CN216623061U - Heating temperature control circuit applied to master control CPU - Google Patents
Heating temperature control circuit applied to master control CPU Download PDFInfo
- Publication number
- CN216623061U CN216623061U CN202123394386.3U CN202123394386U CN216623061U CN 216623061 U CN216623061 U CN 216623061U CN 202123394386 U CN202123394386 U CN 202123394386U CN 216623061 U CN216623061 U CN 216623061U
- Authority
- CN
- China
- Prior art keywords
- module
- power
- power supply
- control module
- heating
- 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.)
- Active
Links
Images
Landscapes
- Control Of Resistance Heating (AREA)
Abstract
The utility model discloses a heating temperature control circuit applied to a main control CPU (central processing unit), which solves the problem that the conventional device for realizing heating and temperature control for the main control CPU cannot feed back to a terminal in time when power is off. The heating temperature control circuit comprises a control module, a temperature sensing module, a switch control module, a heating module, a power supply module, a super capacitor set, a voltage detection module and a wireless communication module, wherein the temperature sensing module, the switch control module, the power supply module, the super capacitor set, the voltage detection module and the wireless communication module are all connected with the control module; the temperature sensing module, the wireless communication module and the heating module are simultaneously connected with the power module and the super capacitor set, the voltage detection module is connected with the power module, and the switch control module is further connected with the heating module. Through reasonable design, the utility model not only has simple circuit structure, low power consumption and low cost, but also has the function of feeding back information to the terminal in time when power is off.
Description
Technical Field
The utility model relates to the technical field of CPUs (central processing units), in particular to a heating temperature control circuit applied to a main control CPU.
Background
At present, the main control CPU of products used in some fields (such as security) generally has the defect of poor low-temperature characteristics, and the main control CPU cannot be started in a low-temperature environment. Some products that need to be used in a high-temperature environment also need to be subjected to a high-temperature test on a main control CPU in the product in the high-temperature environment before leaving a factory, that is: the working performance change of the main control CPU is known in real time through the detection device in the process of heating the main control CPU to the set temperature, and then the working environment of the main control CPU is adjusted.
Therefore, a special heating temperature control device needs to be matched, and the temperature in the closed space where the main control CPU is located is kept in an electric heating mode, so that the space where the main control CPU is located at a low temperature is still in a normal temperature range, and the normal starting of the main control CPU is realized; or for implementing a heating test of a master CPU of some products. However, most of the existing devices for heating and controlling the temperature of the main control CPU are complex in circuit structure, and do not have a function of feeding back to the terminal when the power is off, so that related personnel cannot know the temperature of the working environment where the main control CPU is located in time, and unnecessary troubles are easily caused. Therefore, it is necessary to provide an improvement to this situation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a heating temperature control circuit applied to a main control CPU (central processing unit), which solves the problem that the conventional device for realizing heating and temperature control for the main control CPU cannot feed back to a terminal in time when power is off.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a heating temperature control circuit applied to a master control CPU comprises a control module, a temperature sensing module, a switch control module, a power supply module and a heating module, wherein the temperature sensing module, the switch control module and the power supply module are all connected with the control module; the temperature sensing module is connected with the power supply module; the heating module is connected with power module and on-off control module simultaneously, still includes:
the super capacitor bank is connected with the power supply module and the control module simultaneously and used as a standby power supply, and is in a charging state when the power supply module supplies power normally and in a discharging state when the power supply module is powered off to supply power to the control module;
the voltage detection module is simultaneously connected with the control module and the power supply module and is used for feeding back the power supply voltage to the control module in real time;
the wireless communication module is simultaneously connected with the control module, the power supply module and the super capacitor bank, when the super capacitor bank supplies power to the control module, the voltage detection module has no feedback, the control module judges that the super capacitor bank is in a power-off state at present, and feeds power-off information and temperature information in a space where the main control CPU is located back to the terminal through the wireless communication module.
Preferably, the control module is AT89C 51.
Preferably, the temperature sensing module is a thermistor.
Preferably, the voltage detection module is a CN61C series voltage detection module.
Further, a resistor R2 and an isolation diode D1 are sequentially connected between the super capacitor bank and the power module in series; an isolation diode D2 is connected between the control module and the power supply module in series; and an isolation diode D3 is connected in series between the control module and the super capacitor bank.
Preferably, the switch control module is an NPN type triode, a base of which is connected to the control module through a resistor R1, a collector of which is connected to the heating module, and an emitter of which is grounded.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the utility model, by arranging the super capacitor bank, the voltage detection module and the wireless communication module, when the power supply module is powered off, the control module is continuously supplied with power by utilizing the energy storage and discharge characteristics of the super capacitor bank, so that the control module can keep normal work within a certain time, and because the power supply module is powered off, the voltage detection module has no working voltage, so that the real-time voltage is not fed back to the control module any more, the control module can judge that the control module is currently in a power-off state, and then the power-off information and the temperature information in the space where the current main control CPU is located are fed back to the terminal through the wireless communication module before the power supply module is powered off, so that related personnel can know the situation in time and take related measures, and unnecessary troubles are avoided.
