CN217954950U - Scram control circuit - Google Patents

Scram control circuit Download PDF

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Publication number
CN217954950U
CN217954950U CN202222241602.9U CN202222241602U CN217954950U CN 217954950 U CN217954950 U CN 217954950U CN 202222241602 U CN202222241602 U CN 202222241602U CN 217954950 U CN217954950 U CN 217954950U
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circuit
resistor
diode
control circuit
emergency stop
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CN202222241602.9U
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Chinese (zh)
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田军
刘耀俊
朱辉煌
方俊骅
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Huiling Tech Robotic Co ltd
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Huiling Tech Robotic Co ltd
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Abstract

The utility model discloses an emergency stop control circuit, which comprises a soft start circuit, wherein the input end of the soft start circuit is connected with an emergency stop button, and the output end of the soft start circuit is connected with an equipment driving circuit; the sampling circuit is connected with the soft start circuit; the main control circuit is connected with the input end of the switch circuit; and the input end of the switching circuit is connected with the emergency stop button, and the output end of the switching circuit is connected with the soft start circuit and the main control circuit. After the emergency stop button is closed, the soft start circuit is charged, and after a certain condition is reached, the soft start circuit supplies power for the equipment driving circuit, so that the equipment is started, the equipment is started slowly, the service life of the equipment is prolonged, and the equipment is effectively protected.

Description

Scram control circuit
Technical Field
The utility model relates to an equipment control technical field especially relates to an emergency stop control circuit.
Background
In the control of the equipment, an emergency stop button is often arranged, and when an emergency occurs, the emergency stop button is disconnected to cut off the power of the equipment in work so as to protect the equipment.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide an emergency stop control circuit in order to solve the above problems.
An emergency stop control circuit comprising:
the input end of the soft start circuit is connected with the emergency stop button, and the output end of the soft start circuit is connected with the equipment driving circuit and used for charging when the emergency stop button is closed;
the sampling circuit is connected with the soft start circuit and used for acquiring a first voltage value after the soft start circuit is charged and transmitting the first voltage value to the main control circuit;
the main control circuit is connected with the input end of the switch circuit and is used for acquiring the first voltage value, and when the first voltage value is larger than a first preset value, the main control circuit outputs a low level signal to the switch circuit;
the input end of the switch circuit is connected with the emergency stop button, and the output end of the switch circuit is connected with the soft start circuit and the main control circuit, and the switch circuit is used for receiving the low level signal and controlling the soft start circuit to supply power to the equipment driving circuit when the emergency stop button is closed; or when the emergency stop button is disconnected, the soft start circuit is controlled to stop supplying power to the equipment driving circuit and output a high level signal to the main control circuit.
In one embodiment, the emergency stop control circuit further includes:
the input end of the smashing starting circuit is connected with the emergency stop button, the output end of the smashing starting circuit is connected with the smashing circuit, and the smashing starting circuit is used for outputting a low level signal to the smashing circuit when the emergency stop button is closed and an accessed second voltage value reaches a second preset value;
and the output end of the smashing circuit is connected with the smashing coil and is used for receiving the low level signal and controlling the smashing coil to carry out the smashing action.
In one embodiment, the soft start circuit includes: the circuit comprises a first diode, a second diode, a fuse, an inductor and an MOS (metal oxide semiconductor) tube;
the anode of the first diode is connected with the first pin of the emergency stop button, and the cathode of the first diode is connected with one end of the fuse; the other end of the fuse is connected with the anode of the second diode, the cathode of the second diode is connected with one end of the inductor, and the other end of the inductor is connected with the drain electrode of the MOS tube and the input end of the sampling circuit; the grid of the MOS tube is connected with the output end of the switch circuit, and the source of the MOS tube is connected with the equipment driving circuit.
