CN219960399U - Circuit for controlling bus voltage supply module - Google Patents
Circuit for controlling bus voltage supply module Download PDFInfo
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- CN219960399U CN219960399U CN202321100487.1U CN202321100487U CN219960399U CN 219960399 U CN219960399 U CN 219960399U CN 202321100487 U CN202321100487 U CN 202321100487U CN 219960399 U CN219960399 U CN 219960399U
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- 239000003990 capacitor Substances 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims abstract description 5
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- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 101100029585 Arabidopsis thaliana PHB3 gene Proteins 0.000 description 5
- 101100218322 Arabidopsis thaliana ATXR3 gene Proteins 0.000 description 4
- 102100032742 Histone-lysine N-methyltransferase SETD2 Human genes 0.000 description 4
- 101100149326 Homo sapiens SETD2 gene Proteins 0.000 description 4
- LZHSWRWIMQRTOP-UHFFFAOYSA-N N-(furan-2-ylmethyl)-3-[4-[methyl(propyl)amino]-6-(trifluoromethyl)pyrimidin-2-yl]sulfanylpropanamide Chemical compound CCCN(C)C1=NC(=NC(=C1)C(F)(F)F)SCCC(=O)NCC2=CC=CO2 LZHSWRWIMQRTOP-UHFFFAOYSA-N 0.000 description 4
- 101100533304 Plasmodium falciparum (isolate 3D7) SETVS gene Proteins 0.000 description 4
- 101150117538 Set2 gene Proteins 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model discloses a circuit for controlling a bus voltage supply module, which comprises a capacitor, a discharge resistor, a comparator, a triode, a relay and an optocoupler, wherein the capacitor is connected with the discharge resistor; the positive input end of the comparator is respectively connected with the bus voltage sampling signal and the CPU control signal, one end of the capacitor is connected with the positive input end of the comparator, the other end of the capacitor is connected with GND, the discharging resistor is connected with the capacitor in parallel, the reverse input end of the comparator is connected with the reference voltage, the signal output end of the comparator is connected with the B pole of the triode, the C pole of the triode is connected with one end of the coil of the relay, the E pole of the triode is connected with GND, the other end of the coil of the relay is connected with the power supply voltage, the positive pole of the transmitting end of the optocoupler is connected with the power supply voltage, and the negative pole of the transmitting end of the optocoupler is connected with the other end of the coil of the relay. The circuit for controlling the bus voltage supply module has the advantages of simple and reasonable circuit structural design, stable working mode, better protection of the module and prolonged service life of the module.
Description
Technical Field
The utility model relates to the technical field of electronic power, in particular to a circuit for controlling a bus voltage supply module.
Background
The servo controller is an electronic device used for controlling the motion and the position of the servo motor, and has the functions of position control, speed control and torque control in industrial production.
The high-voltage power supply of the servo controller module needs to be delayed in power supply so as to prevent overshoot of the bus high-voltage power supply from being transmitted to the module during starting. The prior art generally only uses the time of relay actuation to delay, and in many cases, the delay effect is not obvious, and the high voltage control of the module is not carried out later, so that the module cannot be effectively protected, and the service life of the module is low.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a circuit for controlling a bus voltage supply module, which has simple and reasonable circuit structure design, stable working mode, better protection of the module and prolonged service life of the module.
The utility model adopts the following technical scheme:
a circuit for controlling a bus voltage supply module comprises a capacitor, a discharge resistor, a comparator, a triode, a relay and an optocoupler; the positive phase input end of the comparator is respectively connected with a bus voltage sampling signal and a CPU control signal, one end of the capacitor is connected with the positive phase input end of the comparator, the other end of the capacitor is connected with GND, the discharging resistor is connected with the capacitor in parallel, the reverse phase input end of the comparator is connected with a reference voltage, the signal output end of the comparator is connected with the B pole of the triode, the C pole of the triode is connected with one end of the coil of the relay, the E pole of the triode is connected with GND, the other end of the coil of the relay is connected with a power supply voltage, the positive pole of the transmitting end of the optocoupler is connected with the power supply voltage, and the negative pole of the transmitting end of the optocoupler is connected with the other end of the coil of the relay.