(2) The circuit has the advantages of few used components, reasonable component type selection, simple circuit structure, low power consumption, low cost and practical function, thereby being suitable for popularization and application.
Drawings
Fig. 1 is a schematic block diagram of a circuit according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a part of a circuit structure according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a circuit structure of a portion of an embodiment of the present invention.
Detailed Description
The utility model provides a heating temperature control circuit which is applied to the heating and temperature control aspects of a main control CPU (central processing unit), ensures that the space where the main control CPU is positioned at a low temperature is still in a normal temperature range, and realizes the normal starting of the main control CPU; or to implement a heating test of some product master control CPUs. The utility model is further illustrated by the following description and examples, including but not limited to the following examples, taken in conjunction with the accompanying drawings.
Examples
As shown in fig. 1, the circuit of this embodiment includes a control module, a temperature sensing module, a switch control module, a heating module, a power module, a super capacitor bank, a voltage detection module, and a wireless communication module, where the temperature sensing module, the switch control module, the power module, the super capacitor bank, the voltage detection module, and the wireless communication module are all connected to the control module; the temperature sensing module, the wireless communication module and the heating module are simultaneously connected with the power supply module and the super capacitor set, the voltage detection module is connected with the power supply module, and the switch control module is further connected with the heating module.
Because the function requirement is simple, only the heating and temperature control requirements are met, and therefore, in order to reduce the power consumption and the cost as much as possible, the control module in the embodiment adopts an AT89C51 single-chip microcomputer minimum system (generally comprising a single-chip microcomputer, a clock circuit and a reset circuit), the temperature sensing module adopts a thermistor (or a low-power-consumption and high-precision temperature sensor can be adopted according to the actual situation), the switch control module adopts an NPN type triode (Q1), the base electrode of the NPN type triode is connected with the control module through a resistor R1, the collector electrode of the NPN type triode is connected with the heating module, the emitter electrode of the NPN type triode is grounded, and part of the circuit structure is shown in fig. 2.
The super capacitor bank in this embodiment is used as a standby power supply, and is in a charging state when the power module supplies power normally, and is in a discharging state when the power module is powered off, so as to supply power to the control module. The related circuit structure of the super capacitor bank adopted in the embodiment is shown in fig. 3, and includes components such as resistors R3-R8, capacitors C1, C2, triodes Q2, Q3, and the like. Compared with a common capacitor, the super capacitor has the advantages of high charging speed (more than 95% of rated capacity can be achieved after charging for 10 minutes), long cycle life (the number of times of deep charge-discharge cycle use can be up to 1 ten thousand), larger capacity and higher energy conversion efficiency, and is environment-friendly and green although the energy storage is not as high as that of a lithium battery. The heating temperature control device designed in this embodiment only needs to continuously provide working voltage for the control module within a certain time after power failure, so that the control module can feed back information to the terminal. In addition, in the embodiment, a resistor R2 and an isolation diode D1 are sequentially connected in series between the super capacitor bank and the power module; an isolation diode D2 is connected in series between the control module and the power supply module; an isolation diode D3 is connected in series between the control module and the super capacitor bank.
The voltage detection module in this embodiment is used for feeding back power supply voltage to the control module in real time, and what it adopted is CN61C series voltage detection module, and the low power consumption, detection accuracy are high, and its VCC pin inserts the power module, and the voltage that the power module output both is the operating voltage of internal circuit, also is the voltage that is detected, and when the power module does not have voltage output, voltage detection module is out of work, and no information feedback is to control module, and control module can judge and be in the outage state at present.
The wireless communication module in this embodiment is used for not only normal communication between the heating temperature control device and the terminal, but also feedback power-off information and temperature information in the space where the current main control CPU is located to the terminal.
The main working principle of this embodiment is the same as that of the existing heating temperature control device, namely: the temperature sensing module is used for sampling the ambient temperature in the space where the main control CPU is located currently, the ambient temperature is fed back to the control module for comparison, and if the sampled temperature value is lower than the lower limit of the temperature threshold preset by the control module, the control module conducts the switch control module (when the switch control module adopts a triode, the switch control module conducts the switch control module in a high-level output mode), so that the heating module heats and warms up. When the sampled temperature value reaches the upper limit of the preset temperature threshold value, the control module turns off the control switch control module (outputs low level) to stop the heating module. The temperature control purpose can be realized by repeating the steps.
When the power failure condition occurs, the super capacitor bank is quickly switched to continue to supply power, the voltage detection module does not have voltage feedback, the control module can judge that the super capacitor bank is in the power failure state at present, and then the power failure information and the temperature information in the space where the main control CPU is located are fed back to the terminal through the wireless communication module.
