CN107359679B - Charging and discharging circuit with intelligent control function based on ad sampling - Google Patents
Charging and discharging circuit with intelligent control function based on ad sampling Download PDFInfo
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- CN107359679B CN107359679B CN201710820437.3A CN201710820437A CN107359679B CN 107359679 B CN107359679 B CN 107359679B CN 201710820437 A CN201710820437 A CN 201710820437A CN 107359679 B CN107359679 B CN 107359679B
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- 238000005070 sampling Methods 0.000 title claims abstract description 58
- 238000007599 discharging Methods 0.000 title claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 95
- 238000002955 isolation Methods 0.000 claims abstract description 43
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 6
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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Abstract
The invention provides a charge-discharge circuit with an intelligent control function based on ad sampling, which comprises: a charge-discharge unit, comprising: the power supply comprises a charging power supply module, a super capacitor and a switch control circuit module, wherein the output end of the charging power supply module is connected to the positive electrode of the super capacitor, the negative electrode of the super capacitor is connected to the input end of the switch control circuit module, and the output end of the switch control circuit module is used for being connected to a load; a monitoring unit, comprising: MCU module, first sampling module, second sampling module, first isolation drive module, second isolation drive module and monitor power module, monitor power module is MCU module, first isolation drive module and second isolation drive module power supply. The charging and discharging circuit with the intelligent control function based on the ad sampling solves the problem that in the prior art, the first super capacitor voltage compensation unit and the second super capacitor voltage compensation unit can be mutually powered to cause high energy consumption.
Description
Technical Field
The invention relates to a charge-discharge circuit, in particular to a charge-discharge circuit with an intelligent control function based on ad sampling.
Background
The Chinese patent discloses a ripple compensation circuit with the bulletin number of CN 102868287B and a super capacitor charging and discharging device, wherein the ripple compensation circuit comprises a power grid side charging voltage sampling unit for sampling real-time voltage input from the power grid side when the super capacitor is charged; the charging voltage comparison unit is connected with the power grid side charging voltage sampling unit and is used for comparing the real-time voltage with a preset standard charging voltage when the super capacitor is charged to obtain a charging voltage correction signal; the first super capacitor voltage compensation unit is connected with the charging voltage comparison unit and is used for adjusting the voltages at two ends of the super capacitor according to the charging voltage correction signal when the super capacitor is charged. Although the ripple compensation circuit achieves the purpose of reducing the output ripple voltage at two ends of the super capacitor caused by the pulsating voltage input from the power grid side in the process of charging the super capacitor, the ripple compensation circuit has the following defects:
the purpose of the first super capacitor voltage compensation unit is that it sets up: according to the real-time voltage input by the sampling power grid side when the super capacitor is charged, the voltages at two ends of the super capacitor are regulated when the super capacitor is charged; the second super capacitor voltage compensation unit that sets up aim at: according to the real-time voltage at two ends of the super capacitor when the super capacitor is charged, the voltage at two ends of the super capacitor when the super capacitor is charged is regulated, but the voltage at two ends of the super capacitor is mutually independent by the first super capacitor voltage compensation unit and the second super capacitor voltage compensation unit, so that the situation that mutual conflict exists is very likely, one voltage regulator is smaller at two ends of the super capacitor, one voltage regulator is larger at two ends of the super capacitor, the first super capacitor voltage compensation unit and the second super capacitor voltage compensation unit are both equivalent to power supplies, one power supply with larger power supply voltage charges the other power supply with smaller power supply voltage, and the power supply with smaller power supply voltage (namely, the first super capacitor voltage compensation unit or the second super capacitor voltage compensation unit) is also likely to consume energy, so that the first super capacitor voltage compensation unit and the second super capacitor voltage compensation unit are also likely to consume energy, and are unfavorable for environmental protection. Moreover, a compensation power supply is respectively arranged in the first super capacitor voltage compensation unit and the second super capacitor voltage compensation unit, and the two compensation power supplies are simultaneously arranged on one board, so that a large amount of space can be occupied, and the whole compensation circuit is large in size and does not meet the small-size requirement of an integrated chip.