Further, the circuit also comprises a freewheel diode, and the freewheel diode is connected with the coil of the relay in parallel.
Further, the C pole of the receiving end of the optocoupler outputs a feedback signal, and the E pole of the receiving end of the optocoupler is connected with the DGND.
Further, the circuit further comprises a first resistor, a second resistor and a third resistor, one end of the first resistor is connected with the normal phase input end of the comparator, the other end of the first resistor is connected with the signal output end of the comparator, one end of the second resistor is connected with the power supply voltage, the other end of the second resistor is connected with the signal output end of the comparator, one end of the third resistor is connected with the signal output end of the comparator, and the other end of the third resistor is connected with the B pole of the triode.
Further, the circuit further comprises a fourth resistor and a fifth resistor, one end of the fourth resistor is connected with the power supply voltage, the other end of the fourth resistor is connected with the positive electrode of the transmitting end of the optocoupler, one end of the fifth resistor is connected with the power supply voltage, and the other end of the fifth resistor is connected with the other end of the coil of the relay.
Compared with the prior art, the utility model has the beneficial effects that:
the circuit for controlling the bus voltage supply module provided by the utility model has the advantages of simple and reasonable circuit structure design, stable working mode, better protection of the module and prolonged service life of the module.
Drawings
Fig. 1 is a schematic diagram of a circuit for controlling a bus voltage supply module according to an embodiment of the present utility model.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
Referring to fig. 1, an embodiment of the present utility model provides a circuit for controlling a bus voltage supply module. The circuit for controlling the bus voltage supply module comprises a capacitor C30, a discharging resistor R30, a comparator U30, a triode Q30, a relay KA1 and an optocoupler U31; the positive input end of the comparator U30 is respectively connected with the bus voltage sampling signal SET2 and the CPU control signal EER2, one end of the capacitor C30 is connected with the positive input end of the comparator U30, the other end of the capacitor C30 is connected with GND, the discharging resistor R30 is connected with the capacitor C30 in parallel, the reverse input end of the comparator U30 is connected with the reference voltage VREF, the signal output end of the comparator U30 is connected with the B pole of the triode Q30, the C pole of the triode Q30 is connected with one end of the coil of the relay KA1, the E pole of the triode Q30 is connected with GND, the other end of the coil of the relay KA1 is connected with the power supply voltage VCC, the positive pole of the transmitting end of the optocoupler U31 is connected with the power supply voltage VCC, and the negative pole of the transmitting end of the optocoupler U31 is connected with the other end of the coil of the relay KA 1.
In the circuit for controlling the bus voltage supply module according to the embodiment of the utility model, a freewheeling diode D30 is further included, and the freewheeling diode D30 is connected in parallel with the coil of the relay KA 1.
In the circuit for controlling the bus voltage supply module according to the embodiment of the present utility model, the C-pole of the receiving end of the optocoupler U31 outputs the feedback signal EER3, and the E-pole of the receiving end of the optocoupler U31 is connected to DGND.
The circuit for controlling the bus voltage supply module in the embodiment of the utility model further comprises a first resistor R31, a second resistor R33 and a third resistor R34, wherein one end of the first resistor R31 is connected with the non-inverting input end of the comparator U30, the other end of the first resistor R31 is connected with the signal output end of the comparator U30, one end of the second resistor R33 is connected with the power supply voltage VCC, the other end of the second resistor R33 is connected with the signal output end of the comparator U30, one end of the third resistor R34 is connected with the signal output end of the comparator U30, and the other end of the third resistor R34 is connected with the pole B of the triode Q30.
The circuit for controlling the bus voltage supply module according to the embodiment of the utility model further includes a fourth resistor R35 and a fifth resistor R36, wherein one end of the fourth resistor R35 is connected with the power supply voltage VCC, the other end is connected with the positive electrode of the transmitting end of the optocoupler U31, one end of the fifth resistor R36 is connected with the power supply voltage VCC, and the other end is connected with the other end of the coil of the relay KA 1.
The working principle of the embodiment is as follows:
the SET2 signal is a sampling signal of bus voltage, when the bus voltage rises to a certain value, the SET2 is larger than the reference voltage VREF, the signal output end (namely the pin 2) of the comparator U30 outputs high level to enable the triode Q30 to work and conduct, the triode Q30 works and conducts to enable the contact of the relay KA1 to be attracted, and then the module is powered by high voltage electricity;
EER2 is a control signal of a CPU, when EER2 outputs a low level (high impedance in a normal working state) and the triode Q30 stops working under the condition that the EER2 outputs a low level when certain special reasons (such as the condition that certain alarm events are triggered and high-voltage power supply is required to be disconnected) are met, the contact of a relay KA1 is disconnected, and the high-voltage power supply of a module is stopped;
EER3 is a feedback signal of the working state of the relay KA1, when the contact of the relay KA1 is attracted, EER3 outputs a low level, when the relay KA1 stops working, EER3 outputs high impedance, and the CPU receives the state of EER3 to make corresponding working logic;
the capacitor C30 has the function that the SET2 firstly charges the capacitor C30 when the power is started, and transmits a voltage signal to the positive input end of the comparator U30 after the charging is finished, so that the actuation of the relay is effectively delayed, and the overshoot of the bus high voltage power is prevented from being transmitted to the module when the power is started;
resistor R30 is the discharge resistance of capacitor C30; diode D30 is a flywheel diode of the coil of relay KA 1.
The beneficial effects of this embodiment are:
according to the working principle, the circuit for controlling the bus voltage supply module is simple and reasonable in circuit structural design, stable in working mode, better in protection of the module and long in service life of the module.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.
Claims (5)
1. A circuit for controlling a bus voltage supply module, characterized by: the device comprises a capacitor, a discharge resistor, a comparator, a triode, a relay and an optocoupler; the positive phase input end of the comparator is respectively connected with a bus voltage sampling signal and a CPU control signal, one end of the capacitor is connected with the positive phase input end of the comparator, the other end of the capacitor is connected with GND, the discharging resistor is connected with the capacitor in parallel, the reverse phase input end of the comparator is connected with a reference voltage, the signal output end of the comparator is connected with the B pole of the triode, the C pole of the triode is connected with one end of the coil of the relay, the E pole of the triode is connected with GND, the other end of the coil of the relay is connected with a power supply voltage, the positive pole of the transmitting end of the optocoupler is connected with the power supply voltage, and the negative pole of the transmitting end of the optocoupler is connected with the other end of the coil of the relay.
2. The circuit for controlling a bus voltage supply module of claim 1, wherein: the circuit also comprises a freewheel diode, and the freewheel diode is connected with the coil of the relay in parallel.
3. The circuit for controlling a bus voltage supply module of claim 1, wherein: and a C electrode of a receiving end of the optical coupler outputs a feedback signal, and an E electrode of the receiving end of the optical coupler is connected with DGND.
4. The circuit for controlling a bus voltage supply module of claim 1, wherein: the circuit further comprises a first resistor, a second resistor and a third resistor, one end of the first resistor is connected with the normal phase input end of the comparator, the other end of the first resistor is connected with the signal output end of the comparator, one end of the second resistor is connected with the power supply voltage, the other end of the second resistor is connected with the signal output end of the comparator, one end of the third resistor is connected with the signal output end of the comparator, and the other end of the third resistor is connected with the B pole of the triode.
5. The circuit for controlling a bus voltage supply module of claim 1, wherein: the circuit also comprises a fourth resistor and a fifth resistor, wherein one end of the fourth resistor is connected with the power supply voltage, the other end of the fourth resistor is connected with the positive electrode of the transmitting end of the optocoupler, one end of the fifth resistor is connected with the power supply voltage, and the other end of the fifth resistor is connected with the other end of the coil of the relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321100487.1U CN219960399U (en) | 2023-05-09 | 2023-05-09 | Circuit for controlling bus voltage supply module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321100487.1U CN219960399U (en) | 2023-05-09 | 2023-05-09 | Circuit for controlling bus voltage supply module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219960399U true CN219960399U (en) | 2023-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321100487.1U Active CN219960399U (en) | 2023-05-09 | 2023-05-09 | Circuit for controlling bus voltage supply module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219960399U (en) |
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2023
- 2023-05-09 CN CN202321100487.1U patent/CN219960399U/en active Active
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