CN209844856U - Power frequency inversion charging all-in-one machine with circuit protection - Google Patents
Power frequency inversion charging all-in-one machine with circuit protection Download PDFInfo
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- CN209844856U CN209844856U CN201920499587.3U CN201920499587U CN209844856U CN 209844856 U CN209844856 U CN 209844856U CN 201920499587 U CN201920499587 U CN 201920499587U CN 209844856 U CN209844856 U CN 209844856U
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Abstract
The utility model discloses a power frequency contravariant all-in-one that charges with circuit protection, including DC-AC contravariant unit full wave rectification unit, AC-AC power frequency boost unit power frequency voltage reduction unit, LC filtering unit, peripheral auxiliary power supply unit, the data sampling unit, power tube drive unit, fan control unit, the circuit protection unit, MCU microprocessor unit, LCD display element, mode indicating unit and wireless communication unit, the circuit protection unit includes input voltage overvoltage protection circuit, input voltage overvoltage protection circuit includes one hundred seventy nineteenth resistance, one hundred eighty three resistance, the forty-four diode, the fourth stabilivolt, one hundred ninety five resistance, forty-five diode and one hundred ninety four resistance. The utility model discloses realize more succinct walking the line mode, external equipment passes through the work of wireless communication control contravariant all-in-one that charges to detect contravariant all-in-one operating condition that charges.
Description
Technical Field
The utility model relates to a wireless communication and contravariant field of charging, in particular to power frequency contravariant all-in-one that charges with circuit protection.
Background
The power frequency inverter is a DC/AC converter, which adopts high frequency pulse width modulation technology and microcomputer control technology to convert the DC power supply of the battery pack into AC power supply with stable output voltage and frequency. Industrial frequency inverters have many applications, such as those used in the aviation industry to provide a frequency conversion to 400Hz, and generally have an input voltage that is varied according to the needs of the application. In traditional power frequency contravariant all-in-one system, power frequency contravariant all-in-one passes through RS232 or RS485 and external equipment and communicates, must pass through the wire between power frequency contravariant all-in-one and the external equipment and be connected, can lead to the system to walk the line more loaded down with trivial details like this, and breaks down easily.
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 one kind and realize more succinct walking the line mode, external equipment passes through the work of wireless communication control contravariant all-in-one that charges to detect the power frequency contravariant all-in-one that has circuit protection that the contravariant all-in-one operating condition that charges.
The utility model provides a technical scheme that its technical problem adopted is: a power frequency inversion charging integrated machine with circuit protection is constructed, and comprises a DC-AC inversion unit/full wave rectification unit, an AC-AC power frequency boosting unit/power frequency voltage reducing unit, an LC filtering unit, a peripheral auxiliary power supply unit, a data sampling unit, a power tube driving unit, a fan control unit, a circuit protection unit, an MCU microprocessor unit, an LCD display unit, a working mode indicating unit and a wireless communication unit, wherein the DC-AC inversion unit/full wave rectification unit is respectively connected with the AC-AC power frequency boosting unit/power frequency voltage reducing unit, the LC filtering unit, the peripheral auxiliary power supply unit, the power tube driving unit and the MCU microprocessor unit, the data sampling unit, the fan control unit, the circuit protection unit, the LCD display unit, the working mode indicating unit and the wireless communication unit are all connected with the MCU;
the circuit protection unit comprises an input voltage overvoltage protection circuit, the input voltage overvoltage protection circuit comprises a one-hundred-seventy-nine resistor, a one-hundred-eighty-three resistor, a forty-fourth diode, a fourth voltage regulator, a one-hundred-ninety-five resistor, a forty-fifth diode and a one-hundred-ninety-four resistor, an inverting input end of the third integrated operational amplifier is respectively connected with one end of the one-hundred-seventy-nine resistor, one end of the one-hundred-eighty-three resistor, an anode of the forty-fourth diode and a cathode of the fourth voltage regulator, a non-inverting input end of the third integrated operational amplifier is respectively connected with an anode of the fourth voltage regulator and one end of the one-hundred-ninety-five resistor, the other end of the one-hundred-ninety-fifteen resistor is grounded, and an output end of the third integrated operational amplifier is respectively connected with a cathode of the forty-fourth diode and an anode of the forty-, and the cathode of the forty-fifth diode is respectively connected with the other end of the one-hundred eighty-three resistor and one end of the one-hundred ninety-four resistor, and the other end of the one-hundred ninety-four resistor is connected with the MCU.
