CN111443629A - Power supply and control circuit applied to cube star brake sail - Google Patents

Power supply and control circuit applied to cube star brake sail Download PDF

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Publication number
CN111443629A
CN111443629A CN202010253462.XA CN202010253462A CN111443629A CN 111443629 A CN111443629 A CN 111443629A CN 202010253462 A CN202010253462 A CN 202010253462A CN 111443629 A CN111443629 A CN 111443629A
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capacitor
resistor
pin
circuit
super capacitor
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CN111443629B (en
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周航
黄跃
张翔
李佩亭
廖文和
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/25Pc structure of the system
    • G05B2219/25257Microcontroller

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

The invention discloses a power supply and control circuit applied to a cube star brake sail, which comprises: the super capacitor charging circuit is used for charging and protecting the super capacitor; the automatic discharging circuit is used for monitoring the voltage of the super capacitor charging circuit, automatically discharging when the voltage reaches a threshold value, and driving the braking sail burning circuit; the ADC acquisition circuit is used for acquiring a voltage value at the input end of the PWM output control circuit, a current value at the output end of the PWM output control circuit and a voltage value at the input end of the super capacitor charging circuit; the PWM output control circuit is used for receiving the PWM square wave signal, adjusting the bus voltage according to the acquired current and voltage information and charging the super capacitor charging circuit; and executing a discharging command, changing the voltage of the super capacitor charging circuit, and triggering the automatic discharging circuit to discharge. In conclusion, the bus voltage can be automatically regulated, more voltage selections are provided, the application universality is improved, the discharge is controlled by hardware triggering, the discharge can be circulated, and the reliability is enhanced.

Description

Power supply and control circuit applied to cube star brake sail
Technical Field
The invention belongs to the technical field of cube star control, and particularly relates to a power supply and control circuit applied to a cube star brake sail.
Background
In recent years, with the rapid development of technologies such as communication, photoelectric elements, materials, sensors and the like, the cubic satellite with the characteristics of low cost and high functional density is gradually raised, so that the development cost and the development period of the satellite are greatly reduced, and the cubic satellite can be used for remote measurement and test.
The quantity of cubic stars emitted by each country is more and more, most of the cubic stars do not have a self-contained off-orbit system, the design life of the cubic stars is only 1-3 years generally, and slow off-orbit in a natural state is at least more than 10 years, so that the quantity of space garbage on the earth orbit is increased increasingly, the space garbage becomes a potential hazard of an effective on-orbit spacecraft, and the space garbage is not beneficial to detecting the space by human beings in the future. At present, the human technology cannot effectively derail the spacecraft which has failed to become space debris in a large range. Therefore, equipping future spacecraft with an off-orbit system is the primary means of mitigating the growth of space debris.
The braking sail is one of the cube star derailing devices which are widely applied at present, a circuit system of the derailing device can initially realize autonomous power supply timing, but a common DC-DC voltage stabilizing module and a capacitor protection module are adopted in a power supply circuit, and the bus voltage cannot be regulated autonomously; and the method for controlling the discharge of the super capacitor by the software output high level detection has lower reliability and can not realize circular discharge.
Disclosure of Invention
The invention aims to provide a power supply and control circuit applied to a cubic star brake sail, which has the characteristics of supporting cyclic discharge, wide universality, high reliability and the like.
The technical solution for realizing the purpose of the invention is as follows: a power and control circuit for a cubebar sail, the circuit comprising: a power supply circuit and a control circuit;
wherein, power supply circuit includes:
the super capacitor charging circuit is used for charging and protecting the super capacitor;
the automatic discharging circuit is used for monitoring the voltage of the super capacitor charging circuit, automatically discharging when the voltage reaches a preset threshold value, and driving the braking sail burning circuit;
wherein, control circuit includes:
the ADC acquisition circuit is used for acquiring a voltage value at the input end of the PWM output control circuit, a current value at the output end of the PWM output control circuit and a voltage value at the input end of the super capacitor charging circuit and feeding back the voltage values to the main control chip;
the PWM output control circuit is used for receiving the PWM square wave signal, adjusting the bus voltage according to the current and voltage information acquired by the ADC acquisition circuit and charging the super capacitor charging circuit; and executing a discharging command, changing the voltage of the super capacitor charging circuit, and triggering the automatic discharging circuit to discharge.
