset unit comprises a reset key interface and a resistor R11, the reset key interface and the resistor R11 are connected between a positive power supply and the ground in series, a capacitor C5 is connected with the reset key interface in parallel, a resistor R12 is connected with the resistor R11 in parallel, a capacitor C5 and a resistor R12 form a power-on reset unit, the watchdog unit adopts a watchdog chip, a VCC port of the watchdog chip is connected with the positive power supply, a GND port of the watchdog chip is grounded, an MR port and a WDO port of the watchdog chip are in short circuit, a RST end of the watchdog chip is connected with a RST port of the central control unit, a WDI port of the watchdog chip is connected with an I/O port of the central control unit, a PFO port of the watchdog chip is connected with an external interrupt interface of the central control unit, and a PFO port of the watchdog chip is connected with an INT0 port of the central control unit, the PFI port of the watchdog chip is connected with a voltage-dividing resistor network, the voltage-dividing resistor network comprises a resistor R13 and a resistor R14 which are connected between a positive power supply and the ground in series, and the PFI port of the watchdog chip is connected with the common end of the resistor R13 and the resistor R14.
The display driving unit is connected to the central control unit and comprises a triode Q2, a current-limiting resistor R7 and a current-limiting resistor R8, the base electrode of the triode Q2 is connected with one data pin of the central control unit through the current-limiting resistor R7, the emitting electrode of the triode Q2 is grounded, the collector electrode of the triode Q2 serves as an LED output interface of the display driving unit, and the collector electrode of the triode Q2 and the LED output interface are connected with the current-limiting resistor R8 in series.
The central control unit is connected with a buzzer driving unit, the buzzer driving unit comprises a triode Q3, a current-limiting resistor R9 and a current-limiting resistor R10, the base electrode of the triode Q3 is connected with a data pin of the central control unit through the current-limiting resistor R9, the emitting electrode of the triode Q3 is grounded, the collector electrode of the triode Q3 is used as the buzzer output interface of the buzzer driving unit, and the current-limiting resistor R10 is connected between the collector electrode of the triode Q3 and the buzzer output interface in series.
The utility model has the advantages that: the utility model discloses there is boost circuit at chip internal integration, and the accessible lithium cell supplies power, and can act as the usefulness of portable power source temporarily.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
Fig. 1 is a block diagram of the circuit of the present invention.
Fig. 2 is a schematic diagram of the main control circuit of the present invention.
Fig. 3 is a schematic diagram of the boost and power management circuit of the present invention.
Fig. 4 is a schematic circuit diagram of the interface portion of the indicator light and the display screen according to the present invention.
Detailed Description
The embodiment is a preferred embodiment of the present invention, and other principles and basic structures are the same as or similar to those of the embodiment, and are within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention mainly comprises a central control unit, an infrared driving unit, a key driving unit, a boosting unit and a charging management unit, wherein the central control unit is connected with a single chip crystal oscillator, the infrared driving unit is connected with the central control unit and is used for receiving an infrared remote control signal output by the central control unit, the infrared driving unit is provided with an infrared LED interface, the infrared output interface is used for connecting an infrared LED and outputting the infrared remote control signal, the key driving unit is connected with the central control unit, the key driving unit is provided with a key interface and is used for connecting with a keyboard to perform key input and inputting key information to the central control unit, the charging management unit is connected with a power input port, the power input port is used for inputting an external power supply, the charging management unit is connected with a lithium battery interface, be used for being connected with the lithium cell, supply power for the lithium cell, the unit and lithium cell interface connection step up for receive lithium cell output power, the unit that steps up is connected with central control unit, gives the utility model discloses the power supply is connected with power output port on the unit that steps up, is used for with power output, for other consumer supplies power, will the utility model relates to a treasured that charges uses.
In this embodiment, the central control unit is an MCU, and in this embodiment, a well-known 51-series MCU is taken as an example for description, and during specific implementation, an MCU with another structure may be used as the central control unit according to actual needs. The key drive unit adopts 4 the netted key layout mode of 8, 4 drive input lines promptly, 8 drive output lines, is connected with positive power supply through pull-up resistance on 4 drive input lines respectively, through the utility model discloses direct drive keyboard, drive output line are 4 the 8 network structure with the drive input line and distribute, and every node sets up a button.