In the power frequency inversion charging all-in-one machine with circuit protection, the input voltage overvoltage protection circuit further comprises a forty-sixth diode, an anode of the forty-sixth diode respectively with the other end of the one hundred ninety-four resistors and the MCU.
In the power frequency inversion charging all-in-one machine with circuit protection, the input voltage overvoltage protection circuit further includes a nineteenth three resistor, one end of the nineteenth thirteen resistor is connected with the cathode of the forty-fifth diode, the other end of the eighty-eighth three resistor and one end of the ninety-fourth resistor, and the other end of the ninety-ninth three resistor is grounded.
In the power frequency inversion charging all-in-one machine with circuit protection, the circuit protection unit further comprises an output overload protection circuit, the output overload protection circuit comprises a forty-second capacitor, a hundred-zero eight resistor, a hundred-twenty-seven resistor, a hundred-twenty-eight resistor, a tenth integrated operational amplifier, a hundred-twenty-nine resistor and a forty-third capacitor, the inverting input end of the tenth integrated operational amplifier is respectively connected with one end of the forty-second capacitor and one end of the hundred-zero eight resistor, the non-inverting input end of the tenth integrated operational amplifier is respectively connected with one end of the hundred-twenty-seven resistor and one end of the hundred-twenty-eight resistor, the other end of the forty-second capacitor and the other end of the hundred-twenty-eight resistor are both grounded, the other end of the hundred-twenty-seven resistor is connected with a +5V power supply, the output end of the tenth integrated operational amplifier is respectively connected with one end of a first hundred twenty nine resistor and one end of a fourth forty-third capacitor, the other end of the first hundred twenty nine resistor is connected with the +5V power supply, and the other end of the fourth forty-third capacitor is grounded.
In the power frequency inversion charging all-in-one machine with circuit protection of the present invention, the fan control unit includes an interface, a sixth capacitor, a thirteenth resistor, a thirteenth diode, an eleventh resistor, a fifteenth resistor, a tenth MOS transistor and a fifteenth capacitor, a first pin of the interface is connected to the +12V power supply and one end of the sixth capacitor, respectively, the other end of the sixth capacitor is grounded, a second pin of the interface is connected to the cathode of the thirteenth diode through the thirteenth resistor, an anode of the thirteenth diode is connected to one end of the eleventh resistor, one end of the fifteenth capacitor and the MCU microprocessor unit, respectively, a third pin of the interface is connected to the drain of the tenth MOS transistor, and a gate of the tenth MOS transistor is connected to one end of the fifteenth resistor and one end of the seventeenth resistor, respectively, the other end of the fifteenth resistor is connected with the MCU, and the other end of the seventeenth resistor, the source electrode of the tenth MOS tube and the other end of the fifteenth capacitor are all grounded.
Implement the utility model discloses a power frequency contravariant all-in-one that charges with circuit protection has following beneficial effect: the power frequency inversion charging all-in-one machine with the circuit protection function has a wireless communication function through the wireless communication unit, wireless communication with external equipment and a mobile phone can be realized, communication between the power frequency inversion charging all-in-one machine with the circuit protection and the external equipment is optimized, a simpler wiring mode is realized, the external equipment controls the operation of the inversion charging all-in-one machine through the wireless communication, and the working state of the inversion charging all-in-one machine is detected.
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 structural diagram of an embodiment of the power frequency inversion charging integrated machine with circuit protection of the present invention;
FIG. 2 is a schematic circuit diagram of an input voltage overvoltage protection circuit in the embodiment;
FIG. 3 is a schematic circuit diagram of an output overload protection circuit in the embodiment;
fig. 4 is a schematic circuit diagram of the fan control unit 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 power frequency contravariant all-in-one that charges with circuit protection embodiment, this power frequency contravariant all-in-one that charges with circuit protection's structural schematic is shown in FIG. 1. In fig. 1, the power frequency inversion and charging all-in-one machine with circuit protection comprises a DC-AC inversion unit 1/full wave rectification unit 1', an AC-AC power frequency boosting unit 2/power frequency voltage reducing unit 2', an LC filtering unit 3, a peripheral auxiliary power supply unit 4, a data sampling unit 5, a power tube driving unit 6, a fan control unit 7, a circuit protection unit 8, an MCU microprocessor unit 9, an LCD display unit 10, a working mode indication unit 11 and a wireless communication unit 12, wherein the DC-AC inversion unit 1/full wave rectification unit 1 'is respectively connected with the AC-AC power frequency boosting unit 2/power frequency voltage reducing unit 2', the LC filtering unit 3, the peripheral auxiliary power supply unit 4, the power tube driving unit 6 and the MCU microprocessor unit 9, the data sampling unit 5, the fan control unit 7, a, The circuit protection unit 8, the LCD display unit 10, the working mode indication unit 11 and the wireless communication unit 12 are all connected with the MCU 9.