Disclosure of Invention
The invention provides a charge-discharge circuit with an intelligent control function based on ad sampling, which solves the problem of high energy consumption caused by mutual power supply of a first super capacitor voltage compensation unit and a second super capacitor voltage compensation unit in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a charge-discharge circuit with an ad sampling-based intelligent control function, comprising: a charge-discharge unit, comprising: the power supply comprises a charging power supply module, a super capacitor and a switch control circuit module, wherein the input end of the charging power supply module is connected to an input power supply, the output end of the charging power supply module is connected to the positive electrode of the super capacitor, the negative electrode of the super capacitor is connected to the input end of the switch control circuit module, and the output end of the switch control circuit module is connected to a load; a monitoring unit, comprising: the device comprises an MCU module, a first sampling module, a second sampling module, a first isolation driving module, a second isolation driving module and a monitoring power module, wherein the monitoring power module is used for supplying power to the MCU module, the first isolation driving module and the second isolation driving module; the input end of the second sampling module is connected to the node of the super capacitor and the switch control circuit module so as to acquire the output voltage value of the super capacitor and sample the output voltage value to form an output voltage sampling signal, and the output end of the second sampling module is connected to the second input end of the MCU module; the control input end of the first isolation driving module is connected to the first output end of the MCU module, and the control output end of the first isolation driving module is connected to the control end of the charging power supply module; the control input end of the second isolation driving module is connected to the second output end of the MCU module, and the control output end of the second isolation driving module is connected to the control end of the switch control circuit module; the MCU module judges whether an input voltage sampling signal is larger than a charging threshold value, controls the charging power supply module to stop working through the first isolation driving module when the input voltage sampling signal is larger than the charging threshold value, judges whether an output voltage sampling signal is larger than a discharging threshold value, and controls the input end and the output end of the switch control circuit module to be disconnected through the second isolation driving module when the output voltage sampling signal is larger than the discharging threshold value.
Preferably, the switch control circuit module includes: the regulation end of the 555 timer is used for receiving an external control signal so as to output a square wave voltage signal when the external control signal is high; outputting a direct current voltage signal when the external control signal is low; the output end of the 555 timer is connected to the input end of the charge pump assembly, so that when the square wave voltage signal is input to the input end of the charge pump assembly, the pressure difference between the high output end and the low output end of the charge pump assembly is a constant value larger than zero; when the input end of the charge pump component inputs a direct-current voltage signal, the pressure difference between the high output end and the low output end of the charge pump component is zero; and the control end of the switch component is connected with the high output end of the charge pump component, the input end of the switch component is used for being connected to a power supply, and the output end of the switch component is used for being connected to a load and connected with the low output end of the charge pump component.
Preferably, the switch component comprises a first MOS tube Q1 and a second MOS tube Q2, wherein the drain electrode of the first MOS tube Q1 is connected to the drain electrode of the second MOS tube Q2, and the node between the drain electrodes of the first MOS tube Q1 and the second MOS tube Q2 is the input end of the switch component; the source electrode of the first MOS tube Q1 is connected to the source electrode of the second MOS tube Q2, and the node between the source electrodes of the first MOS tube Q1 and the second MOS tube Q2 is the output end of the switch component; the grid electrode of the first MOS tube Q1 is connected to the source electrode of the second MOS tube Q2, and the nodes of the grid electrodes of the first MOS tube Q1 and the second MOS tube Q2 are control ends of the switch components.
Preferably, the switch assembly further includes a protection diode D6, an anode of the protection diode D6 is connected to a drain of the first MOS transistor Q1, and a cathode of the protection diode D6 is connected to a source of the first MOS transistor Q1.
Preferably, the VCC terminal and the R terminal of the 555 timer are configured to be connected to a starting power supply, the DIS terminal of the 555 timer is connected to a high level, the CVolt terminal, the TRIG terminal and the TUR terminal of the 555 timer are configured to be grounded, the GND terminal of the 555 timer is a 555 timer control terminal, the 555 timer control terminal receives an external control signal through a triode Q4, the 555 timer control terminal is connected to a collector of the triode Q4, the base of the triode Q4 is configured to receive an external control signal, and an emitter of the triode Q4 is grounded.