In this embodiment, the infrared driving unit includes a transistor Q1, a current limiting resistor R5, and a current limiting resistor R6, a base of the transistor Q1 is connected to a data pin of the MCU through the current limiting resistor R5, an emitter of the transistor Q1 is grounded, a collector of the transistor Q1 is used as an infrared output interface of the infrared driving unit, and is connected to the infrared LED, and the current limiting resistor R6 is connected in series between the collector of the transistor Q1 and the infrared output interface.
In this embodiment, the charging management unit uses an equivalent charging management chip, in this embodiment, the charging management chip is equivalent to a charging management chip with a model of CN3052A, VIN and CE ports of the charging management chip are respectively connected to a positive power supply of the power input port, a CHRG port and a FAULT port of the charging management chip are respectively connected to the positive power supply of the power input port through a current-limiting resistor, a BAT port of the charging management chip is connected to a lithium battery for charging the lithium battery, and a filter capacitor C7 is connected between the BAT port of the charging management chip and the ground. In this embodiment, a temperature detection interface is further disposed on the TEMP port of the charging management chip and used for connecting a thermistor, a resistor R17 is connected between the TEMP port and the ground, and a resistor R16 is connected between the TEMP port and the positive power supply terminal.
In this embodiment, the boost unit adopts an equivalent boost voltage stabilization chip, in this embodiment, the boost voltage stabilization chip is equivalent to a boost voltage stabilization chip with model number PS7516, a VIN port of the boost voltage stabilization chip is used for connecting with a lithium battery, an inductor L1 is connected between the VIN port and an LX port of the boost voltage stabilization chip, a filter capacitor C8 and a filter capacitor C9 are connected between the VIN port of the boost voltage stabilization chip and ground, the filter capacitor C8 and the filter capacitor C9 are connected in parallel, an OUT port of the boost voltage stabilization chip is used for connecting with a power output port, a filter capacitor C10 and a filter capacitor C11 are connected between the OUT port of the boost voltage stabilization chip and ground, a filter capacitor C10 and a filter capacitor C11 are connected in parallel, a voltage dividing resistor network is connected on a FB port of the boost voltage stabilization chip, the voltage dividing resistor network includes a resistor R21 and a resistor R22, a resistor R21 and a resistor R22 are connected in, the common end of the resistor R21 and the resistor R22 is connected with the FB port of the voltage boosting and stabilizing chip.
In this embodiment, the central control unit is connected with a reset unit, the reset unit includes a key reset unit and a watchdog unit, in this embodiment, the key reset unit includes a reset key interface and a resistor R11, the reset key interface and the resistor R11 are connected in series between the positive power supply and the ground, a capacitor C5 is connected in parallel with the reset key interface, a resistor R12 is connected in parallel with the resistor R11, and the capacitor C5 and the resistor R12 form a power-on reset unit to perform power-on reset. In this embodiment, the watchdog unit is equivalent to a watchdog chip with a model MAX813L, and in a specific implementation, the watchdog unit may also be equivalent to other models of watchdog chips, a VCC port of the watchdog chip is connected to the positive power supply, a GND port of the watchdog chip is connected to a GND port, an MR port and a WDO port of the watchdog chip are shorted, a RST end of the watchdog chip is connected to a RST port of the central control unit, a WDI port of the watchdog chip is connected to an I/O port of the central control unit, in this embodiment, a WDI port of the watchdog chip is connected to a P2.4 port of the central control unit, a PFO port of the watchdog chip is connected to an external interrupt interface of the central control unit, in this embodiment, a PFO port of the watchdog chip is connected to an INT0 port of the central control unit, a PFI port of the watchdog chip is connected to a divider resistor network, and the divider resistor network includes a resistor R13 and a resistor R14 connected in series between the positive power supply and ground, the PFI port of the watchdog chip is connected to the common terminal of resistor R13 and resistor R14.
In this embodiment, the central control unit is connected with a liquid crystal driving module, the liquid crystal driving module is equivalent to a liquid crystal driving chip with a 12864S model, and during specific implementation, the liquid crystal driving module can also be equivalent to liquid crystal driving chips with other models, and the liquid crystal driving module is provided with a liquid crystal interface for being connected with an external small-sized liquid crystal screen.