In this embodiment, the DC-AC inverter unit 1 converts the input DC level into pulse energy with a fundamental wave of 50/60Hz, and the pulse energy is converted into 50/60Hz alternating current for the alternating current load through the AC-AC power frequency boosting unit 2 and the LC filtering unit 3. The peripheral auxiliary power supply unit 4 supplies power to other working units. The data sampling unit 5 collects the working state of the power frequency inversion charging all-in-one machine with circuit protection, and comprises the working mode of the power frequency inversion charging all-in-one machine with circuit protection, inversion output voltage, inversion output current, direct current input voltage, radiator temperature, fan working state, storage battery charging current and the like, and the data sampling unit 5 sends the collected data to the MCU 9 after amplification and filtering processing.
The power tube driving unit 6 drives a full-bridge power MOS tube to realize full-bridge inversion, and converts direct current level into pulse energy; the fan control unit 7 controls the operation of the fan, detects the operation condition of the fan in real time, and sends the abnormal condition to the MCU 9 when the fan is abnormal; the circuit protection unit 8 has an input overvoltage protection function and an output overcurrent protection function, and when the input voltage or the output current exceeds a set value, the circuit protection unit 8 immediately closes the all-in-one machine system to prevent the circuit of the all-in-one machine system from being damaged.
The MCU 9 processes the signals of the data sampling unit 5, the fan control unit 7 and the wireless communication unit 12 and sends out corresponding control signals, and the control signals control the power MOS tube through the power tube driving unit 6 to realize energy transmission.
The LCD display unit 10 displays the current operation data of the all-in-one machine system, including data such as inversion output voltage, output power, input voltage and fault information; the working mode indicating unit 11 indicates the current working state through an LED indicating lamp; the wireless communication unit 12 communicates with the external device, sends the current state information of the all-in-one machine, receives the command sent by the external device, and transmits the command to the MCU 9, and the MCU 9 performs related processing according to related algorithms.
The full-wave rectification unit 1' rectifies 50/60Hz alternating current and then charges a storage battery; the power frequency voltage reduction unit 2 'reduces the voltage of alternating current commercial power, provides energy input for the full-wave rectification unit 1', and the full-wave rectification unit 1 'and the power frequency voltage reduction unit 2' jointly realize a storage battery charging power transmission circuit.
The specific working process of the power frequency inversion charging all-in-one machine with the circuit protection is as follows: when the input side is connected with a direct current level, the peripheral auxiliary power supply unit 4 starts to work to provide power for each unit of the power frequency inversion charging all-in-one machine with circuit protection, the data sampling unit 5 amplifies and filters collected information and sends the information to the MCU microprocessor unit 9, the wireless communication unit 12 communicates with external equipment and transmits an external equipment command to the wireless communication unit 12, the MCU microprocessor unit 9 performs operation processing on the sampled information according to a related algorithm, if all external environments are normal, a PWM control signal is sent out and controls a full-bridge MOS tube through the power tube driving unit 6, and inversion chopping or charging management is performed according to the current mode.
If the current mode is an inversion mode, the PWM control signal completes full-bridge chopping of the DC-AC inversion unit 1 through the power tube driving unit 6, and high-frequency pulse energy after chopping is output in an alternating current level mode through the AC-AC power frequency boosting unit 2 and the LC filtering unit 3; if the current mode is a charging mode, the PWM control signal completes the rectification function of the full-wave rectification unit 1' through the power tube driving unit 6, the rectified direct current level charges a storage battery, and the power frequency voltage reduction unit 2' provides energy input for the full-wave rectification unit 1 '; meanwhile, the MCU 9 sends out a control signal according to the current running condition, controls the working mode indicating unit 11 to light up a related LED indicating lamp and indicates the current working state.