Preferably, the VCC terminal and the R terminal of the 555 timer are both connected to a 15v start power supply through a resistor NC3, the base of the transistor Q4 is connected to receive an external control signal through a resistor R18, the base of the transistor Q4 is grounded through a resistor R19, the TRIG terminal and the TUR terminal of the 555 timer are grounded through a capacitor C27, the DIS terminal of the 555 timer is connected to one terminal of a resistor R21, the other terminal of the resistor R21 is connected to the positive terminal of the capacitor C27, the DIS terminal of the 555 timer is connected to the VCC terminal of the 555 timer through a resistor R2, and the CVolt terminal of the 555 timer is grounded through a capacitor C26.
Preferably, the charge pump assembly includes a capacitor C28, a first diode group, a second diode group, a resistor R22, a resistor R23, and a resistor R24, where the positive electrode of the capacitor C28 is an input end of the charge pump assembly, the negative electrode of the capacitor C28 is connected to the positive electrodes of the first diode group and the second diode group, the negative electrode of the first diode group is connected to the resistor R22, the resistor R22 is connected to the resistor R23, the node between the resistor R22 and the resistor R23 is a high output end of the charge pump assembly, the positive electrode of the second diode group is connected to one end of the resistor R24, and the other end of the resistor R24 is a low output end of the charge pump assembly.
Preferably, the first diode group and the second diode group each include a diode D4 and a diode D5, the anode of the diode D4 is connected to the anode of the diode D5, the node between the anode of the diode D4 and the anode of the diode D5 is the positive electrode of the first diode group or the positive electrode of the second diode group, the cathode of the diode D4 is connected to the cathode of the diode D5, and the node between the cathode of the diode D4 and the cathode of the diode D5 is the negative electrode of the first diode group or the negative electrode of the second diode group.
Preferably, the device further comprises a heat dissipation shell, the charging and discharging unit and the monitoring unit are arranged in the heat dissipation shell, and the first MOS tube Q1 and the second MOS tube Q2 are tightly attached to the inner wall of the heat dissipation shell.
Compared with the prior art, the invention has the following beneficial effects:
1) The problem of high energy consumption caused by the fact that the first super capacitor voltage compensation unit and the second super capacitor voltage compensation unit in the prior art can supply power to each other is avoided, the energy consumption during the super capacitor protection is reduced, environmental protection and energy saving are facilitated, and unnecessary energy consumption is avoided;
2) The first super capacitor voltage compensation unit and the second super capacitor voltage compensation unit in the prior art are prevented from being respectively provided with a power supply, the occupied area during integration is reduced, and the volume of a formed chip is reduced.
Drawings
FIG. 1 is a circuit block diagram of a charge-discharge circuit with an intelligent control function based on ad sampling;
fig. 2 is a circuit diagram of the switch control circuit module in fig. 1.
Detailed Description
As shown in fig. 1, this embodiment proposes a charge-discharge circuit with an intelligent control function based on ad sampling, including: a charge-discharge unit, comprising: the power supply comprises a charging power supply module, a super capacitor and a switch control circuit module, wherein the input end of the charging power supply module is connected to an input power supply, the output end of the charging power supply module is connected to the positive electrode of the super capacitor, the negative electrode of the super capacitor is connected to the input end of the switch control circuit module, and the output end of the switch control circuit module is connected to a load; a monitoring unit, comprising: the device comprises an MCU module, a first sampling module, a second sampling module, a first isolation driving module, a second isolation driving module and a monitoring power module, wherein the monitoring power module is used for supplying power to the MCU module, the first isolation driving module and the second isolation driving module; the input end of the second sampling module is connected to the node of the super capacitor and the switch control circuit module so as to acquire the output voltage value of the super capacitor and sample the output voltage value to form an output voltage sampling signal, and the output end of the second sampling module is connected to the second input end of the MCU module; the control input end of the first isolation driving module is connected to the first output end of the MCU module, and the control output end of the first isolation driving module is connected to the control end of the charging power supply module; the control input end of the second isolation driving module is connected to the second output end of the MCU module, and the control output end of the second isolation driving module is connected to the control end of the switch control circuit module; the MCU module judges whether an input voltage sampling signal is larger than a charging threshold value, controls the charging power supply module to stop working through the first isolation driving module when the input voltage sampling signal is larger than the charging threshold value, judges whether an output voltage sampling signal is larger than a discharging threshold value, and controls the input end and the output end of the switch control circuit module to be disconnected through the second isolation driving module when the output voltage sampling signal is larger than the discharging threshold value.