Further, the super capacitor charging circuit comprises a second integrated BW6101 chip, a third integrated BW6101 chip, a first diode, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a second super capacitor and a ninth super capacitor; the positive electrodes of the first diode and the second diode are connected in parallel, the positive electrode of the first diode is connected with the output end of the PWM output control circuit, and the negative electrode of the first diode is connected with the first pin of the second integrated BW6101 chip through a sixth resistor and a seventh resistor which are sequentially connected in series; the first pin of the second integrated BW6101 chip is connected to the third pin thereof through a third resistor, and the first pin is also connected to the second pin thereof and the first pin of the third integrated BW6101 chip through a second super capacitor, wherein the first pin of the second integrated BW6101 chip is connected to the anode of the second super capacitor; the fifth pin of the second integrated BW6101 chip is connected with the second pin thereof through a second resistor; the first pin of the third integrated BW6101 chip is connected with the third pin thereof through a fifth resistor and is grounded through a ninth super capacitor; the second pin of the third integrated BW6101 chip is grounded, and the fifth pin is grounded through a fourth resistor.
Further, the automatic discharge circuit comprises a fifth integrated ADR381ARTZ chip, a Schmidt trigger, a first resistor, an eighth resistor, an eleventh resistor, a thirteenth resistor, a fifteenth resistor, a sixteenth resistor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a third PMOS tube and a fourth NMOS tube; a third pin of the fifth integrated ADR381ARTZ chip is grounded, the first pin is connected with VCC and is grounded through a twelfth capacitor and a thirteenth capacitor, the second pin is grounded through an eleventh capacitor and is connected with a second pin of a Schmitt trigger; a third pin of the Schmitt trigger is connected with the anode of the second super capacitor through a thirteenth resistor and an eleventh resistor which are sequentially connected in series, and the third pin is grounded through a fifteenth resistor and a sixteenth resistor which are sequentially connected in series; v + of the Schmitt trigger is connected with VCC5V, and V-is connected with GND; the first pin of the Schmitt trigger is connected with the third pin of the Schmitt trigger through an eighth resistor and is also connected with the G end of a fourth NMOS tube; the end S of the fourth NMOS tube is grounded, and the end D is connected with the end S of the third PMOS tube and the anode of the second super capacitor through a first resistor; the G end of the third PMOS tube is connected with the first resistor and the common end of the D end of the fourth NMOS tube; and the D end of the third PMOS tube is used as output and is connected with a braking sail burning line circuit.
Furthermore, the PWM output control circuit includes a first PMOS transistor, a second NMOS transistor, a twelfth resistor, a fourteenth resistor, a third diode, a first super capacitor, a fourth super capacitor, a fifth capacitor, and a first inductor; the end S of the second NMOS tube is grounded, the end G is connected with the PWM input, and the end D is connected with VCC through a fourteenth resistor and a twelfth resistor which are sequentially connected in series; the end G of the first PMOS tube is connected with the common end of a twelfth resistor and a fourteenth resistor, the end S is connected with the positive electrodes of the VCC and the first super capacitor, the negative electrode of the first super capacitor is grounded, the end D is connected with the negative electrode of the third diode, the positive electrode of the third diode is grounded, the end D is connected with the positive electrode of the first diode through the first inductor, the common ends of the first inductor and the positive electrode of the first diode are grounded through the fifth capacitor and the fourth super capacitor respectively, and the negative electrode of the fourth super capacitor is grounded.
The ADC acquisition circuit further comprises a first integrated AD7928 chip, an eleventh integrated MAX9938TEUK + chip, a fifth operational amplifier, a nineteenth operational amplifier, a twenty-first operational amplifier, a ninth resistor, a tenth resistor, a forty-eighth resistor, a forty-ninth resistor, a fifty-fourth resistor, a fifty-seventh resistor, a third capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a tenth capacitor, a twenty-first capacitor, a twenty-fifth capacitor and a thirty-fifth capacitor, wherein the fourth, eighth, ninth, tenth, seventeen and twenty pins of the first integrated AD7928 chip are all grounded, the fifth and sixth pins are all connected with VCC3.3V and are grounded through the third capacitor and the sixth capacitor respectively, the seventh pin is connected with the second pin of the Schmidt trigger, the eleventh, twelfth and thirteenth pins are short-circuited, the nineteenth pin is connected with VCC3.3V and are grounded through the seventh capacitor and the eighth capacitor respectively, the first, the second, the fifth, the thirteenth and fifteenth pins are connected with the fifth and fifteenth pins of the fifth integrated AD7928 chip, the fifth and fifth integrated resistor, the fifth pin is connected with the fifth and the fifth capacitor, the fifth and the fifth pin of the fifth and the fifth integrated AD7928 chip, and the fifth pin are connected with the fifth and the fifth pin of the fifth and the fifth capacitor respectively connected with the fifth and the fifth pin of the fifth integrated AD integrated resistor.
Compared with the prior art, the invention has the following remarkable advantages: 1) the invention can detect the voltage and the current of the bus, can automatically adjust the voltage of the bus according to different requirements, provides more voltage selections compared with the traditional DC-DC voltage stabilization, and increases the universality of application; 2) the invention utilizes the Schmitt trigger to realize autonomous discharge, and compared with the traditional circuit program control, the invention enhances the reliability by hardware trigger control and can support circular discharge.
The present invention is described in further detail below with reference to the attached drawing figures.
Drawings
FIG. 1 is a circuit diagram of a super capacitor charging circuit in one embodiment.
FIG. 2 is a circuit diagram of an automatic discharge circuit in one embodiment.
Fig. 3 is a circuit diagram of a PWM output control circuit in one embodiment.
FIG. 4 is a circuit diagram of an ADC acquisition circuit in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, a power and control circuit for a cubebar sail is provided, the circuit comprising: a power supply circuit and a control circuit;
wherein, power supply circuit includes:
the super capacitor charging circuit is used for charging the super capacitor, limiting the current, avoiding the reverse current flowing and playing a good protection role on the super capacitor;
the automatic discharging circuit is used for monitoring the voltage of the super capacitor charging circuit, automatically discharging when the voltage reaches a preset threshold value, and driving the braking sail burning circuit;
here, the brake sail burn-in circuit is any burn-in circuit in the prior art.
Wherein, control circuit includes:
the ADC acquisition circuit is used for acquiring a voltage value at the input end of the PWM output control circuit, a current value at the output end of the PWM output control circuit and a voltage value at the input end of the super capacitor charging circuit and feeding back the voltage values to the main control chip; the main control chip is used for adjusting current;
the PWM output control circuit is used for receiving the PWM square wave signal, adjusting the bus voltage according to the current and voltage information acquired by the ADC acquisition circuit and charging the super capacitor charging circuit; and executing a discharging command, changing the voltage of the super capacitor charging circuit, and triggering the automatic discharging circuit to discharge. The PWM square wave signal is generated by the main control chip.
Further, in one embodiment, with reference to fig. 1, the super capacitor charging circuit includes a second integrated BW6101 chip U2, a third integrated BW6101 chip U3, a first diode D1, a second diode D2, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a second super capacitor C2, and a ninth super capacitor C9; the anodes and the cathodes of the first diode D1 and the second diode D2 are connected in parallel, wherein the anode is connected with the output end of the PWM output control circuit, and the cathode is connected with a first pin of a U2 of the second integrated BW6101 chip through a sixth resistor R6 and a seventh resistor R7 which are sequentially connected in series; the first pin of the second integrated BW6101 chip U2 is connected to the third pin thereof through a third resistor R3, and the first pin is also connected to the second pin thereof and the first pin of the third integrated BW6101 chip U3 through a second super capacitor C2, wherein the first pin of the second integrated BW6101 chip U2 is connected to the anode of the second super capacitor C2; the fifth pin of the second integrated BW6101 chip U2 is connected to the second pin thereof through a second resistor R2; the first pin of the third integrated BW6101 chip U3 is connected to the third pin thereof through a fifth resistor R5, and is grounded through a ninth super capacitor C9; the second pin of the third integrated BW6101 chip U3 is grounded, and the fifth pin is grounded through a fourth resistor R4.
Further, in one embodiment, with reference to fig. 2, the automatic discharge circuit includes a fifth integrated ADR381ARTZ chip U5, a schmitt trigger U4, a first resistor R1, an eighth resistor R8, an eleventh resistor R11, a thirteenth resistor R13, a fifteenth resistor R15, a sixteenth resistor R16, an eleventh capacitor C11, a twelfth capacitor C12, a thirteenth capacitor C13, a third PMOS transistor Q3, and a fourth NMOS transistor Q4; a third pin of the fifth integrated ADR381ARTZ chip U5 is grounded, the first pin is connected with VCC and is grounded through a twelfth capacitor C12 and a thirteenth capacitor C13 respectively, and the second pin is grounded through an eleventh capacitor C11 and is connected with a second pin of a Schmidt trigger U4; a third pin of the schmitt trigger U4 is connected with the anode of the second super capacitor C2 through a thirteenth resistor R13 and an eleventh resistor R11 which are sequentially connected in series, and the third pin is also grounded through a fifteenth resistor R15 and a sixteenth resistor R16 which are sequentially connected in series; v + of the Schmitt trigger U4 is connected with VCC5V, and V-is connected with GND; the first pin of the Schmitt trigger U4 is connected with the third pin through an eighth resistor R8 and is also connected with the G end of a fourth NMOS tube Q4; the S end of the fourth NMOS transistor Q4 is grounded, and the D end is connected with the S end of the third PMOS transistor Q3 and the anode of the second super capacitor C2 through a first resistor R1; the G end of the third PMOS tube Q3 is connected with the common end of the ends of the first resistor R1 and the fourth NMOS tube Q4D; the D terminal of the third PMOS transistor Q3 is connected as an output to the brake sail burning line circuit P2.
Further, in one embodiment, with reference to fig. 3, the PWM output control circuit includes a first PMOS transistor Q1, a second NMOS transistor Q2, a twelfth resistor R12, a fourteenth resistor R14, a third diode D3, a first super capacitor C1, a fourth super capacitor C4, a fifth capacitor C5 and a first inductor L, an S terminal of the second NMOS transistor Q2 is grounded, a G terminal is connected to the PWM input, a D terminal is connected to VCC through the fourteenth resistor R14 and the twelfth resistor R12 which are connected in series in sequence, a G terminal of the first PMOS transistor Q1 is connected to a common terminal of the twelfth resistor R12 and the fourteenth resistor R14, an S terminal is connected to the VCC and an anode of the first super capacitor C1, a cathode of the first super capacitor C1 is grounded, a D terminal is connected to a cathode of the third diode D3, an anode of the third diode D3 is grounded, and a D terminal is connected to the anode of the first diode D L and a cathode of the first super capacitor C L through the first inductor R8741, and a cathode of the first super capacitor C L are grounded, respectively.
In one embodiment, with reference to fig. 4, the ADC acquisition circuit includes a first integrated AD7928 chip U, an eleventh integrated MAX9938TEUK + chip U, a fifth operational amplifier Q, a nineteenth operational amplifier Q, a twenty-first operational amplifier Q, a ninth resistor R, a tenth resistor R, a forty-eighth resistor R, a forty-ninth resistor R, a fifty-fourth resistor R, a fifty-seventh resistor R, a third capacitor C, a sixth capacitor C, a seventh capacitor C, an eighth capacitor C, a tenth capacitor C, a twenty-first capacitor C, a twenty-fifth capacitor C and a thirty-fifth capacitor C, the fourth, eighth, ninth, tenth, seventeenth and twenty pins of the first integrated AD7928 chip U are all grounded, the fifth and sixth pins are all grounded through the third capacitor C and the sixth capacitor C, the seventh pin is connected to the second pin of the schmitt trigger U, the eleventh, twelfth and thirteenth pins are shorted, the ninth pin VCC is connected to the fifth pin, the sixth pin is connected to the fifth pin VCC pin, the sixth pin, the fifth pin is connected to the fifth pin, the eleventh pin, twelfth pin, thirteenth pin, the eleventh pin, twelfth pin, the eleventh pin, twelfth pin, the eleventh pin, twelfth pin, the eleventh pin of the twenty-ninth pin of the sixth pin of the second integrated AD 7928U, the sixth pin, the second integrated AD7928, the second pin, the sixth pin, the second pin of the second.
Based on the combination of the above embodiments, the relevant working process of the power supply and control circuit applied to the cuboidal brake sail of the invention is as follows:
the power supply is input from the PWM output control circuit, the ADC acquisition circuit can detect bus voltage and current, the PWM input end can be controlled to input PWM square waves, when the input is high level, the first PMOS tube Q1 and the second NMOS tube Q2 are conducted, the PWM output control circuit conducts the fifth capacitor C5 to charge, the voltage is increased, when the input is low level, the first PMOS tube Q1 and the second NMOS tube Q2 are cut off, the PWM output control circuit is cut off, the third diode D3, the first inductor L and the fifth capacitor C5 form a loop, the voltage is slowly reduced, therefore, the duty ratio of the PWM square waves is controlled to adjust the size of the circuit voltage, the first diode D1 and the second diode D2 prevent current from reversely flowing, the sixth resistor R6 and the seventh resistor R7 are used for preventing current from reversely flowing, the second super capacitor C2 and the ninth super capacitor C9 are charged, the super capacitor U3 and U4 protect the capacitor from being overcharged, when the charging voltage is greater than a preset threshold, the charge threshold is greater than a preset threshold, the first super capacitor C3 and the ninth super capacitor C9 is automatically switched on until the PMOS tube Q465 is switched on, and the third transistor Q2 is switched on, and the NMOS transistor Q is switched on to automatically, and the high level is switched off, and the high voltage of the NMOS transistor is switched on.
In conclusion, the bus voltage can be automatically regulated, more voltage selections are provided, the application universality is improved, the discharge is controlled by hardware triggering, the discharge can be circulated, and the reliability is enhanced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. A power supply and control circuit for a cubebar sail, characterized in that it comprises: a power supply circuit and a control circuit;
wherein, power supply circuit includes:
the super capacitor charging circuit is used for charging and protecting the super capacitor;
the automatic discharging circuit is used for monitoring the voltage of the super capacitor charging circuit, automatically discharging when the voltage reaches a preset threshold value, and driving the braking sail burning circuit;
wherein, control circuit includes:
the ADC acquisition circuit is used for acquiring a voltage value at the input end of the PWM output control circuit, a current value at the output end of the PWM output control circuit and a voltage value at the input end of the super capacitor charging circuit and feeding back the voltage values to the main control chip;
the PWM output control circuit is used for receiving the PWM square wave signal, adjusting the bus voltage according to the current and voltage information acquired by the ADC acquisition circuit and charging the super capacitor charging circuit; and executing a discharging command, changing the voltage of the super capacitor charging circuit, and triggering the automatic discharging circuit to discharge.
2. A power and control circuit applied to a cube-star brake sail as claimed in claim 1, wherein the super capacitor charging circuit comprises a second integrated BW6101 chip (U2), a third integrated BW6101 chip (U3), a first diode (D1), a second diode (D2), a second resistor (R2), a third resistor (R3), a fourth resistor (R4), a fifth resistor (R5), a sixth resistor (R6), a seventh resistor (R7), a second super capacitor (C2) and a ninth super capacitor (C9); the positive and negative electrodes of the first diode (D1) and the second diode (D2) are connected in parallel, the positive electrode of the first diode is connected with the output end of the PWM output control circuit, and the negative electrode of the first diode is connected with the first pin of a second integrated BW6101 chip (U2) through a sixth resistor (R6) and a seventh resistor (R7) which are sequentially connected in series; the first pin of the second integrated BW6101 chip (U2) is connected with the third pin thereof through a third resistor (R3), and simultaneously the first pin is also connected with the second pin thereof through a second super capacitor (C2) and the first pin of the third integrated BW6101 chip (U3), wherein the first pin of the second integrated BW6101 chip (U2) is connected with the anode of the second super capacitor (C2); the fifth pin of the second integrated BW6101 chip (U2) is connected with the second pin thereof through a second resistor (R2); the first pin of the third integrated BW6101 chip (U3) is connected with the third pin thereof through a fifth resistor (R5), and is grounded through a ninth super capacitor (C9); the second pin of the third integrated BW6101 chip (U3) is grounded, and the fifth pin is grounded through a fourth resistor (R4).
3. The power supply and control circuit applied to a cuboidal brake sail, according to claim 1 or 2, characterized in that said automatic discharge circuit comprises a fifth integrated ADR381ARTZ chip (U5), a schmidt trigger (U4), a first resistor (R1), an eighth resistor (R8), an eleventh resistor (R11), a thirteenth resistor (R13), a fifteenth resistor (R15), a sixteenth resistor (R16), an eleventh capacitor (C11), a twelfth capacitor (C12), a thirteenth capacitor (C13), a third PMOS transistor (Q3) and a fourth NMOS transistor (Q4); a third pin of the fifth integrated ADR381ARTZ chip (U5) is grounded, the first pin is connected with VCC and is grounded through a twelfth capacitor (C12) and a thirteenth capacitor (C13) at the same time, and the second pin is grounded through an eleventh capacitor (C11) and is connected with a second pin of a Schmidt trigger (U4) at the same time; a third pin of the Schmitt trigger (U4) is connected with the anode of the second super capacitor (C2) through a thirteenth resistor (R13) and an eleventh resistor (R11) which are sequentially connected in series, and the third pin is grounded through a fifteenth resistor (R15) and a sixteenth resistor (R16) which are sequentially connected in series; v + of the Schmitt trigger (U4) is connected with VCC5V, and V-is connected with GND; the first pin of the Schmitt trigger (U4) is connected with the third pin of the Schmitt trigger through an eighth resistor (R8) and is also connected with the G end of a fourth NMOS tube (Q4); the S end of the fourth NMOS transistor (Q4) is grounded, and the D end of the fourth NMOS transistor is connected with the S end of a third PMOS transistor (Q3) and the anode of the second super capacitor (C2) through a first resistor (R1); the G end of the third PMOS tube (Q3) is connected with the common end of the D ends of the first resistor (R1) and the fourth NMOS tube (Q4); and the D end of the third PMOS pipe (Q3) is used as an output and is connected with a braking sail burning line circuit.
4. The power supply and control circuit applied to the cube star brake sail is characterized in that the PWM output control circuit comprises a first PMOS (P-channel metal oxide semiconductor) tube (Q1), a second NMOS (Q2), a twelfth resistor (R12), a fourteenth resistor (R14), a third diode (D3), a first super capacitor (C1), a fourth super capacitor (C4), a fifth capacitor (C5) and a first inductor (L), wherein the S end of the second NMOS (Q2) is grounded, the G end of the second NMOS is connected with a PWM input, the D end of the second NMOS is connected with VCC through a fourteenth resistor (R14) and a twelfth resistor (R12) which are sequentially connected in series, the G end of the first NMOS (Q1) is connected with the common end of a twelfth resistor (R12) and a fourteenth resistor (R14), the S end of the first super capacitor (C56) is connected with the VCC, the positive electrode of the first super capacitor (P-channel metal oxide semiconductor) and the first super capacitor (C865) is connected with the ground, the negative electrode of the first diode (P-channel metal oxide semiconductor) and the first diode (P-channel inductor (L), the negative electrode of the first super capacitor (P-channel inductor (36867) is connected with the first diode L) and the first diode (36867) and the first diode (L).
5. The power supply and control circuit applied to the cube brake sail is characterized in that the ADC acquisition circuit comprises a first integrated AD7928 chip (U), an eleventh integrated MAX9938TEUK + chip (U), a fifth operational amplifier (Q), a nineteenth operational amplifier (Q), a twenty-first operational amplifier (Q), a ninth resistor (R), a tenth resistor (R), a forty-eighth resistor (R), a forty-ninth resistor (R), a fifty-fourth resistor (R), a fifty-seventh resistor (R), a third capacitor (C), a sixth capacitor (C), a seventh capacitor (C), an eighth capacitor (C), a tenth capacitor (C), a twenty-first capacitor (C), a twenty-fifth capacitor (C) and a thirty-fifth capacitor (C), the fourth, the eighth, the ninth, the seventeenth and the twenty-fifth pins of the first integrated AD7928 chip (U) are all grounded, the fifth and sixth pins of the integrated AD7928 chip (U) are all connected with a fifth capacitor (C), the sixth pin VCC) and the fifth capacitor (C), the fifteenth capacitor (C), the fifth capacitor (C), the fifteenth capacitor (C), the eleventh capacitor (C), the fifth capacitor (C), the fifteenth capacitor (C), the fifth capacitor (C), the fifteenth capacitor (C), the fifth capacitor (C) and the fifteenth capacitor (C) are connected with the fifteenth capacitor (C), the fifteenth capacitor (C) are connected with the fifth capacitor (C), the fifth capacitor (C) connected with the fifth capacitor (C) and the fifteenth capacitor (C) connected with the fifth capacitor (C) connected with the fifth capacitor (C) connected with the fifth capacitor (C) and the fifth capacitor (C) connected with the fifth capacitor (C) connected with the fifth capacitor (C) connected with the fifth capacitor (C).
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