In this embodiment, the central control unit is connected to a display driving unit, the display driving unit includes a transistor Q2, a current limiting resistor R7, and a current limiting resistor R8, a base of the transistor Q2 is connected to a data pin of the MCU through the current limiting resistor R7, an emitter of the transistor Q2 is grounded, a collector of the transistor Q2 is used as an LED output interface of the display driving unit and is connected to the indication LED, and a collector of the transistor Q2 is connected to the LED output interface in series through the current limiting resistor R8.
In this embodiment, the central control unit is connected with a buzzer driving unit, the buzzer driving unit includes a triode Q3, a current limiting resistor R9 and a current limiting resistor R10, the base of the triode Q3 is connected with a data pin of the MCU through the current limiting resistor R9, the emitter of the triode Q3 is grounded, the collector of the triode Q3 is used as the buzzer output interface of the buzzer driving unit, and is used for being connected with an external buzzer, and the current limiting resistor R10 is connected in series between the collector of the triode Q3 and the buzzer output interface.
The utility model discloses protect a remote controller simultaneously, the remote controller includes above-mentioned remote controller chip, the lithium cell, the button, infrared LED, power input interface and power output interface, the lithium cell is connected on the power port of remote controller chip, the keying is connected on the key input interface of remote controller chip, infrared LED connects on infrared output interface, power input interface connects on the power input port of chip, power output interface connects on the power output port of chip.
In this embodiment, a liquid crystal screen is connected to a liquid crystal interface of the remote controller chip, an LED output interface of the remote controller chip is connected to an LED for indication, and a buzzer is connected to a buzzer output interface of the remote controller chip.
The utility model discloses there is boost circuit at chip internal integration, and the accessible lithium cell supplies power, and can act as the usefulness of portable power source temporarily.
Because the service environment of remote controller is closer apart from the socket ratio, it is more convenient to charge, so, often can insert the electricity and charge, the utility model discloses there is boost circuit at chip internal integration, and the accessible lithium cell supplies power, and can act as the use of portable power source temporarily.
Claims (10)
1. The utility model provides a remote controller chip circuit with inside function of stepping up which characterized by: the chip circuit include central control unit, infrared drive unit, button drive unit, the unit and the management unit that charges step up, the last singlechip crystal oscillator that is connected with of central control unit, infrared drive unit is connected with central control unit, be provided with infrared LED interface on the infrared drive unit, button drive unit is connected with central control unit, be provided with the button interface on the button drive unit, be connected with power input port on the management unit that charges, be connected with lithium battery interface on the management unit that charges, the unit and lithium battery interface connection step up, the unit and the central control unit connection step up, be connected with power output port on the unit that steps up.
2. The remote control chip circuit with internal boosting function according to claim 1, wherein: the key driving unit adopts a 4-8 mesh key layout mode and comprises 4 driving input lines and 8 driving output lines, wherein the 4 driving input lines are respectively connected with a positive power supply through pull-up resistors, the driving output lines and the driving input lines are distributed in a 4-8 mesh structure, and each node is provided with a key.
3. The remote control chip circuit with internal boosting function according to claim 1, wherein: the infrared driving unit comprises a triode Q1, a current-limiting resistor R5 and a current-limiting resistor R6, the base electrode of the triode Q1 is connected with a data pin of the central control unit through the current-limiting resistor R5, the emitting electrode of the triode Q1 is grounded, the collecting electrode of the triode Q1 is used as an infrared output interface of the infrared driving unit and is used for being connected with an infrared LED, and the current-limiting resistor R6 is connected between the collecting electrode of the triode Q1 and the infrared output interface in series.
4. The remote control chip circuit with internal boosting function according to claim 1, wherein: the charging management unit adopts a charging management chip, VIN and CE ports of the charging management chip are respectively connected with a positive power supply of the power supply input port, CHRG ports and FAULT ports of the charging management chip are respectively connected with the positive power supply of the power supply input port through a current-limiting resistor, BAT ports of the charging management chip are used for being connected with a lithium battery, and a filter capacitor C7 is connected between the BAT ports of the charging management chip and the ground.
5. The remote control chip circuit with internal boosting function according to claim 4, wherein: the TEMP port of the charging management chip is also provided with a temperature detection interface, a resistor R17 is connected between the TEMP port and the ground, and the TEMP port and the positive power supply end are connected with a resistor R16.
6. The remote control chip circuit with internal boosting function according to claim 1, wherein: the boost unit adopts an equivalent boost voltage stabilization chip, a VIN port of the boost voltage stabilization chip is used for being connected with a lithium battery, an inductor L1 is connected between the VIN port and an LX port of the boost voltage stabilization chip, a filter capacitor C8 and a filter capacitor C9 are connected between the VIN port of the boost voltage stabilization chip and the ground, the filter capacitor C8 and the filter capacitor C9 are connected in parallel, an OUT port of the boost voltage stabilization chip is used for being connected with a power output port, a filter capacitor C10 and a filter capacitor C11 are connected between the OUT port of the boost voltage stabilization chip and the ground, the filter capacitor C10 and the filter capacitor C11 are connected in parallel, a voltage dividing resistor network is connected to the FB port of the boost voltage stabilization chip and comprises a resistor R21 and a resistor R22, a resistor R21 and a resistor R22 are connected between the power output port and the ground in series, and a common end of the resistor R21 and the resistor R22 is.
7. The remote control chip circuit with internal boosting function according to claim 1, wherein: the central control unit is connected with a reset unit, the reset unit comprises a key reset unit and a watchdog unit, the key reset unit comprises a reset key interface and a resistor R11, the reset key interface and the resistor R11 are connected between a positive power supply and the ground in series, a capacitor C5 is connected with the reset key interface in parallel, a resistor R12 is connected with the resistor R11 in parallel, a capacitor C5 and a resistor R12 form a power-on reset unit, the watchdog unit adopts a watchdog chip, a VCC port of the watchdog chip is connected with the positive power supply, a GND port of the watchdog chip is grounded, an MR port and a WDO port of the watchdog chip are in short circuit, a RST end of the watchdog chip is connected with a RST port of the central control unit, a WDI port of the watchdog chip is connected with an I/O port of the central control unit, a PFO port of the watchdog chip is connected with an external interrupt interface of the central control unit, and a PFO port of the watchdog chip is connected with an INT0 port of the central control unit, the PFI port of the watchdog chip is connected with a voltage-dividing resistor network, the voltage-dividing resistor network comprises a resistor R13 and a resistor R14 which are connected between a positive power supply and the ground in series, and the PFI port of the watchdog chip is connected with the common end of the resistor R13 and the resistor R14.
8. The remote control chip circuit with internal boosting function according to claim 1, wherein: the display driving unit is connected to the central control unit and comprises a triode Q2, a current-limiting resistor R7 and a current-limiting resistor R8, the base electrode of the triode Q2 is connected with one data pin of the central control unit through the current-limiting resistor R7, the emitting electrode of the triode Q2 is grounded, the collector electrode of the triode Q2 serves as an LED output interface of the display driving unit, and the collector electrode of the triode Q2 and the LED output interface are connected with the current-limiting resistor R8 in series.
9. The remote control chip circuit with internal boosting function according to claim 1, wherein: the central control unit is connected with a buzzer driving unit, the buzzer driving unit comprises a triode Q3, a current-limiting resistor R9 and a current-limiting resistor R10, the base electrode of the triode Q3 is connected with a data pin of the central control unit through the current-limiting resistor R9, the emitting electrode of the triode Q3 is grounded, the collector electrode of the triode Q3 is used as the buzzer output interface of the buzzer driving unit, and the current-limiting resistor R10 is connected between the collector electrode of the triode Q3 and the buzzer output interface in series.
10. A remote controller is characterized in that: the remote controller comprises the remote controller chip as claimed in any one of claims 1 to 9, a lithium battery, a key, an infrared LED, a power input interface and a power output interface, wherein the lithium battery is connected to the power port of the remote controller chip, the key is connected to the key input interface of the remote controller chip, the infrared LED is connected to the infrared output interface, the power input interface is connected to the power input port of the chip, and the power output interface is connected to the power output port of the chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922124183.9U CN210777124U (en) | 2019-12-02 | 2019-12-02 | Remote controller chip circuit with internal boosting function and remote controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922124183.9U CN210777124U (en) | 2019-12-02 | 2019-12-02 | Remote controller chip circuit with internal boosting function and remote controller |
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| Publication Number | Publication Date |
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| CN210777124U true CN210777124U (en) | 2020-06-16 |
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| CN201922124183.9U Active CN210777124U (en) | 2019-12-02 | 2019-12-02 | Remote controller chip circuit with internal boosting function and remote controller |
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| CN (1) | CN210777124U (en) |
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