The first sampling module and the second sampling module respectively convert the input voltage and the super capacitor voltage into the voltage which can be born by the AD sampling input pin of the MCU module by adopting a voltage conditioning circuit.
The MCU module reads sampling signals of the first sampling module and the second sampling module in real time, and the MCU module compares the sampling voltage with a set threshold in real time. And outputting different control signals to the first isolation driving module and the second isolation driving module through the comparison result.
The first isolation driving module controls the enabling end of the charging power supply module and controls the charging power supply module to be started, so that intelligent charging control is realized; the second isolation driving module controls the switch control circuit module to drive the switch assembly to be conducted, and output voltage compensation and intelligent discharge control are achieved.
The second isolation driving module controls the switch assembly in the switch control circuit module to be turned off. Meanwhile, according to the comparison result of the second comparison circuit, when the super capacitor is over-discharged, the second isolation driving module controls the switch assembly in the switch control circuit to be disconnected, so that the purposes of preventing the super capacitor from being over-discharged and protecting the super capacitor are achieved, and meanwhile, the charging power supply module is started through the first isolation driving module to charge the super capacitor. When the super capacitor is required to be charged or is full of the super capacitor, the MCU module outputs a control signal to control the charging power supply module to be turned on or off through the isolation driving circuit, and the super capacitor is turned on or stopped to be charged, so that the purpose of intelligent charging control is achieved. The isolating drive circuit core device consists of a magnetic coupler or an optical coupler chip so as to isolate interference and increase the reliability of the system.
When the super capacitor is full, the MCU module stops the charging power supply module through the first isolation driving module, so that the super capacitor is not charged.
As shown in fig. 2, the switch control circuit module includes: the regulation end of the 555 timer is used for receiving an external control signal so as to output a square wave voltage signal when the external control signal is high; outputting a direct current voltage signal when the external control signal is low; the output end of the 555 timer is connected to the input end of the charge pump assembly, so that when the square wave voltage signal is input to the input end of the charge pump assembly, the pressure difference between the high output end and the low output end of the charge pump assembly is a constant value larger than zero; when the input end of the charge pump component inputs a direct-current voltage signal, the pressure difference between the high output end and the low output end of the charge pump component is zero; and the control end of the switch component is connected with the high output end of the charge pump component, the input end of the switch component is used for being connected to a power supply, and the output end of the switch component is used for being connected to a load and connected with the low output end of the charge pump component. 1) The 555 timer is used for replacing a general controller, and the 555 timer has low power consumption, so that the switch control circuit has low energy consumption when in use, and is beneficial to energy conservation and environmental protection; 2) Through setting up the charge pump subassembly, realized making switch assembly keep closed state when 555 timer output is square wave signal, guarantee power supply and last for the load power supply, cut off power supply and load when the output direct current, realize control, and the use of charge pump subassembly can reduce the power consumption and simultaneously interference killing feature is strong, guarantees the orderly going on of control work.
As shown in fig. 2, the switch component includes a first MOS transistor Q1 and a second MOS transistor Q2, a drain electrode of the first MOS transistor Q1 is connected to a drain electrode of the second MOS transistor Q2, and a node between the drain electrodes of the first MOS transistor Q1 and the second MOS transistor Q2 is an input end of the switch component; the source electrode of the first MOS tube Q1 is connected to the source electrode of the second MOS tube Q2, and the node between the source electrodes of the first MOS tube Q1 and the second MOS tube Q2 is the output end of the switch component; the grid electrode of the first MOS tube Q1 is connected to the source electrode of the second MOS tube Q2, and the nodes of the grid electrodes of the first MOS tube Q1 and the second MOS tube Q2 are control ends of the switch components. Through setting up first MOS pipe Q1 and second MOS pipe Q2, realized when first MOS pipe Q1 and second MOS pipe Q2 close, first MOS pipe Q1 and second MOS pipe Q2 shunt each other for the electric current that first MOS pipe Q1 and second MOS pipe Q2 respectively passed through reduces, and then has reduced the power of first MOS pipe Q1 and second MOS pipe Q2 after closing, and then has solved the problem that leads to first MOS pipe Q1 and second MOS pipe Q2 in the switch module to damage easily because of power supply circuit is too big among the prior art, has prolonged switch module's life, has increased market competition.
In order to protect the first MOS transistor and the second MOS transistor, the switch assembly further includes a protection diode D6, an anode of the protection diode D6 is connected to a drain of the first MOS transistor Q1, and a cathode of the protection diode D6 is connected to a source of the first MOS transistor Q1.
In order to realize that the 555 timer outputs square wave signals when the external control signal is input to be at a high level, the 555 timer outputs direct current signals when the external control signal is input to be at a low level, the VCC end and the R end of the 555 timer are used for being connected to a starting power supply, the DIS end of the 555 timer is connected to be at a high level, the CVolt end, the TRIG end and the TUR end of the 555 timer are used for being grounded, the GND end of the 555 timer is a 555 timer regulating end, the 555 timer regulating end receives the external control signal through a triode Q4, the 555 timer regulating end is connected with a collector of the triode Q4, the base of the triode Q4 is used for receiving the external control signal, and an emitter of the triode Q4 is grounded.
In order to achieve the purpose of achieving the requirements of each end of the 555 timer by only setting a starting power supply 15v and a ground, the VCC end and the R end of the 555 timer are connected to the 15v starting power supply through a resistor NC3, the base of a triode Q4 is connected to receive an external control signal through a resistor R18, the base of the triode Q4 is grounded through a resistor R19, the TRIG end and the TUR end of the 555 timer are grounded through a capacitor C27, the DIS end of the 555 timer is connected to one end of the resistor R21, the other end of the resistor R21 is connected to the positive electrode of the capacitor C27, the DIS end of the 555 timer is connected to the VCC end of the 555 timer through a resistor R2, and the CVolt end of the 555 timer is grounded through a capacitor C26.
For the simple design and reliable operation of the charge assembly, the charge pump assembly includes a capacitor C28, a first diode group, a second diode group, a resistor R22, a resistor R23, a resistor R24, a capacitor C29, and a capacitor C30, wherein the positive electrode of the capacitor C28 is an input end of the charge pump assembly, the negative electrode of the capacitor C28 is connected to the positive electrodes of the first diode group and the positive electrode of the second diode group, the negative electrode of the first diode group is connected to the resistor R22, the resistor R22 is connected to the resistor R23, the node between the resistor R22 and the resistor R23 is a high output end of the charge pump assembly, the positive electrode of the second diode group is connected to one end of the resistor R24, the other end of the resistor R24 is a low output end of the charge pump assembly, the negative electrode of the capacitor C30 is grounded, the positive electrode of the capacitor C30 and the negative electrode of the capacitor C29 are both connected to the negative electrode of the second diode group, and the positive electrode of the capacitor C29 is connected to the negative electrode of the first diode group.
For the simple design and reliable operation of the first diode group and the second diode group, the first diode group and the second diode group each comprise a diode D4 and a diode D5, the anode of the diode D4 is connected to the anode of the diode D5, the node between the anode of the diode D4 and the anode of the diode D5 is the positive pole of the first diode group or the positive pole of the second diode group, the cathode of the diode D4 is connected to the cathode of the diode D5, and the node between the cathode of the diode D4 and the cathode of the diode D5 is the negative pole of the first diode group or the negative pole of the second diode group.
The 555 timer circuit is connected into a square wave pulse generator circuit, when an external control signal is in a high level, the high level is divided by R9 and R10 and then is added to the base electrode of the Q4 pipe, the Q4 is conducted, the foot 1 of the 555 timer circuit is grounded, the pulse generator starts to work, and the foot 3 outputs a square wave pulse signal with the amplitude of 15V. The capacitor C28, the first diode group, the second diode group, the resistor R22, the resistor R23, the resistor R24, the capacitor C29, and the capacitor C30 constitute a "charge pump circuit". C28 acts as a "charge pump" and dc blocking. When the output of the pin 3 is positive pulse, the pins 3 are connected in series through V5 to charge C5 and C4 after being blocked by C6, when the pin 3 of the 555 timer is at zero level, the pin 30 is charged by the second diode group, the voltage of the pin 3 and the voltage on the pin 28 are connected in series to charge C29 and C30 when the next positive pulse arrives, the operation is repeated, the pins 30 and C29 are gradually charged, the voltage is gradually increased, and the voltage reaches the stable state, uc30=uc29=Vcc (uc30 is the voltage difference between two ends of the C30, and uc29 is the voltage difference between two ends of the C29). And finally, a direct-current voltage of about 15V suspended between the poles G, S of the MOS tube is obtained on the C29, and the power switch assembly is driven to be conducted through the R22, so that continuous power supply is realized.
When the control signal is at a low level, the pin 1 of the 555 timer is not grounded, the control circuit formed in the 555 timer stops working, the 555 timer outputs 15V direct current, because the C28 capacitor stops direct current, the circuit is equal to open circuit, the later-stage circuit does not work, and the suspended voltage of 15V is not generated, and the switch assembly is not conducted.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (9)
1. A charge-discharge circuit with an intelligent control function based on ad sampling, comprising:
a charge-discharge unit, comprising: the power supply comprises a charging power supply module, a super capacitor and a switch control circuit module, wherein the input end of the charging power supply module is connected to an input power supply, the output end of the charging power supply module is connected to the positive electrode of the super capacitor, the negative electrode of the super capacitor is connected to the input end of the switch control circuit module, and the output end of the switch control circuit module is connected to a load;
a monitoring unit, comprising: the device comprises an MCU module, a first sampling module, a second sampling module, a first isolation driving module, a second isolation driving module and a monitoring power module, wherein the monitoring power module is used for supplying power to the MCU module, the first isolation driving module and the second isolation driving module; the input end of the second sampling module is connected to the node of the super capacitor and the switch control circuit module so as to acquire the output voltage value of the super capacitor and sample the output voltage value to form an output voltage sampling signal, and the output end of the second sampling module is connected to the second input end of the MCU module; the control input end of the first isolation driving module is connected to the first output end of the MCU module, and the control output end of the first isolation driving module is connected to the control end of the charging power supply module; the control input end of the second isolation driving module is connected to the second output end of the MCU module, and the control output end of the second isolation driving module is connected to the control end of the switch control circuit module;
the MCU module judges whether an input voltage sampling signal is larger than a charging threshold value, controls the charging power supply module to stop working through the first isolation driving module when the input voltage sampling signal is larger than the charging threshold value, judges whether an output voltage sampling signal is larger than a discharging threshold value, and controls the input end and the output end of the switch control circuit module to be disconnected through the second isolation driving module when the output voltage sampling signal is larger than the discharging threshold value.
2. The charge-discharge circuit with ad sampling-based intelligent control function according to claim 1, wherein the switch control circuit module comprises:
the regulation end of the 555 timer is used for receiving an external control signal so as to output a square wave voltage signal when the external control signal is high; outputting a direct current voltage signal when the external control signal is low;
the output end of the 555 timer is connected to the input end of the charge pump assembly, so that when the square wave voltage signal is input to the input end of the charge pump assembly, the pressure difference between the high output end and the low output end of the charge pump assembly is a constant value larger than zero; when the input end of the charge pump component inputs a direct-current voltage signal, the pressure difference between the high output end and the low output end of the charge pump component is zero; and
and the control end of the switch component is connected with the high output end of the charge pump component, the input end of the switch component is used for being connected to a power supply, and the output end of the switch component is used for being connected to a load and connected with the low output end of the charge pump component.
3. The charge-discharge circuit with the intelligent control function based on ad sampling according to claim 2, wherein the switch component comprises a first MOS tube Q1 and a second MOS tube Q2, the drain electrode of the first MOS tube Q1 is connected to the drain electrode of the second MOS tube Q2, and the nodes of the drain electrodes of the first MOS tube Q1 and the second MOS tube Q2 are the input ends of the switch component; the source electrode of the first MOS tube Q1 is connected to the source electrode of the second MOS tube Q2, and the node between the source electrodes of the first MOS tube Q1 and the second MOS tube Q2 is the output end of the switch component; the grid electrode of the first MOS tube Q1 is connected to the source electrode of the second MOS tube Q2, and the nodes of the grid electrodes of the first MOS tube Q1 and the second MOS tube Q2 are control ends of the switch components.
4. The charge-discharge circuit with intelligent control function based on ad sampling according to claim 3, wherein the switch assembly further comprises a protection diode D6, an anode of the protection diode D6 is connected to a drain of the first MOS transistor Q1, and a cathode of the protection diode D6 is connected to a source of the first MOS transistor Q1.
5. The charge-discharge circuit with the ad sampling-based intelligent control function according to claim 2, wherein the VCC terminal and the R terminal of the 555 timer are used for being connected to a starting power supply, the DIS terminal of the 555 timer is connected to a high level, the CVolt terminal, the TRIG terminal and the TUR terminal of the 555 timer are used for being grounded, the GND terminal of the 555 timer is a 555 timer regulating terminal, the 555 timer regulating terminal receives an external control signal through a triode Q4, the 555 timer regulating terminal is connected with a collector of the triode Q4, the base of the triode Q4 is used for receiving the external control signal, and an emitter of the triode Q4 is grounded.
6. The charge-discharge circuit with ad sampling-based intelligent control function according to claim 5, wherein the VCC terminal and the R terminal of the 555 timer are both connected to a 15v start power supply through a resistor NC3, the base of the transistor Q4 is connected to receive an external control signal through a resistor R18, the base of the transistor Q4 is grounded through a resistor R19, the TRIG terminal and the TUR terminal of the 555 timer are grounded through a capacitor C27, the DIS terminal of the 555 timer is connected to one terminal of a resistor R21, the other terminal of the resistor R21 is connected to the positive terminal of the capacitor C27, the DIS terminal of the 555 timer is connected to the VCC terminal of the 555 timer through a resistor R2, and the CVolt terminal of the 555 timer is grounded through a capacitor C26.
7. The charge-discharge circuit with the ad sampling-based intelligent control function according to claim 2, wherein the charge pump assembly comprises a capacitor C28, a first diode group, a second diode group, a resistor R22, a resistor R23 and a resistor R24, wherein the positive electrode of the capacitor C28 is an input end of the charge pump assembly, the negative electrode of the capacitor C28 is connected to the positive electrodes of the first diode group and the positive electrode of the second diode group, the negative electrode of the first diode group is connected to the resistor R22, the resistor R22 is connected to the resistor R23, the node between the resistor R22 and the resistor R23 is a high output end of the charge pump assembly, the positive electrode of the second diode group is connected to one end of the resistor R24, and the other end of the resistor R24 is a low output end of the charge pump assembly.
8. The charge-discharge circuit with an ad sampling-based intelligent control function according to claim 7, wherein the first diode group and the second diode group each comprise a diode D4 and a diode D5, the anode of the diode D4 is connected to the anode of the diode D5, the node between the anode of the diode D4 and the anode of the diode D5 is the anode of the first diode group or the anode of the second diode group, the cathode of the diode D4 is connected to the cathode of the diode D5, and the node between the cathode of the diode D4 and the cathode of the diode D5 is the cathode of the first diode group or the cathode of the second diode group.
9. The charge-discharge circuit with the intelligent control function based on ad sampling according to claim 8, further comprising a heat dissipation shell, wherein the charge-discharge unit and the monitoring unit are arranged in the heat dissipation shell, and the first MOS tube Q1 and the second MOS tube Q2 are tightly attached to the inner wall of the heat dissipation shell.
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| CN108054808B (en) * | 2018-01-22 | 2024-05-07 | 北京合众汇能科技有限公司 | Super capacitor module ultra-long time pressure maintaining circuit |
| CN108344937B (en) * | 2018-02-11 | 2024-07-02 | 广东电网有限责任公司汕头供电局 | Controllable testing device of power unit |
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