In one embodiment, the soft start circuit further comprises: the third diode, the first capacitor and the first resistor;
one end of the first capacitor is connected with the source electrode of the MOS tube, and the other end of the first capacitor is connected with the grid electrode of the MOS tube;
the first capacitor is connected with the first capacitor in parallel;
and the anode of the third diode is connected with the grid electrode of the MOS tube, and the cathode of the third diode is connected with the source electrode of the MOS tube.
In one embodiment, the switching circuit includes: the first photoelectric coupler, the second resistor and the first common cathode diode;
the collector of the first photoelectric coupler is connected with the soft start circuit, the emitter of the first photoelectric coupler is connected with the main control circuit, the anode of the first photoelectric coupler is connected with an external power supply, and the cathode of the first photoelectric coupler is connected with the external power supply and the main control circuit;
the collector of the second photoelectric coupler is connected with the emitter of the first photoelectric coupler, the emitter of the second photoelectric coupler is grounded, the anode of the second photoelectric coupler is connected with the first pin of the emergency stop button, and the cathode of the second photoelectric coupler is grounded;
the common end of the first common cathode diode is connected with the emitter of the first photoelectric coupler, the first anode of the first common cathode diode is connected with the main control circuit, and the second anode of the first common cathode diode is grounded;
one end of the second resistor is connected with the first anode of the first common cathode diode, and the other end of the second resistor is connected with the external power supply.
In one embodiment, the switching circuit further comprises: the fourth diode, the second capacitor, the third resistor and the fourth resistor;
the anode of the fourth diode is connected with the first pin of the emergency stop button, and the cathode of the fourth diode is connected with the anode of the second photoelectric coupler;
one end of the second capacitor is connected with the anode of the fourth diode, and the other end of the second capacitor is grounded;
one end of the third resistor is connected with the third resistor, and the other end of the third resistor is connected with a collector of the first photoelectric coupler;
the fourth resistor is connected in parallel with the third resistor.
In one embodiment, the sampling circuit includes: the first chip, the fifth resistor, the sixth resistor and the third capacitor;
the positive input end of the first chip is connected with the soft start circuit, the negative input end of the first chip is grounded, and the output end of the first chip is connected with the main control circuit and grounded;
one end of the fifth resistor is connected with the positive input end of the first chip, and the other end of the fifth resistor is grounded;
one end of the sixth resistor is connected with the positive input end of the first chip, and the other end of the sixth resistor is connected with an external power supply;
the third capacitor is connected with the fifth resistor in parallel.
In one embodiment, the smash initiating circuit 70 includes: the second chip, the third chip and the second common cathode diode;
the input end of the second chip is connected with the first anode of the second common-cathode diode, and the output end of the second chip is connected with the main control circuit;
the input end of the third chip is connected with the second anode of the second common-cathode diode, and the output end of the third chip is connected with the smashing circuit;
and the common end of the second common cathode diode is connected with the first pin of the emergency stop button.
In one embodiment, the smash starting circuit further includes: a seventh resistor, an eighth resistor and a ninth resistor;
one end of the seventh resistor is connected with the first pin of the emergency stop button, and the other end of the seventh resistor is connected with the common end of the second common cathode diode;
one end of the eighth resistor is connected with the common end of the second common cathode diode, and the other end of the eighth resistor is grounded;
and one end of the ninth resistor is connected with the input end of the third chip, and the other end of the ninth resistor is connected with an external power supply.
In one embodiment, the pounding circuit comprises: a first triode, a second triode, a third diode and a terminal;
the base electrode of the first triode is connected with the switch circuit, the collector electrode of the first triode is connected with the base electrode of the second triode, and the emitting electrode of the first triode is grounded;
the collector of the second triode is connected with the anode of the third diode, and the emitter of the second triode is grounded;
and the cathode of the third diode is connected with an external power supply and a first pin of the terminal, and the terminal is connected with the smashing coil.