The MCU 9 communicates with the wireless communication unit 12 in real time, transmits the current working state to the wireless communication unit 12, the wireless communication unit 12 communicates with external equipment in a wireless mode, sends the current state information of the all-in-one machine to the external equipment, the external equipment transmits the operation parameters of the all-in-one machine to the LCD display unit 10, and the LCD display unit 10 displays the operation parameters of the all-in-one machine. When the MCU 9 detects that the information of the data sampling unit 5 exceeds the normal value range, the judgment is made according to the related algorithm, a control signal is sent out, PWM is closed, and inversion or charging is stopped.
During the normal operation process of the power frequency inversion charging all-in-one machine with circuit protection, when the temperature reaches a certain value or the output power reaches a certain value, the MCU 9 sends a control signal to control the fan control unit 7 to start working, and the fan is started to radiate heat of the all-in-one machine.
This power frequency contravariant all-in-one that charges with circuit protection and external equipment adopt wireless communication, have simplified circuit layout. This power frequency contravariant all-in-one that charges with circuit protection can carry out the communication with many external equipment, has improved system flexibility, makes things convenient for system maintenance. This power frequency contravariant all-in-one system that charges with circuit protection is more succinct, has improved the stability of system.
In this embodiment, the circuit protection unit 8 includes an input voltage overvoltage protection circuit, and a schematic circuit diagram of the input voltage overvoltage protection circuit is shown in fig. 2. In fig. 2, the input voltage overvoltage protection circuit comprises a one hundred seventy nine resistor R179, a one hundred eighty three resistor R183, a forty four diode D44, a fourth voltage regulator ZD4, a one hundred ninety five resistor R195, a forty five diode D45 and a one hundred ninety four resistor R194, an inverting input terminal of a third integrated operational amplifier U3 is connected with one end of the one hundred seventy nine resistor R179, one end of the one hundred eighty three resistor R183, an anode of the forty four diode D44 and a cathode of the fourth voltage regulator ZD4, respectively, a non-inverting input terminal of the third integrated operational amplifier U3 is connected with an anode of the fourth voltage regulator 4 and one end of the one hundred ninety five resistor R195, the other end of the one hundred ninety five resistor R195 is grounded, an output terminal of the third integrated operational amplifier U3 is connected with a cathode of the fourth diode D44 and an anode of the forty five diode D45, respectively, and a cathode of the forty five diode D45 is connected with an cathode of the eighty three hundred nineteen resistor R183 and a cathode of the other end of the one hundred nineteen resistor R183 One end of the resistor R194 is connected, and the other end of the one hundred ninety-four resistor R194 is connected with the MCU 9. The input voltage overvoltage protection circuit is simple in circuit structure and capable of reducing hardware cost.
In this embodiment, the input voltage overvoltage protection circuit further includes a forty-sixth diode D46, and anodes of the forty-sixth diode D46 are respectively connected to the other end of the one hundred ninety-four resistor R194 and the MCU microprocessor unit 9.
In this embodiment, the input voltage overvoltage protection circuit further includes a one hundred ninety-three resistor R193, one end of the one hundred ninety-three resistor R193 is connected to the cathode of the forty-five diode D45, the other end of the one hundred eighty-three resistor R183 and one end of the one hundred ninety-four resistor R194, respectively, and the other end of the one hundred ninety-three resistor R193 is connected to the ground GND-S.
In this embodiment, the circuit protection unit 8 further includes an output overload protection circuit, and a schematic circuit diagram of the output overload protection circuit is shown in fig. 3. In fig. 3, the output overload protection circuit includes a forty-second capacitor C42, a one-hundred-eighth resistor R108, a one-hundred-twenty-seventh resistor R127, a one-hundred-twenty-eighth resistor R128, a tenth integrated operational amplifier U09: B, a one-hundred-twenty-ninth resistor R129 and a forty-third capacitor C43, an inverting input terminal of the tenth integrated operational amplifier U09: B is connected to one end of the forty-second capacitor C42 and one end of the first-hundred-eighth resistor R108, respectively, a non-inverting input terminal of the tenth integrated operational amplifier U09: B is connected to one end of the one-hundred-twenty-seventh resistor R127 and one end of the one-hundred-twenty-eighth resistor R128, the other end of the forty-second capacitor C42 and the other end of the one-hundred-twenty-eighth resistor R128 are both grounded GND-S, the other end of the one-hundred-twenty-seventh resistor R127 is connected to a +5V power supply, an output terminal of the tenth integrated operational amplifier U09: B is connected to one end of the one-hundred-twenty-ninth, the other end of the one hundred twenty nine resistor R129 is connected with a +5V power supply, and the other end of the forty three capacitor C43 is grounded GND-S. The output overload protection circuit is simple in structure and can reduce hardware cost.