Through reasonable design, the utility model not only has simple circuit structure, low power consumption and low cost, but also has the function of feeding back information to the terminal in time when power is off.
In summary, the present invention can be preferably implemented according to the above embodiments.
Claims (6)
1. A heating temperature control circuit applied to a master control CPU comprises a control module, a temperature sensing module, a switch control module, a power supply module and a heating module, wherein the temperature sensing module, the switch control module and the power supply module are all connected with the control module; the temperature sensing module is connected with the power supply module; the heating module is connected with power module and on-off control module simultaneously, its characterized in that still includes:
the super capacitor bank is connected with the power supply module and the control module simultaneously and used as a standby power supply, and is in a charging state when the power supply module supplies power normally and in a discharging state when the power supply module is powered off to supply power to the control module;
the voltage detection module is simultaneously connected with the control module and the power supply module and is used for feeding back the power supply voltage to the control module in real time;
the wireless communication module is simultaneously connected with the control module, the power supply module and the super capacitor bank, when the super capacitor bank supplies power to the control module, the voltage detection module has no feedback, the control module judges that the super capacitor bank is in a power-off state at present, and feeds power-off information and temperature information in a space where the main control CPU is located back to the terminal through the wireless communication module.
2. The heating temperature control circuit applied to the main control CPU of claim 1, wherein the control module is AT89C 51.
3. The heating temperature control circuit applied to the main control CPU according to claim 2, wherein the temperature sensing module is a thermistor.
4. The heating temperature control circuit applied to the main control CPU according to claim 3, wherein the voltage detection module is a CN61C series voltage detection module.
5. The heating temperature control circuit applied to the main control CPU according to any one of claims 1 to 4, wherein a resistor R2 and an isolating diode D1 are connected in series between the super capacitor bank and the power module in sequence; an isolation diode D2 is connected between the control module and the power supply module in series; and an isolation diode D3 is connected in series between the control module and the super capacitor bank.
6. The heating temperature control circuit applied to the main control CPU of claim 5, wherein the switch control module is an NPN type triode, a base of the NPN type triode is connected with the control module through a resistor R1, a collector of the NPN type triode is connected with the heating module, and an emitter of the NPN type triode is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123394386.3U CN216623061U (en) | 2021-12-30 | 2021-12-30 | Heating temperature control circuit applied to master control CPU |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123394386.3U CN216623061U (en) | 2021-12-30 | 2021-12-30 | Heating temperature control circuit applied to master control CPU |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216623061U true CN216623061U (en) | 2022-05-27 |
Family
ID=81684831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123394386.3U Active CN216623061U (en) | 2021-12-30 | 2021-12-30 | Heating temperature control circuit applied to master control CPU |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216623061U (en) |
-
2021
- 2021-12-30 CN CN202123394386.3U patent/CN216623061U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209544544U (en) | A kind of regular active nuclei of battery group holds and repair system | |
| CN103036284B (en) | A kind of aviation onboard recorder independent current source | |
| CN101188361A (en) | An energy management system for voltage increase under 0.3V low-voltage | |
| TWI332304B (en) | ||
| CN103033693B (en) | A kind of mobile terminal charging measurement system and method | |
| CN103309373B (en) | Low-temperature single chip microcomputer starting and working method and low-temperature running single chip microcomputer system for achieving method | |
| CN108879892B (en) | Automatic switching power supply system for double battery packs | |
| CN216623061U (en) | Heating temperature control circuit applied to master control CPU | |
| CN106740211A (en) | The balancing energy system and method for electrokinetic cell | |
| CN201726170U (en) | Power supply with wakeup function | |
| CN103138316A (en) | Electric car charger | |
| CN101949982A (en) | Super capacitor detection and control circuit system | |
| CN111525542B (en) | Power supply method for safely storing data of intelligent electric energy meter | |
| CN207283265U (en) | It is a kind of based on solar powered and timing transmission power transmission line monitoring system | |
| CN206894301U (en) | A kind of double accessory power supplys and the energy-storage system based on double accessory power supplys | |
| CN107947264A (en) | A kind of direct current cabinet storage battery group management and maintenance system | |
| CN111564834B (en) | Power supply method of distribution terminal tester and storage battery activation method | |
| CN203193342U (en) | DSP-based solar charge comprehensive protection controller | |
| CN204439171U (en) | The liquid level reminding device of monitoring transformer oil liquid level | |
| CN211981564U (en) | Power-off data protection device of intelligent electric energy meter | |
| CN112491115A (en) | Power supply management circuit for standby rechargeable battery | |
| CN220625503U (en) | Magnetic type wireless vibration temperature detection device powered by solar energy in backup mode | |
| CN214314665U (en) | Charging stop detection system | |
| CN220022378U (en) | Control circuit with low-power consumption awakening function | |
| CN213072130U (en) | Photovoltaic power generation electric energy saturation automatic power-off system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |