CN209823656U - Power supply circuit based on MBUS bus micropower - Google Patents
Power supply circuit based on MBUS bus micropower Download PDFInfo
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- CN209823656U CN209823656U CN201920761319.4U CN201920761319U CN209823656U CN 209823656 U CN209823656 U CN 209823656U CN 201920761319 U CN201920761319 U CN 201920761319U CN 209823656 U CN209823656 U CN 209823656U
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Abstract
The utility model discloses a supply circuit based on MBUS bus micropower, including getting electric unit, modem unit to and receive the power supply unit who gets the voltage of electric unit output and handle, power supply unit includes the high-pressure energy storage unit, is used for storing and transmits the electric current of getting electric unit output; the detection unit is used for detecting the voltage output by the high-voltage energy storage unit and outputting high and low levels; the low-voltage stabilizing unit is used for performing voltage stabilizing treatment on the voltage output by the high-voltage energy storage unit and receiving and storing the current transmitted by the high-voltage energy storage unit; and the switch unit is used for controlling the on or off of the low-voltage stabilizing unit through the high and low levels output by the detection unit. The utility model discloses a can prevent through high-pressure energy storage unit that intelligent unit equipment from starting too big and draw the low-voltage of electric current in the twinkling of an eye, still can normally start and intelligent unit equipment under the circumstances of guaranteeing intelligent equipment start-up heavy current in the twinkling of an eye.
Description
Technical Field
The utility model relates to a supply circuit based on MBUS bus micropower is applicable to the energy-conserving product technology field of low-power consumption circuit.
Background
Because products need to meet the requirements of low power consumption performance, the products are usually powered by a battery, in order to reduce the cost of increasing batteries and achieve the purposes of energy conservation and consumption reduction, the intelligent unit products can be powered by an MBUS bus micropower power supply mode, but because the intelligent unit products can generate larger starting current at the starting moment, and the MBUS bus micropower power supply cannot meet the large current at the starting moment of the intelligent unit products, an energy storage capacitor is added into the equipment in the existing MBUS power supply communication scheme, the energy storage capacitor is charged by the large current at the starting time, the slave equipment is powered by the small current at the constant current after being fully charged, the normal communication of the intelligent unit products is ensured, and the intelligent unit products cannot normally work in the charging process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a supply circuit based on MBUS bus micropower.
Realize the utility model discloses the technical solution of purpose does: the utility model provides a MBUS bus micropower supply circuit, is used for connecting the MBUS bus and output voltage and electric current get the electric unit, be used for getting the voltage of electric unit output and modulate and output high voltage signal's modem unit to and get the power supply unit that the voltage of electric unit output and handle, its characterized in that, power supply unit includes:
the high-voltage energy storage unit is used for storing and transmitting the current output by the power taking unit;
the detection unit is used for detecting the voltage output by the high-voltage energy storage unit and outputting high and low levels;
the low-voltage stabilizing unit is used for performing voltage stabilizing treatment on the voltage output by the high-voltage energy storage unit and receiving and storing the current transmitted by the high-voltage energy storage unit;
and the switch unit is used for controlling the on or off of the low-voltage stabilizing unit through the high and low levels output by the detection unit.
Further, the high-voltage energy storage unit comprises diodes D7 and D8 and capacitors C20 and C19, the cathode of the diode D7 is connected with the anode of the diode D8, the cathode of the diode D8 is sequentially connected with the capacitor C20 and the capacitor C19, and the other end of the capacitor C20 and the other end of the capacitor C19 are grounded after being connected.
Further, the detection unit comprises resistors R18, R21, R22, a diode D9, a capacitor C22 and a chip U3, wherein one end of the capacitor C22 is connected with the anode of the diode D9 through a resistor R21 and a resistor R18, the cathode of the diode D9 is connected with the other end of the capacitor C22, one end of the chip U3 is sequentially connected with one end of a resistor R22 and one end of the capacitor C22, and the other end of the chip U3 is sequentially connected with the other end of the resistor R22 and the other end of the capacitor C22 and then grounded.
Further, the low voltage stabilizing unit comprises a voltage stabilizer U2, an input end of the voltage stabilizer U2 is connected with an output end of the high voltage energy storage unit, and the voltage stabilizer U2 converts the high voltage output by the high voltage energy storage unit into 3.3V voltage.
Further, the switching unit comprises a resistor R20, a diode D10, a MOS transistor Q9 and a triode Q10, wherein the anode and the cathode of the diode D10 are connected through a resistor R20, one end of the resistor R20 is connected with the detection unit, the other end of the resistor R20 is connected with the base of the triode Q10, the collector of the triode Q10 is connected with the gate of the MOS transistor Q9, and the source of the MOS transistor Q9 is connected with the output end of the low-voltage regulator unit.
Further, the power taking unit comprises an access port CN1 used for being connected to two ends of the MBUS bus, a protection circuit connected with the access port and used for overcurrent protection and interference resistance, and a rectification circuit used for converting alternating current into direct current.
Compared with the prior art, the utility model, it is showing the advantage and lies in: the current of the electricity taking unit is stored through the high-voltage energy storage unit, the switch unit is turned on only after the detection unit detects that the electric quantity meets the requirement after the electric quantity is stored to a certain value, the high-voltage energy storage unit can prevent the intelligent unit equipment from being pulled down due to overlarge current at the moment of starting, the intelligent unit equipment can still be normally started under the condition of guaranteeing large current at the moment of starting, the charging time is short, and the efficiency is improved; the anti-interference capability of power supply and communication can be enhanced through the protection circuit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments of the present invention or the prior art are briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a power supply circuitry architecture;
FIG. 2 is a schematic circuit diagram of the power-taking unit and the modulation and demodulation unit;
FIG. 3 is a schematic circuit diagram of a power supply unit;
fig. 4 is a schematic diagram of the entire circuit of the power supply circuit.
Detailed Description
With reference to fig. 1 to 4, an MBUS bus micropower supply circuit includes a power-taking unit for connecting an MBUS bus and outputting a voltage and a current, a modem unit for receiving the voltage output by the power-taking unit, modulating the voltage and outputting a high-voltage signal, and a power supply unit for receiving the voltage output by the power-taking unit and processing the voltage, wherein the power supply unit includes:
the high-voltage energy storage unit is used for storing and transmitting the current output by the power taking unit;
the detection unit is used for detecting the voltage output by the high-voltage energy storage unit and outputting high and low levels;
the low-voltage stabilizing unit is used for performing voltage stabilizing treatment on the voltage output by the high-voltage energy storage unit and receiving and storing the current transmitted by the high-voltage energy storage unit;
and the switch unit is used for acquiring the high and low levels output by the detection unit to control the on or off of the low-voltage stabilization unit.
The power taking unit comprises an access port CN1 used for accessing two ends of an MBUS bus, a protection circuit connected with the access port and used for overcurrent protection and interference resistance, and a rectification circuit used for converting alternating current into direct current, wherein the protection circuit comprises a self-recovery fuse F1 and a transient suppression diode D4, one end of F1 is connected with a 2 port of CN1, the other end of F1 is connected with one end of D4, the other end of D4 is connected with a 1 port of CN1, the rectification circuit comprises a rectifier diode D1 and a rectifier diode D6, a 3 port of D1 is connected with one end of D4, a 3 port of D6 is connected with the other end of D4, a 2 port of D1 is connected with a 2 port of D6 and then connected with a modulation demodulation unit, and a 1 port of D1 is connected with a port of D6 and then grounded (PGND).
The modulation and demodulation unit comprises a transistor Q1, a transistor Q2, a transistor Q3, a transistor Q4 and a transistor Q4, wherein the base of the transistor Q4 is connected with the emitter of the transistor Q4 through a diode D4, the emitter of the transistor Q4 is connected with one end of a capacitor C4 through a connecting resistor R4, a diode D4 and a resistor R4, the other end of the resistor R4 is connected with the emitter of the transistor Q4 and then grounded, the base of the transistor Q4 is connected with one end of a resistor R4 after being connected with the emitter of the transistor Q4, the base of the transistor Q4 is connected with the collector of the transistor Q4 and then grounded through the resistor R4, the collector of the transistor Q4 is connected with the high-voltage energy storage unit, and the emitter of the transistor Q4 is connected with the base of the resistor R4 after being connected with the base of the transistor Q4. The base electrode of the triode Q4 is connected with the collector electrode of the triode Q1 and then connected with a resistor R11 and the collector electrode of the triode Q7, the emitter electrode of the Q7 is connected with the base electrode of the Q7 through a resistor R14, the R14 is connected with the collector electrode of the triode Q6 through a resistor R13, the emitter electrode of the Q6 is connected with TXD-EN (transmitting pin enabling end) of the MCU intelligent device through a resistor R7, and the base electrode of the Q6 is connected with URT1-TX (receiving data pin) of the MCU intelligent device through a resistor R10. The collector of Q5 is connected with the emitter of triode Q8 through resistance R15, resistance R17 and then is grounded, the base of Q8 is connected between R15 and R17, the collector of Q8 is connected with 3.3V of power supply through one end of resistance R16, the other end of R16 is connected with one end of resistance R23 and connected with URT1-RX (receiving data pin) of MCU intelligent equipment, and the other end of R23 is connected with RX-INT (receiving trigger end) of MCU intelligent equipment.
The high-voltage energy storage unit comprises diodes D7 and D8 and capacitors C20 and C19, the cathode of the diode D7 is connected with the anode of the diode D8, the anode of the diode D7 is grounded, the cathode of the diode D8 is sequentially connected with one ends of an energy storage filter capacitor C20 and an energy storage filter capacitor C19, and the other end of the capacitor C20 is connected with the other end of the capacitor C19 and then grounded.
The detection unit comprises resistors R18, R21, R22, a diode D9, a capacitor C22 and a chip U3, wherein one end of the capacitor C22 is connected with the anode of the diode D9 through one ends of a resistor R21 and a resistor R18, the cathode of the diode D9 is connected with the other end of the capacitor C22, the GND end of the chip U3 is sequentially connected with one end of a resistor R22 and one end of a capacitor C22 to be connected with the anode of the D9, the VCC end of the chip U3 is sequentially connected with the other end of a resistor R22 and the other end of the capacitor C22 to be connected with the cathode of the D22, the GND end of the U22 is connected with the other end of the R22 and then grounded, the RESET end of the U22 is connected with the switch unit, and the R22 and the C22 are connected with the other end of the.
The low-voltage stabilizing unit comprises a voltage stabilizer U2, the VIN end of U2 is connected with the other end of R18 and then is connected with one end of C19, the VOUT end of U2 is connected with one end of a low-voltage energy storage capacitor C15 and a filter capacitor C17 in sequence, the GND end of U2 is connected with the other end of C15 and the other end of C17 in sequence and then is grounded, the input end of the voltage stabilizer U2 is connected with the output end of the high-voltage energy storage unit, and the voltage stabilizer U2 converts the high voltage output by the high-voltage energy storage unit into 3.3V.
The switching unit comprises a resistor R20, a diode D10, a MOS tube Q9 and a triode Q10, wherein the cathode of the diode D10 is connected with one end of a resistor R20 and then connected with the RESET end of a U3, the anode of the D10 is connected with the other end of the R20 and then connected with one end of a capacitor C23, one end of a C23 is connected with the base of a triode Q10, the other end of a C23 is connected with the emitter of a Q10 and then grounded, the collector of a Q10 is connected with one end of a resistor R19 and then connected with the gate of a MOS tube Q9, the source of a MOS tube Q9 is connected with the other end of the R19, the drain of the Q19 is sequentially connected with one ends of a voltage stabilizing filter capacitor C19 and a voltage stabilizing filter capacitor C19, the other ends of the C19 and the C19 are connected with the emitter of the Q.
