CN211454316U - Intelligent household appliance control system - Google Patents
Intelligent household appliance control system Download PDFInfo
- Publication number
- CN211454316U CN211454316U CN202020413810.0U CN202020413810U CN211454316U CN 211454316 U CN211454316 U CN 211454316U CN 202020413810 U CN202020413810 U CN 202020413810U CN 211454316 U CN211454316 U CN 211454316U
- Authority
- CN
- China
- Prior art keywords
- resistor
- triode
- circuit
- power supply
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Landscapes
- Rectifiers (AREA)
Abstract
The utility model relates to a household electrical appliances control field discloses an intelligent household electrical appliances control system, including singlechip, clock module, power module, reset circuit, watchdog circuit, alarm module, display screen, sound card interface circuit, serial ports and net gape, the singlechip respectively with clock module, power module, reset circuit, watchdog circuit, alarm module, display screen, sound card interface circuit, serial ports and net gape connection; the power supply module comprises a power supply source, a band-gap reference voltage source, a first potentiometer, a second resistor, a third resistor, a first operational amplifier, a fourth resistor, a first triode, a first diode, a first capacitor, a second triode, a unidirectional thyristor and a voltage output end, wherein the power supply source is respectively connected with a first pin of the band-gap reference voltage source, one end of the fourth resistor, a collector of the first triode and a collector of the second triode. The utility model discloses circuit structure is comparatively simple, the cost is lower, the security and the reliability of convenient maintenance, circuit are higher.
Description
Technical Field
The utility model relates to a household electrical appliances control field, in particular to intelligence household electrical appliances control system.
Background
With the improvement of the living standard of people, people pursue the life quality to be higher, and the intelligent household appliance control system brings great convenience to the life of people. Some existing intelligent household appliance control systems can output signals to the MCU controller through a telephone, reliably control the operation of intelligent household appliances and bring convenience to users. The PC outputs signals to the MCU controller, so that the running of the intelligent household appliance can be remotely controlled, and the intelligent household appliance has the characteristics of convenience and quickness. Fig. 1 is a schematic circuit diagram of a power supply portion of a conventional intelligent household appliance control system, and it can be seen from fig. 1 that the power supply portion of the conventional intelligent household appliance control system uses many components and parts, and has a complex circuit structure, high hardware cost and inconvenient maintenance. In addition, because the power supply part of the traditional intelligent household appliance control system lacks corresponding circuit protection functions, for example: the safety and reliability of the circuit are poor due to the lack of the current-limiting protection function.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a circuit structure comparatively simple, the cost is lower, the security and the higher intelligent household electrical appliances control system of reliability of convenient maintenance, circuit.
The utility model provides a technical scheme that its technical problem adopted is: an intelligent household appliance control system is constructed, and comprises a single chip microcomputer, a clock module, a power supply module, a reset circuit, a watchdog circuit, an alarm module, a display screen, a sound card interface circuit, a serial port and a network port, wherein the single chip microcomputer is respectively connected with the clock module, the power supply module, the reset circuit, the watchdog circuit, the alarm module, the display screen, the sound card interface circuit, the serial port and the network port;
the power supply module comprises a power supply source, a band-gap reference voltage source, a first potentiometer, a second resistor, a third resistor, a first operational amplifier, a fourth resistor, a first triode, a first diode, a first capacitor, a second triode, a unidirectional thyristor and a voltage output end, wherein the power supply source is respectively connected with one end of a first pin of the band-gap reference voltage source, one end of the fourth resistor, a collector of the first triode and a collector of the second triode, a second pin of the band-gap reference voltage source is connected with one fixed end of the first potentiometer, a sliding end of the first potentiometer is connected with a non-inverting input end of the first operational amplifier, an inverting input end of the first operational amplifier is respectively connected with one end of the second resistor and one end of the third resistor, and a base of the first triode is connected with the other end of the fourth resistor, the emitting electrode of the first triode is connected with the anode of the first diode, the cathode of the first diode is respectively connected with one end of the first capacitor and the control electrode of the unidirectional thyristor, the output end of the first operational amplifier is respectively connected with the base electrode of the second triode and the anode of the unidirectional thyristor, the emitting electrode of the second triode is connected with one end of the voltage output end, and the third pin of the band-gap reference voltage source is respectively connected with the other fixed end of the first potentiometer, the other end of the third resistor, the other end of the first capacitor, the cathode of the unidirectional thyristor and the other end of the voltage output end.