Implement the embodiment of the utility model provides a, will have following beneficial effect:
when the equipment needs to be started, the emergency stop button is closed, the charging is carried out through the set soft start circuit, the acquired first voltage value of the soft start circuit is sent to the main control circuit through the sampling circuit, when the first voltage value is larger than a first preset value, the main control circuit controls to send a low level signal to the switching circuit, and at the moment, the switching circuit controls the soft start circuit to supply power to the equipment driving circuit; when the emergency stop button is disconnected, the switch circuit controls the soft start circuit to stop supplying power to the equipment driving circuit and outputs a high-level signal to the main control circuit. After the emergency stop button is closed, the soft start circuit is charged, and after a certain condition is reached, the soft start circuit supplies power for the equipment driving circuit, so that the equipment is started, the equipment is started slowly, the service life of the equipment is prolonged, and the equipment is effectively protected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
FIG. 1 is a block diagram of an embodiment of an emergency stop control circuit;
FIG. 2 is a block diagram of an emergency stop control circuit according to another embodiment;
FIG. 3 is a circuit diagram of the emergency stop button, soft start circuit 20 and switching circuit in one embodiment;
FIG. 4 is a circuit diagram of a sampling circuit in one embodiment;
FIG. 5 is a circuit diagram of a pounding initiation circuit in one embodiment;
FIG. 6 is a circuit diagram of a pounding circuit in an embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the control of the equipment, an emergency stop button is often arranged, and when an emergency occurs, the emergency stop button is disconnected to power off the equipment in work so as to protect the equipment. In order to solve the above technical problem, the present application provides an emergency stop control circuit, and fig. 1 is a block diagram of an emergency stop control circuit according to an embodiment. Referring to fig. 1, the scram control circuit includes: the soft start circuit 20, the sampling circuit 50, the main control circuit 40 and the switch circuit 30; the input end of the soft start circuit 20 is connected with the emergency stop button 10, and the output end thereof is connected with the device driving circuit 60, and is used for charging when the emergency stop button 10 is closed; the sampling circuit 50 is connected to the soft start circuit 20, and is configured to obtain a first voltage value after the soft start circuit 20 is charged, and transmit the first voltage value to the main control circuit 40; the main control circuit 40 is connected to an input end of the switch circuit 30, and is configured to obtain the first voltage value, and when the first voltage value is greater than a first preset value, the main control circuit 40 outputs a low level signal to the switch circuit 30; the input end of the switch circuit 30 is connected to the emergency stop button 10, and the output end is connected to the soft start circuit 20 and the main control circuit 40, and is configured to receive the low level signal and control the soft start circuit 20 to supply power to the device driving circuit 60 when the emergency stop button 10 is closed; or when the emergency stop button 10 is turned off, the soft start circuit 20 is controlled to stop supplying power to the device driving circuit 60 and output a high level signal to the main control circuit 40. When the equipment needs to be started, the emergency stop button is closed, the charging is carried out through the set soft start circuit, the acquired first voltage value of the soft start circuit is sent to the main control circuit through the sampling circuit, when the first voltage value is larger than a first preset value, the main control circuit controls to send a low level signal to the switching circuit, and the switching circuit controls the soft start circuit to supply power to the equipment driving circuit; when the emergency stop button is disconnected, the switch circuit controls the soft start circuit to stop supplying power to the equipment driving circuit and outputs a high level signal to the main control circuit. After the emergency stop button is closed, the soft start circuit is charged, and after a certain condition is reached, the soft start circuit supplies power for the equipment driving circuit, so that the equipment is started, the equipment is started slowly, the service life of the equipment is prolonged, and the equipment is effectively protected.
In one embodiment, as shown in fig. 2, the emergency stop control circuit further includes: a smash starting circuit 70 and a smash circuit 80; the input end of the clasping and smashing starting circuit 70 is connected with the emergency stop button 10, the output end of the clasping and smashing starting circuit is connected with the clasping and smashing circuit 80, and the clasping and smashing starting circuit is used for outputting a low-level signal to the clasping and smashing circuit 80 when the emergency stop button 10 is closed and an accessed second voltage value reaches a second preset value; the output end of the smashing circuit 80 is connected with the smashing coil 90 and used for receiving the low level signal and controlling the smashing coil 90 to perform the smashing action.