The working process is as follows: firstly, access ports CN1 connected to two ends of an MBUS bus in a power taking unit take voltage and current in the MBUS bus, when the current of a circuit at the rear stage of F1 is overlarge, F1 is disconnected, the current is opened after normal, D4 plays a role of cutting off the circuit when the current is overlarge, the circuit is closed when the current is normal, the anti-interference capability of power supply and communication is enhanced, alternating current is converted into direct current through D1 and D6 and then is transmitted to a modulation and demodulation unit, the modulation and demodulation unit is adjusted to modulate high voltage transmitted by the power taking unit, an MCU is modulated into a TTL (generally 3.3V) level circuit which can be identified by intelligent equipment, so that external data is received, a TTL signal transmitted by the MCU intelligent equipment is modulated into an MBUS bus high voltage signal, so that the data is transmitted, the communication function of the MCU intelligent equipment is realized, and the level of the circuit is changed at the moment of power on, at the moment, the RX-INT is pulled down, the interference level does not influence the conduction of a discrete device, the power consumption during starting is reduced, the RX-INT is pulled to be high level only during sending, data are normally sent, meanwhile, the received current is taken from the modulation and demodulation unit and sent to the high-voltage energy storage unit, the high-voltage energy storage unit supplies power to the high-voltage energy storage unit, the high-voltage energy storage unit stores the data, the high-voltage energy storage unit is used for preventing the situation that the current is too high during starting of the panel intelligent unit from being pulled down to lower the rear-stage power supply level, so that stable power supply can not be realized to start the MCU intelligent equipment, then the stored current is transmitted to the low-voltage stabilizing unit, the low-voltage stabilizing unit stores the stored current, the detection unit performs voltage division detection on the voltage during the process that the high-voltage energy storage unit transmits the current to, the low-voltage stabilizing unit outputs stable 3.3V voltage to the MCU intelligent unit equipment. MCU smart machine starts to have a bigger start current in the twinkling of an eye, power consumptive serious in the twinkling of an eye, realize the energy storage to the electric current of getting the electric unit and supplying with low pressure steady voltage unit through high-pressure energy storage unit this moment, then low pressure steady voltage unit receives the electric current of high pressure energy storage unit transmission and stores, the voltage of detecting element to the output through high-pressure energy storage unit simultaneously detects, the disconnection of opening of control switch unit (controlling opening and closing of low pressure steady voltage unit promptly), can not consume the electric energy, when high pressure energy storage unit fills to can satisfy the electric current that MCU smart machine started in the twinkling of an eye, switch circuit opens, low pressure steady voltage unit output current gives MCU smart machine, satisfy still can normally start under the circumstances of smart machine start-.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a supply circuit based on MBUS bus micropower, is including being used for connecting the MBUS bus and output voltage and electric current get the electric unit, be used for getting the voltage of electric unit output and modulate and output high voltage signal's modem unit to and get the power supply unit that the voltage of electric unit output and handle, its characterized in that, supply unit includes:
the high-voltage energy storage unit is used for storing and transmitting the current output by the power taking unit;
the detection unit is used for detecting the voltage output by the high-voltage energy storage unit and outputting high and low levels;
the low-voltage stabilizing unit is used for performing voltage stabilizing treatment on the voltage output by the high-voltage energy storage unit and receiving and storing the current transmitted by the high-voltage energy storage unit;
and the switch unit is used for controlling the on or off of the low-voltage stabilizing unit through the high and low levels output by the detection unit.