In the intelligent household electrical appliance control system of the present invention, the first diode is of a type S-183T.
In the intelligent household electrical appliance control system, the power supply module further comprises a fifth resistor, one end of the fifth resistor is connected with the base of the second triode, and the other end of the fifth resistor is connected with the anode of the unidirectional thyristor.
In the intelligent household electrical appliance control system, the resistance of the fifth resistor is 36k Ω.
In the intelligent household electrical appliance control system of the present invention, the first triode is an NPN-type triode.
In the intelligent household electrical appliance control system, the second triode is an NPN-type triode.
Implement the utility model discloses an intelligence household electrical appliances control system has following beneficial effect: the power supply module is compared with the power supply part of the traditional intelligent household appliance control system, the used components are fewer, and due to the fact that some components are saved, the hardware cost can be reduced, in addition, the first diode is used for current limiting protection, the circuit structure is simple, the cost is low, the maintenance is convenient, and the safety and the reliability of the circuit are high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a power supply portion of a conventional intelligent home appliance control system.
Fig. 2 is a schematic structural diagram of an embodiment of the intelligent household appliance control system of the present invention;
fig. 3 is a schematic circuit diagram of the power supply module in the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses in the embodiment of intelligent household electrical appliance control system, this intelligent household electrical appliance control system's schematic structure diagram is shown in FIG. 2. In fig. 2, this intelligent household electrical appliance control system includes singlechip 1, clock module 2, power module 3, reset circuit 4, watchdog circuit 5, alarm module 6, display screen 7, sound card interface circuit 8, serial ports 9 and net gape 10, singlechip 1 respectively with clock module 2, power module 3, reset circuit 4, watchdog circuit 5, alarm module 6, display screen 7, sound card interface circuit 8, serial ports 9 and net gape 10 are connected.
The type of the single chip microcomputer 1 is S3C2410ARM, the sound card interface circuit 8 is connected with a telephone, and the sound card interface circuit 8 adopts a UDA1341TS digital audio codec. This intelligence household electrical appliances control system accessible telephone is exported for singlechip 1 signal, and singlechip 1's control output circuit adopts the multi-way relay switch circuit, and the operation of intelligent household electrical appliances is controlled reliably to singlechip 1, convenience of customers's use, and this intelligence household electrical appliances control system accessible PC exports for singlechip 1 signal, but the operation of remote control intelligence household electrical appliances, has convenient and fast's characteristics. The system is prevented from entering a dead cycle by a watchdog circuit 5. And this intelligence household electrical appliances control system adopts the bell alarm module, is convenient for indicate the user in time to maintain.
In this embodiment, the clock module 2, the reset circuit 4, the watchdog circuit 5, the alarm module 6, the display 7, the sound card interface circuit 8, the serial port 9, and the network port 10 are all implemented by using a structure in the prior art, and the working principle thereof is also the working principle in the prior art, which is not described in detail herein.
Fig. 3 is a schematic circuit diagram of the power supply module in this embodiment, in fig. 3, the power supply module 3 includes a power supply VCC, a bandgap reference voltage source U1, a first potentiometer RP1, a second resistor R2, a third resistor R3, a first operational amplifier a1, a fourth resistor R4, a first transistor Q1, a first diode D1, a first capacitor C92, a second transistor Q2, a unidirectional thyristor U2, and a voltage output Vo, where the power supply VCC is connected to a first pin of the bandgap reference voltage source U1, one end of the fourth resistor R4, a collector of the first transistor Q6329, and a collector of the second transistor Q2, a second pin of the bandgap reference voltage source U1 is connected to a fixed end of a first potentiometer RP1, a sliding end of the first potentiometer RP1 is connected to a non-inverting input end of the first operational amplifier a 3548, a inverting input end of the first operational amplifier A5 is connected to a first end of the second resistor R5857324 and a second end of the second resistor R5857323, the base of the first triode Q1 is connected with the other end of the fourth resistor R4, the emitter of the first triode Q1 is connected with the anode of the first diode D1, the cathode of the first diode D1 is respectively connected with one end of the first capacitor C1 and the control electrode of the unidirectional thyristor U2, the output end of the first operational amplifier A1 is respectively connected with the base of the second triode Q2 and the anode of the unidirectional thyristor U2, the emitter of the second triode Q2 is connected with one end of the voltage output end Vo, and the third pin of the band-gap reference voltage source U1 is respectively connected with the other fixed end of the first potentiometer RP1, the other end of the third resistor R3, the other end of the first capacitor C1, the cathode of the unidirectional thyristor U2 and the other end of the voltage output end Vo.
Compared with the power supply part of the traditional intelligent household appliance control system in the figure 1, the power supply module 3 has the advantages of fewer used components, simpler circuit structure and convenience in maintenance, and can reduce the hardware cost due to the fact that some components are saved. In addition, the first diode D1 is a current limiting diode for current limiting wave protection of the emitter current of the first transistor Q1. The current limiting protection principle is as follows: when the emitter current of the first triode Q1 is large, the first diode D1 can reduce the emitter current of the first triode Q1 to keep the first triode Q1 in a normal working state, and the elements in the circuit are not burnt out due to too large current, so that the safety and reliability of the circuit are high. It should be noted that in the present embodiment, the first diode D1 has a model number S-183T. Of course, in practical applications, the first diode D1 may also be another type of diode with the same function.
The working principle of the power supply module 3 is as follows: under normal conditions, the output end of the first operational amplifier a1 outputs high level, so that the second triode Q2 is turned on, the first triode V1 and the unidirectional thyristor U2 form an overcurrent cut-off type protection circuit, the fourth resistor R4 can be used for setting maximum current, when an overcurrent condition is met, the voltage passing through the fourth resistor R4 enables the base of the first triode Q1 to be powered on, the first triode Q1 is turned on, the control electrode of the unidirectional thyristor U2 is powered on and triggered, the unidirectional thyristor U2 is turned on, so that the base potential of the second triode Q2 is pulled low, the second triode Q2 is cut off, and the purpose of overcurrent protection is achieved. The first capacitor C1 is used to prevent frequent operation of the protection circuit when the capacitive load is applied. The first operational amplifier a1 is an overvoltage protection detection element, and when an overvoltage condition occurs, the voltage divided by the second resistor R2 and the third resistor R3 pulls up the potential of the inverting input terminal of the first operational amplifier a1, so that the first operational amplifier a1 outputs a low level, the base potential of the second triode Q2 is also lowered, and the voltage output terminal Vo is disconnected, thereby achieving the purpose of overvoltage protection.
In this embodiment, the first transistor Q1 is an NPN transistor, and the second transistor Q2 is an NPN transistor. Certainly, in practical applications, the first transistor Q1 and the second transistor Q2 may both adopt PNP transistors, but the circuit structure is also changed accordingly.
In this embodiment, the power supply module 3 further includes a fifth resistor R5, one end of the fifth resistor R5 is connected to the base of the second transistor Q2, and the other end of the fifth resistor R5 is connected to the anode of the unidirectional thyristor U2. The fifth resistor R5 is a current limiting resistor, and is used for current limiting protection of the base current of the second transistor Q2. The current limiting protection principle is as follows: when the base current of the second triode Q2 is large, the base current of the second triode Q2 can be reduced by the fifth resistor R5 to keep the second triode Q2 in a normal working state, so that the elements in the circuit are not burnt out due to too large current, and the safety and reliability of the circuit are further enhanced. It should be noted that, in this embodiment, the resistance of the fifth resistor R5 is 36k Ω. Of course, in practical applications, the resistance of the fifth resistor R5 may be increased or decreased according to specific situations.
In a word, in this embodiment, this power module 3 compares with the power supply part of traditional intelligent household electrical appliance control system, and its components and parts that use are less, and circuit structure is comparatively simple, and convenient maintenance can reduce the hardware cost owing to saved some components and parts like this. In addition, the power supply module 3 is provided with a current limiting diode, so that the safety and the reliability of the circuit are high.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An intelligent household appliance control system is characterized by comprising a single chip microcomputer, a clock module, a power supply module, a reset circuit, a watchdog circuit, an alarm module, a display screen, a sound card interface circuit, a serial port and a network port, wherein the single chip microcomputer is respectively connected with the clock module, the power supply module, the reset circuit, the watchdog circuit, the alarm module, the display screen, the sound card interface circuit, the serial port and the network port;
the power supply module comprises a power supply source, a band-gap reference voltage source, a first potentiometer, a second resistor, a third resistor, a first operational amplifier, a fourth resistor, a first triode, a first diode, a first capacitor, a second triode, a unidirectional thyristor and a voltage output end, wherein the power supply source is respectively connected with one end of a first pin of the band-gap reference voltage source, one end of the fourth resistor, a collector of the first triode and a collector of the second triode, a second pin of the band-gap reference voltage source is connected with one fixed end of the first potentiometer, a sliding end of the first potentiometer is connected with a non-inverting input end of the first operational amplifier, an inverting input end of the first operational amplifier is respectively connected with one end of the second resistor and one end of the third resistor, and a base of the first triode is connected with the other end of the fourth resistor, the emitting electrode of the first triode is connected with the anode of the first diode, the cathode of the first diode is respectively connected with one end of the first capacitor and the control electrode of the unidirectional thyristor, the output end of the first operational amplifier is respectively connected with the base electrode of the second triode and the anode of the unidirectional thyristor, the emitting electrode of the second triode is connected with one end of the voltage output end, and the third pin of the band-gap reference voltage source is respectively connected with the other fixed end of the first potentiometer, the other end of the third resistor, the other end of the first capacitor, the cathode of the unidirectional thyristor and the other end of the voltage output end.
2. The intelligent appliance control system of claim 1, wherein the first diode is of type S-183T.
3. The intelligent household appliance control system according to claim 2, wherein the power supply module further comprises a fifth resistor, one end of the fifth resistor is connected to the base of the second triode, and the other end of the fifth resistor is connected to the anode of the unidirectional thyristor.
4. The intelligent appliance control system of claim 3, wherein the resistance of the fifth resistor is 36k Ω.
5. The intelligent appliance control system of any one of claims 1 to 4, wherein the first transistor is an NPN transistor.
6. The intelligent appliance control system of any one of claims 1 to 4, wherein the second transistor is an NPN transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413810.0U CN211454316U (en) | 2020-03-26 | 2020-03-26 | Intelligent household appliance control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413810.0U CN211454316U (en) | 2020-03-26 | 2020-03-26 | Intelligent household appliance control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211454316U true CN211454316U (en) | 2020-09-08 |
Family
ID=72298308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020413810.0U Expired - Fee Related CN211454316U (en) | 2020-03-26 | 2020-03-26 | Intelligent household appliance control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211454316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117650494A (en) * | 2024-01-29 | 2024-03-05 | 深圳市蔚来芯科技有限公司 | Electrostatic protection circuit and electrostatic protection method for display screen chip |
-
2020
- 2020-03-26 CN CN202020413810.0U patent/CN211454316U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117650494A (en) * | 2024-01-29 | 2024-03-05 | 深圳市蔚来芯科技有限公司 | Electrostatic protection circuit and electrostatic protection method for display screen chip |
| CN117650494B (en) * | 2024-01-29 | 2024-05-14 | 深圳市蔚来芯科技有限公司 | Electrostatic protection circuit and electrostatic protection method for display screen chip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102332898B (en) | Switching circuit with zero standby power consumption | |
| CN211454316U (en) | Intelligent household appliance control system | |
| CN207398814U (en) | Undervoltage overvoltage protection circuit and power supply system | |
| CN212462838U (en) | Power supply switching circuit and intelligent door lock system | |
| CN213585190U (en) | Power control circuit with standby low power consumption | |
| CN204947900U (en) | Power management circuit of electronic lock | |
| CN209913795U (en) | Wake-up circuit and electronic equipment | |
| CN111756091A (en) | Power supply switching circuit and intelligent door lock | |
| CN215817607U (en) | Power supply circuit and remote control device | |
| CN111934666A (en) | Key circuit with system awakening function and specific function | |
| CN207265995U (en) | It is a kind of to use the key switch electromechanics road with ena-bung function linear voltage regulator | |
| CN209074092U (en) | Intelligent curtain control system | |
| CN213754721U (en) | MCU silence circuit that resets | |
| CN210724302U (en) | Low-power consumption power control circuit based on singlechip | |
| CN207937526U (en) | Power-fail detection circuit on charging pile | |
| CN207766525U (en) | Sound equipment with power supply protection function | |
| CN215268319U (en) | Intelligent gateway | |
| CN207995245U (en) | The start control circuit and television set of television set | |
| CN212518827U (en) | Intelligent household audio-video system | |
| CN218995923U (en) | One-key multifunctional control circuit | |
| CN212908973U (en) | Overcurrent protection circuit with voltage monitoring function | |
| CN214590549U (en) | Pump-up control protection circuit and control system | |
| CN211456687U (en) | Isolated network lightning protection device | |
| CN214310843U (en) | Dry-wet contact integrated input detection circuit | |
| CN219715994U (en) | Control circuit of temperature controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 |