In one embodiment, as shown in fig. 3, the soft start circuit 20 includes: the circuit comprises a first diode D32, a second diode D105, a fuse F9, an inductor L2 and an MOS tube Q18; wherein, the anode of the first diode D32 is connected with the first pin 1 of the emergency stop button 10, and the cathode is connected with one end of the fuse F9; the other end of the fuse F9 is connected to an anode of the second diode D105, a cathode of the second diode D105 is connected to one end of the inductor L2, and the other end of the inductor L2 is connected to a drain of the MOS transistor Q18 and an input end of the sampling circuit 50; the gate of the MOS transistor Q18 is connected to the output terminal of the switching circuit 30, and the source of the MOS transistor Q18 is connected to the device driving circuit 60. In this embodiment, the fuse F9 is used to charge a large capacitor (not shown in the figure) connected to the rear, and when the capacitor is full, the MOS transistor Q18 is started; the fuse F9 and the inductor L2 are used for protecting the MOS tube Q18, and the current is prevented from sudden change.
In one embodiment, as shown in fig. 3, the soft start circuit 20 further includes: a third diode D50, a first capacitor C40 and a first resistor R87; one end of the first capacitor C40 is connected to the source of the MOS transistor Q18, and the other end is connected to the gate of the MOS transistor Q18; the first capacitor C40 is connected with the first capacitor C40 in parallel; the anode of the third diode D50 is connected to the gate of the MOS transistor Q18, and the cathode is connected to the source of the MOS transistor Q18. In this embodiment, the third diode D50 is used to prevent a current from reversely flowing into the MOS transistor Q18; the first capacitor C40 and the first resistor R87 are used for filtering the voltage flowing out of the third diode D50.
In one embodiment, as shown in fig. 3, the switching circuit 30 includes: a first photocoupler U20, a second photocoupler U44, a second resistor R144 and a first common cathode diode D81; a collector of the first photoelectric coupler U20 is connected to the soft start circuit 20, an emitter of the first photoelectric coupler U20 is connected to the main control circuit 40, an anode of the first photoelectric coupler U20 is connected to an external power supply, and a cathode of the first photoelectric coupler U20 is connected to the external power supply and the main control circuit 40; a collector of the second photoelectric coupler U44 is connected to an emitter of the first photoelectric coupler U20, an emitter of the second photoelectric coupler U44 is grounded, an anode of the second photoelectric coupler U44 is connected to the first pin 1 of the emergency stop button 10, and a cathode of the second photoelectric coupler U44 is grounded; a common end of the first common cathode diode D81 is connected to an emitter of the first photocoupler U20, a first anode of the first common cathode diode D81 is connected to the main control circuit 40, and a second anode of the first common cathode diode D81 is grounded; one end of the second resistor R144 is connected to the first anode of the first common cathode diode D81, and the other end is connected to the external power source. In this embodiment, the first photocoupler U20 is used for isolating the voltage signal connected to the emergency stop button 10, and the second photocoupler U44 is used for isolating the master control circuit 40 from outputting a low level signal; the second resistor R144 is used for voltage division, and the first common cathode diode D81 is used for preventing the current backflow at the external power terminal.
In one embodiment, as shown in fig. 3, the switch circuit 30 further includes: a fourth diode D91, a second capacitor C42, a third resistor R91, and a fourth resistor R197; the anode of the fourth diode D91 is connected to the first pin 1 of the emergency stop button 10, and the cathode is connected to the anode of the second photocoupler U44; one end of the second capacitor C42 is connected to the anode of the fourth diode D91, and the other end is grounded; one end of the third resistor R91 is connected with the third resistor R91, and the other end of the third resistor R91 is connected with the collector of the first photoelectric coupler U20; the fourth resistor R197 is connected in parallel with the third resistor R91. In this embodiment, the third resistor R91 and the fourth resistor R197 are configured to divide voltage, and the second capacitor C42 is configured to filter a low-level signal output by the main control circuit 40.