2. The MBUS bus micropower-based power supply circuit as claimed in claim 1, wherein the high-voltage energy storage unit comprises diodes D7 and D8 and capacitors C20 and C19, the cathode of the diode D7 is connected with the anode of a diode D8, the cathode of the diode D8 is connected with a capacitor C20 and a capacitor C19 in sequence, and the other end of the capacitor C20 and the other end of the capacitor C19 are connected with the ground.
3. The power supply circuit based on MBUS bus micropower of claim 1, wherein the detection unit comprises resistors R18, R21, R22, a diode D9, a capacitor C22 and a chip U3, one end of the capacitor C22 is connected with the anode of the diode D9 through a resistor R21 and a resistor R18, the cathode of the diode D9 is connected with the other end of the capacitor C22, one end of the chip U3 is sequentially connected with one end of a resistor R22 and one end of a capacitor C22, and the other end of the chip U3 is sequentially connected with the other end of the resistor R22 and the other end of the capacitor C22 and then is grounded.
4. The power supply circuit based on the MBUS bus micropower is characterized in that the low-voltage stabilizing unit comprises a voltage stabilizer U2, the input end of the voltage stabilizer U2 is connected with the output end of the high-voltage energy storage unit, and the voltage stabilizer U2 converts the high voltage output by the high-voltage energy storage unit into 3.3V voltage.
5. The power supply circuit based on the MBUS bus micropower is characterized in that the switch unit comprises a resistor R20, a diode D10, a MOS tube Q9 and a triode Q10, wherein the anode and the cathode of the diode D10 are connected through a resistor R20, one end of the resistor R20 is connected with the detection unit, the other end of the resistor R20 is connected with the base electrode of the triode Q10, the collector electrode of the triode Q10 is connected with the gate electrode of the MOS tube Q9, and the source electrode of the MOS tube Q9 is connected with the output end of the low-voltage stabilizing unit.
6. The power supply circuit based on MBUS bus micropower of claim 1, wherein the power taking unit comprises an access port CN1 for accessing to two ends of the MBUS bus, a protection circuit connected with the access port for overcurrent protection and interference resistance, and a rectification circuit for converting alternating current into direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920761319.4U CN209823656U (en) | 2019-05-24 | 2019-05-24 | Power supply circuit based on MBUS bus micropower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920761319.4U CN209823656U (en) | 2019-05-24 | 2019-05-24 | Power supply circuit based on MBUS bus micropower |
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| CN209823656U true CN209823656U (en) | 2019-12-20 |
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| CN201920761319.4U Active CN209823656U (en) | 2019-05-24 | 2019-05-24 | Power supply circuit based on MBUS bus micropower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327114A (en) * | 2020-03-11 | 2020-06-23 | 瑞纳智能设备股份有限公司 | MBUS bus power supply system and multi-slave node load balancing method |
| CN117058955A (en) * | 2023-08-16 | 2023-11-14 | 艾伦科技(广州)有限公司 | Driving motor practical training teaching system and method for new energy automobile |
| CN117058955B (en) * | 2023-08-16 | 2024-04-23 | 艾伦科技(广州)有限公司 | Driving motor practical training teaching system and method for new energy automobile |
-
2019
- 2019-05-24 CN CN201920761319.4U patent/CN209823656U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327114A (en) * | 2020-03-11 | 2020-06-23 | 瑞纳智能设备股份有限公司 | MBUS bus power supply system and multi-slave node load balancing method |
| CN111327114B (en) * | 2020-03-11 | 2023-02-03 | 瑞纳智能设备股份有限公司 | MBUS bus power supply system and multi-slave node load balancing method |
| CN117058955A (en) * | 2023-08-16 | 2023-11-14 | 艾伦科技(广州)有限公司 | Driving motor practical training teaching system and method for new energy automobile |
| CN117058955B (en) * | 2023-08-16 | 2024-04-23 | 艾伦科技(广州)有限公司 | Driving motor practical training teaching system and method for new energy automobile |
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