Fig. 4 is a schematic circuit diagram of a fan control unit in this embodiment, in fig. 4, the fan control unit 7 includes an interface CN02, a sixth capacitor C6, a thirteenth resistor R13, a thirteenth diode D13, an eleventh resistor R11, a fifteenth resistor R15, a tenth MOS transistor Q10 and a fifteenth capacitor C15, a first pin of the interface CN02 is connected to the +12V power supply and one end of the sixth capacitor C6, respectively, the other end of the sixth capacitor C6 is grounded, a second pin of the interface CN02 is connected to a cathode of the thirteenth diode D13 through the thirteenth resistor R13, an anode of the thirteenth diode D13 is connected to one end of the eleventh resistor R11, one end of the fifteenth capacitor C15 and the MCU microprocessor unit 9, a third pin of the interface CN02 is connected to a drain of the tenth MOS transistor Q10, a gate of the tenth MOS transistor Q10 is connected to one end of the fifteenth resistor R15 and one end of the fifteenth resistor R17, and the fifteenth resistor 15 is connected to the MCU 15, the other end of the seventeenth resistor R17, the source of the tenth MOS transistor Q10, and the other end of the fifteenth capacitor C15 are all grounded. The fan control unit 7 has a simple structure and can reduce hardware cost.
In this embodiment, the DC-AC inverter unit 1/full-wave rectifier unit 1', the AC-AC power-frequency boost unit 2/power-frequency buck unit 2', the LC filter unit 3, the peripheral auxiliary power supply unit 4, the data sampling unit 5, the power tube driving unit 6, the MCU microprocessor unit 9, the LCD display unit 10, the operating mode indication unit 11, and the wireless communication unit 12 all adopt circuits having any structure that can implement their functions in the prior art, and will not be described here.
In a word, in this embodiment, this power frequency contravariant all-in-one that charges with circuit protection has the wireless communication function, can realize carrying out wireless communication between with external equipment and the cell-phone, can supply power for alternating current load safe and reliable, when the storage battery electric quantity is lacked, charges the storage battery. The power frequency inversion charging all-in-one machine with circuit protection and the external device are optimized in communication, a more concise wiring mode is achieved, the external device controls the inversion charging all-in-one machine to work through wireless communication, and the working state of the inversion charging all-in-one machine is detected.
The utility model discloses a wireless communication technology for this power frequency contravariant all-in-one that charges with circuit protection can communicate with many external equipment. The power frequency inversion charging all-in-one machine with the circuit protection function sends current running state information through wireless communication, the external equipment detects the working condition of the all-in-one machine in real time, and the all-in-one machine is controlled to provide alternating current electric energy for a load according to the running condition of the all-in-one machine at present. The power frequency inversion charging all-in-one machine with circuit protection and external equipment are in a master-slave relationship, and the master-slave relationship can be mutually converted; when the power frequency inversion charging all-in-one machine with the circuit protection sends data, the power frequency inversion charging all-in-one machine with the circuit protection is a host, and when the external equipment sends a control signal to control the power frequency inversion charging all-in-one machine with the circuit protection to work, the power frequency inversion charging all-in-one machine with the circuit protection is a slave. The utility model discloses the wireless communication technique and the control algorithm that adopt can fill the blank of present domestic market contravariant all-in-one technique that charges.
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 (5)
1. A power frequency inversion charging all-in-one machine with circuit protection is characterized by comprising a DC-AC inversion unit/full-wave rectification unit, an AC-AC power frequency boosting unit/power frequency voltage reducing unit, an LC filtering unit, a peripheral auxiliary power supply unit, a data sampling unit, a power tube driving unit, a fan control unit, a circuit protection unit, an MCU microprocessor unit, an LCD display unit, a working mode indicating unit and a wireless communication unit, wherein the DC-AC inversion unit/full-wave rectification unit is respectively connected with the AC-AC power frequency boosting unit/power frequency voltage reducing unit, the LC filtering unit, the peripheral auxiliary power supply unit, the power tube driving unit and the MCU microprocessor unit, the data sampling unit, the fan control unit, the circuit protection unit, the LCD display unit, the working mode indicating unit and the wireless communication unit are all connected with the MCU;
the circuit protection unit comprises an input voltage overvoltage protection circuit, the input voltage overvoltage protection circuit comprises a one-hundred-seventy-nine resistor, a one-hundred-eighty-three resistor, a forty-fourth diode, a fourth voltage regulator, a one-hundred-ninety-five resistor, a forty-fifth diode and a one-hundred-ninety-four resistor, the inverting input end of a third integrated operational amplifier is respectively connected with one end of the one-hundred-seventy-nine resistor, one end of the one-hundred-eighty-three resistor, the anode of the forty-fourth diode and the cathode of the fourth voltage regulator, the non-inverting input end of the third integrated operational amplifier is respectively connected with the anode of the fourth voltage regulator and one end of the one-hundred-ninety-five resistor, the other end of the one-hundred-ninety-fifteen resistor is grounded, and the output end of the third integrated operational amplifier is respectively connected with the cathode of the forty-fourth diode and the anode of the forty, and the cathode of the forty-fifth diode is respectively connected with the other end of the one-hundred eighty-three resistor and one end of the one-hundred ninety-four resistor, and the other end of the one-hundred ninety-four resistor is connected with the MCU.
2. The power frequency inverter-charging all-in-one machine with circuit protection as claimed in claim 1, wherein the input voltage overvoltage protection circuit further comprises a forty-sixth diode, and an anode of the forty-sixth diode is respectively connected with the other end of the one hundred ninety-four resistor and the MCU.
3. The power frequency inversion charging all-in-one machine with circuit protection as claimed in claim 2, wherein the input voltage overvoltage protection circuit further comprises a one hundred ninety three resistor, one end of the one hundred ninety three resistor is respectively connected with the cathode of the forty-fifth diode, the other end of the one hundred eighty three resistor and one end of the one hundred ninety four resistor, and the other end of the one hundred ninety three resistor is grounded.
4. The power frequency inversion and charging all-in-one machine with circuit protection as claimed in claim 3, wherein the circuit protection unit further comprises an output overload protection circuit, the output overload protection circuit comprises a forty-second capacitor, a one-hundred-eight resistor, a one-hundred twenty-seven resistor, a one-hundred twenty-eight resistor, a tenth integrated operational amplifier, a one-hundred twenty-nine resistor and a forty-third capacitor, an inverting input terminal of the tenth integrated operational amplifier is respectively connected with one end of the forty-second capacitor and one end of the one-hundred-eight resistor, a non-inverting input terminal of the tenth integrated operational amplifier is respectively connected with one end of the one-hundred twenty-seven resistor and one end of the one-hundred-twenty-eight resistor, the other end of the forty-second capacitor and the other end of the one-hundred twenty-eighteen resistor are both grounded, and the other end of the one-hundred-twenty-seven resistor is connected with a +5V power, the output end of the tenth integrated operational amplifier is respectively connected with one end of a first hundred twenty nine resistor and one end of a fourth forty-third capacitor, the other end of the first hundred twenty nine resistor is connected with the +5V power supply, and the other end of the fourth forty-third capacitor is grounded.
5. The power frequency inversion charging all-in-one machine with circuit protection as claimed in claim 4, wherein the fan control unit includes an interface, a sixth capacitor, a thirteenth resistor, a thirteenth diode, an eleventh resistor, a fifteenth resistor, a tenth MOS transistor and a fifteenth capacitor, a first pin of the interface is connected to the +12V power supply and one end of the sixth capacitor, respectively, the other end of the sixth capacitor is grounded, a second pin of the interface is connected to a cathode of the thirteenth diode through the thirteenth resistor, an anode of the thirteenth diode is connected to one end of the eleventh resistor, one end of the fifteenth capacitor and the MCU microprocessor unit, a third pin of the interface is connected to a drain of the tenth MOS transistor, and a gate of the tenth MOS transistor is connected to one end of the fifteenth resistor and one end of the seventeenth resistor, respectively, the other end of the fifteenth resistor is connected with the MCU, and the other end of the seventeenth resistor, the source electrode of the tenth MOS tube and the other end of the fifteenth capacitor are all grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499587.3U CN209844856U (en) | 2019-04-13 | 2019-04-13 | Power frequency inversion charging all-in-one machine with circuit protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499587.3U CN209844856U (en) | 2019-04-13 | 2019-04-13 | Power frequency inversion charging all-in-one machine with circuit protection |
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| CN209844856U true CN209844856U (en) | 2019-12-24 |
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| CN201920499587.3U Active CN209844856U (en) | 2019-04-13 | 2019-04-13 | Power frequency inversion charging all-in-one machine with circuit protection |
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