In one embodiment, as shown in fig. 4, the sampling circuit 50 includes: a first chip U43, a fifth resistor R85, a sixth resistor R86 and a third capacitor C39; the positive input end + IN of the first chip U43 is connected with the soft start circuit 20, the negative input end-IN of the first chip U43 is grounded, and the output end OUT of the first chip U43 is connected with the main control circuit 40 and grounded; one end of the fifth resistor R85 is connected to the positive input end + IN of the first chip U43, and the other end is grounded; one end of the sixth resistor R86 is connected to the positive input terminal + IN of the first chip U43, and the other end is connected to an external power supply; the third capacitor C39 is connected in parallel with the fifth resistor R85. In this embodiment, the fifth resistor R85 and the sixth resistor R86 are used for dividing voltage, and the third capacitor C39 is used for filtering the first voltage value after the soft start circuit 20 is charged.
In one embodiment, as shown in fig. 5, the smash starting circuit 70 includes: a second chip U46, a third chip U45, and a second common cathode diode D55; the input end of the second chip U46 is connected to the first anode of the second common-cathode diode D55, and the output end OUT of the second chip U46 is connected to the main control circuit 40; an input end IN of the third chip U45 is connected to the second anode of the second common-cathode diode D55, and an output end OUT of the third chip U45 is connected to the smash circuit 80; the common terminal of the second common cathode diode D55 is connected to the first pin 1 of the emergency stop button 10.
In one embodiment, as shown in fig. 5, the smash starting circuit 70 further includes: a seventh resistor R90, an eighth resistor R140, and a ninth resistor R191; one end of the seventh resistor R90 is connected to the first pin 1 of the emergency stop button 10, and the other end is connected to the common end of the second common cathode diode D55; one end of the eighth resistor R140 is connected to the common end of the second common cathode diode D55, and the other end is grounded; one end of the ninth resistor R191 is connected to the input terminal IN of the third chip U45, and the other end is connected to an external power supply. The seventh resistor R90, the eighth resistor R140 and the ninth resistor R191 are used for voltage division.
In one embodiment, as shown in fig. 6, the pounding circuit 80 includes: a first triode Q11, a second triode Q5, a third diode D10 and a terminal P7; the base of the first triode Q11 is connected to the switching circuit 30, the collector of the first triode Q11 is connected to the base of the second triode Q5, and the emitter of the first triode Q11 is grounded; a collector of the second triode Q5 is connected with an anode of the third diode D10, and an emitter of the second triode Q5 is grounded; the cathode of the third diode D10 is connected to an external power source and the first leg 1 of the terminal P7, and the terminal P7 is connected to the smash-holding coil 90.
The working principle of the application is as follows:
in normal operation, that is, when the emergency stop button 10 is closed, since the emergency stop button 10 is connected to an external power supply, the fuse F9 may charge a large capacitor (not shown in the figure) connected to the rear, and at the same time, the first photoelectric coupler U20 is turned on, and when the capacitor is full, the MOS transistor Q18 is turned on, so as to supply power to the device driving circuit 60; meanwhile, a high level signal is output to the main control circuit 40 through the first photocoupler U20, so that the main control circuit 40 controls other devices in the next step.
When the emergency stop button 10 is pressed in the last working state, that is, when the emergency stop button 10 is turned off, since the emergency stop button 10 is connected to an external power source, the external power source cannot charge a large capacitor (not shown) connected to the rear through the fuse F9, at this time, the first chip U43 collects a first voltage value at the rear end of the inductor L2 in real time and outputs the first voltage value to the main control circuit 40, the main control circuit 40 compares the first voltage value with the first preset value preset inside the first chip U, if the first voltage value is greater than the first preset value, the main control circuit 40 outputs a low level signal to the first photoelectric coupler U20, the first photoelectric coupler U20 is turned off, and the MOS transistor Q18 is turned off, that is, the connection between the MOS transistor Q18 and the device driving circuit 60 is turned off, and the device driving circuit 60 cannot be powered on, and the device stops operating.
After the scram button 10 is pressed, the motor of the device normally drops from a high position due to power failure, the smash starting circuit and the smash circuit are arranged, the third chip U45 normally supplies power through an external power supply connected with the scram button 10 and 3.3V provided by another external power supply, when the scram button 10 is disconnected, the second voltage value of the third chip U45 drops to 3.3V, in the process, when the third chip U45 detects that the second voltage value reaches a preset second preset value (generally 20V), a low level signal is output to the second triode Q5, and the second triode Q5 outputs the low level signal to the smash coil 90 which is connected with the terminal P7, so that the smash coil 90 is powered off and smash, that is, the smash coil of the motor is held tightly and does not drop, and the safety of the motor is guaranteed.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. An emergency stop control circuit, comprising:
the input end of the soft start circuit is connected with the emergency stop button, and the output end of the soft start circuit is connected with the equipment driving circuit and used for charging when the emergency stop button is closed;
the sampling circuit is connected with the soft start circuit and used for acquiring a first voltage value charged by the soft start circuit and transmitting the first voltage value to the main control circuit;
the main control circuit is connected with the input end of the switch circuit and used for acquiring the first voltage value, and when the first voltage value is larger than a first preset value, the main control circuit outputs a low level signal to the switch circuit;
the input end of the switch circuit is connected with the emergency stop button, and the output end of the switch circuit is connected with the soft start circuit and the main control circuit, and the switch circuit is used for receiving the low level signal and controlling the soft start circuit to supply power to the equipment driving circuit when the emergency stop button is closed; or when the emergency stop button is disconnected, the soft start circuit is controlled to stop supplying power to the equipment driving circuit and output a high level signal to the main control circuit.
2. The scram control circuit according to claim 1, further comprising:
the input end of the smashing starting circuit is connected with the emergency stop button, the output end of the smashing starting circuit is connected with the smashing circuit, and the smashing starting circuit is used for outputting a low level signal to the smashing circuit when the emergency stop button is closed and an accessed second voltage value reaches a second preset value;
and the output end of the embracing and smashing circuit is connected with the embracing and smashing coil and used for receiving the low level signal and controlling the embracing and smashing coil to carry out embracing and smashing actions.
3. The scram control circuit of claim 1, wherein the soft start circuit comprises: the circuit comprises a first diode, a second diode, a fuse, an inductor and an MOS (metal oxide semiconductor) tube;
the anode of the first diode is connected with the first pin of the emergency stop button, and the cathode of the first diode is connected with one end of the fuse; the other end of the fuse is connected with the anode of the second diode, the cathode of the second diode is connected with one end of the inductor, and the other end of the inductor is connected with the drain electrode of the MOS tube and the input end of the sampling circuit; the grid of the MOS tube is connected with the output end of the switch circuit, and the source of the MOS tube is connected with the equipment driving circuit.
4. The scram control circuit of claim 3, wherein the soft start circuit further comprises: the third diode, the first capacitor and the first resistor;
one end of the first capacitor is connected with the source electrode of the MOS tube, and the other end of the first capacitor is connected with the grid electrode of the MOS tube;
the first capacitor is connected with the first capacitor in parallel;
and the anode of the third diode is connected with the grid electrode of the MOS tube, and the cathode of the third diode is connected with the source electrode of the MOS tube.
5. The scram control circuit of claim 1, wherein the switching circuit comprises: the first photoelectric coupler, the second resistor and the first common cathode diode;
the collector of the first photoelectric coupler is connected with the soft start circuit, the emitter of the first photoelectric coupler is connected with the main control circuit, the anode of the first photoelectric coupler is connected with an external power supply, and the cathode of the first photoelectric coupler is connected with the external power supply and the main control circuit;
the collector of the second photoelectric coupler is connected with the emitter of the first photoelectric coupler, the emitter of the second photoelectric coupler is grounded, the anode of the second photoelectric coupler is connected with the first pin of the emergency stop button, and the cathode of the second photoelectric coupler is grounded;
the common end of the first common cathode diode is connected with the emitter of the first photoelectric coupler, the first anode of the first common cathode diode is connected with the main control circuit, and the second anode of the first common cathode diode is grounded;
one end of the second resistor is connected with the first anode of the first common cathode diode, and the other end of the second resistor is connected with the external power supply.
6. The scram control circuit of claim 5, wherein the switching circuit further comprises: the fourth diode, the second capacitor, the third resistor and the fourth resistor;
the anode of the fourth diode is connected with the first pin of the emergency stop button, and the cathode of the fourth diode is connected with the anode of the second photoelectric coupler;
one end of the second capacitor is connected with the anode of the fourth diode, and the other end of the second capacitor is grounded;
one end of the third resistor is connected with the third resistor, and the other end of the third resistor is connected with a collector of the first photoelectric coupler;
the fourth resistor is connected in parallel with the third resistor.
7. The scram control circuit of claim 1, wherein the sampling circuit comprises: the circuit comprises a first chip, a fifth resistor, a sixth resistor and a third capacitor;
the positive input end of the first chip is connected with the soft start circuit, the negative input end of the first chip is grounded, and the output end of the first chip is connected with the main control circuit and grounded;
one end of the fifth resistor is connected with the positive input end of the first chip, and the other end of the fifth resistor is grounded;
one end of the sixth resistor is connected with the positive input end of the first chip, and the other end of the sixth resistor is connected with an external power supply;
the third capacitor is connected with the fifth resistor in parallel.
8. The scram control circuit of claim 2, wherein the smash activation circuit 70 comprises: the second chip, the third chip and the second common cathode diode;
the input end of the second chip is connected with the first anode of the second common-cathode diode, and the output end of the second chip is connected with the main control circuit;
the input end of the third chip is connected with the second anode of the second common-cathode diode, and the output end of the third chip is connected with the smashing circuit;
and the common end of the second common cathode diode is connected with the first pin of the emergency stop button.
9. The scram control circuit of claim 8, wherein the pounding activation circuit further comprises: a seventh resistor, an eighth resistor and a ninth resistor;
one end of the seventh resistor is connected with the first pin of the emergency stop button, and the other end of the seventh resistor is connected with the common end of the second common cathode diode;
one end of the eighth resistor is connected with the common end of the second common cathode diode, and the other end of the eighth resistor is grounded;
and one end of the ninth resistor is connected with the input end of the third chip, and the other end of the ninth resistor is connected with an external power supply.
10. The scram control circuit of claim 2, wherein the pounding circuit comprises: the first triode, the second triode, the third diode and the terminal;
the base electrode of the first triode is connected with the switching circuit, the collector electrode of the first triode is connected with the base electrode of the second triode, and the emitting electrode of the first triode is grounded;
the collector of the second triode is connected with the anode of the third diode, and the emitter of the second triode is grounded;
and the cathode of the third diode is connected with an external power supply and the first pin of the terminal, and the terminal is connected with the smashing coil.
CN202222241602.9U 2022-08-24 2022-08-24 Scram control circuit Active CN217954950U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222241602.9U CN217954950U (en) 2022-08-24 2022-08-24 Scram control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222241602.9U CN217954950U (en) 2022-08-24 2022-08-24 Scram control circuit

Publications (1)

Publication Number Publication Date
CN217954950U true CN217954950U (en) 2022-12-02

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Application Number Title Priority Date Filing Date
CN202222241602.9U Active CN217954950U (en) 2022-08-24 2022-08-24 Scram control circuit

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Country Link
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