Short-circuit self-monitoring welding control circuit

Abstract

The utility model discloses a short-circuit self-monitoring welding control circuit, which belongs to the technical field of voltage stabilizing circuits, and is characterized in that a 5V power supply is input through a power supply, then the voltage stabilizing circuit is powered, and the power supply is output after voltage reduction; and the constant current circuit is arranged to keep the current stable and then transmit the current to the temperature acquisition circuit and the voltage division circuit for temperature acquisition and voltage division processing, and then the current is transmitted to the alarm for alarming.

Description

Technical Field

[0001] The utility model relates to a voltage stabilizing circuit, in particular to a short-circuit self-monitoring welding control circuit, belonging to the technical field of voltage stabilizing circuits. Background Art

[0002] When welding, it is necessary to stabilize the circuit and monitor the temperature. In the prior art, such as CN108628378A, the voltage stabilization circuit includes multiple voltage stabilizers and multiple resistors. The multiple voltage stabilizers are connected in series, and the ground terminal of each of the multiple voltage stabilizers is grounded after passing through at least one resistor among the multiple resistors.

[0003] Each of the multiple voltage regulators can stabilize the voltage divided by the resistor after the voltage is divided by the resistor, and then pass it to the next voltage regulator to achieve step-by-step voltage sharing of the voltage regulator, and finally generate a suitable voltage for powering subsequent electrical appliances.

[0004] However, in the prior art, the provided voltage cannot be detected and the voltage cannot be alarmed during voltage stabilization, resulting in the problem that excessive voltage will damage the circuit. Therefore, a short-circuit self-monitoring welding control circuit is designed to solve the above problem. Utility Model Content

[0005] The main purpose of the utility model is to provide a short-circuit self-monitoring welding control circuit, which inputs a 5V power supply through the power supply, then supplies power to the voltage stabilizing circuit and steps down the power supply for transmission, and by setting a constant current circuit, the current is kept stable and then transmitted to the temperature acquisition circuit and the voltage divider circuit for temperature acquisition and voltage division processing, and then transmitted to the alarm for alarm.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] A short circuit self-monitoring welding control circuit, a temperature acquisition circuit, a voltage divider circuit and a voltage stabilizing circuit;

[0008] The input end of the voltage stabilizing circuit is electrically connected to a power supply and a constant current circuit, the output part of the constant current circuit is connected to a voltage divider circuit and a temperature collection circuit, and the output part of the temperature collection circuit is connected to an alarm.

[0009] Preferably, the temperature acquisition circuit includes a temperature acquisition module and a resistor R4, the alarm is electrically connected to one end of the capacitor C4, one end of the resistor R4 and one end of the temperature acquisition module, the other end of the capacitor C4 and the temperature acquisition module is grounded, and the other end of the resistor R4 is electrically connected to the constant current circuit and the voltage divider circuit.

[0010] Preferably, the voltage divider circuit includes resistors R6 and R5, the other end of resistor R4 is electrically connected to resistor R5, the other end of resistor R5 is electrically connected to one end of resistor R6 and the controllable end of controllable diode Z1, and the other end of resistor R6 is grounded.

[0011] Preferably, the anode of the controllable diode Z1 is grounded, the cathode of the controllable diode Z1 is electrically connected to the constant current circuit, and one end of the resistor R6 is also electrically connected to the constant current circuit via the capacitor C5.

[0012] Preferably, the constant current circuit includes a transistor Q1 and a resistor R2, the other end of the capacitor C5 is electrically connected to one end of the resistor R2 and the b-pole of the transistor Q1, and the e-pole of the transistor Q1 is electrically connected to the other end of the resistor R4, and the c-pole of the transistor Q1 is electrically connected to the power supply.

[0013] Preferably, the voltage stabilizing circuit includes a voltage stabilizing module U1, terminal 1 of the voltage stabilizing module U1 is electrically connected to a power supply, terminal 2 of the voltage stabilizing module U1 is grounded, terminal 3 of the voltage stabilizing module U1 is electrically connected to one end of a resistor R1, terminal 5 of the voltage stabilizing module U1 is electrically connected to one end of a capacitor C3 and an output power supply, the other end of the capacitor C3 is grounded, terminal 4 of the voltage stabilizing module U1 is electrically connected to one end of a capacitor C2, and the other end of the capacitor C2 is grounded.

[0014] Preferably, the other end of the resistor R1 is electrically connected to a power source and one end of the capacitor C1 , and the other end of the capacitor C1 is grounded.

[0015] Beneficial technical effects of the utility model:

[0016] The utility model provides a short-circuit self-monitoring welding control circuit and a quick-drying method. A 5V power supply is input through a power supply, and then a voltage stabilizing circuit is powered and the power supply is stepped down and transmitted out. A constant current circuit is set to keep the current stable and then transmit it to a temperature acquisition circuit and a voltage divider circuit for temperature acquisition and voltage division processing, and then the current is transmitted to an alarm for alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a circuit diagram of a preferred embodiment of a short-circuit self-monitoring welding control circuit according to the present invention.

[0018] In the figure: 1-temperature acquisition circuit, 2-voltage divider circuit, 3-voltage stabilization circuit, 4-constant current circuit. DETAILED DESCRIPTION

[0019] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0020] like Figure 1 As shown, this embodiment provides a short circuit self-monitoring welding control circuit, a temperature acquisition circuit 1, a voltage divider circuit 2 and a voltage stabilizing circuit 3;

[0021] The input end of the voltage stabilizing circuit 3 is electrically connected to a power source and a constant current circuit 4 , the output portion of the constant current circuit 4 is connected to a voltage divider circuit 2 and a temperature acquisition circuit 1 , and the output portion of the temperature acquisition circuit 1 is connected to an alarm.

[0022] The 5V power supply is input through the power supply, and then the voltage stabilizing circuit 3 is powered and the power supply is stepped down and transmitted out. The current is kept stable by setting the constant current circuit 4 and then transmitted to the temperature acquisition circuit 1 and the voltage divider circuit 2 for temperature acquisition and voltage division processing, and then transmitted to the alarm for alarm.

[0023] In this embodiment, the temperature acquisition circuit 1 includes a temperature acquisition module and a resistor R4. The alarm is electrically connected to one end of the capacitor C4, one end of the resistor R4 and one end of the temperature acquisition module. The other end of the capacitor C4 and the temperature acquisition module is grounded, and the other end of the resistor R4 is electrically connected to the constant current circuit 4 and the voltage divider circuit 2.

[0024] The temperature acquisition module and resistor R4 are set to realize the functions of voltage division and stability detection at the same time.

[0025] In this embodiment, the voltage divider circuit 2 includes resistors R6 and R5. The other end of resistor R4 is electrically connected to resistor R5. The other end of resistor R5 is electrically connected to one end of resistor R6 and the controllable end of controllable diode Z1. The other end of resistor R6 is grounded.

[0026] The function of reducing the voltage is achieved by setting the resistors R6 and R5.

[0027] In this embodiment, the anode of the controllable diode Z1 is grounded, the cathode of the controllable diode Z1 is electrically connected to the constant current circuit 4 , and one end of the resistor R6 is also electrically connected to the constant current circuit 4 via the capacitor C5 .

[0028] In this embodiment, the constant current circuit 4 includes a transistor Q1 and a resistor R2, the other end of the capacitor C5 is electrically connected to one end of the resistor R2 and the b-pole of the transistor Q1, and the e-pole of the transistor Q1 is electrically connected to the other end of the resistor R4, and the c-pole of the transistor Q1 is electrically connected to the power supply.

[0029] In this embodiment, the voltage stabilizing circuit 3 includes a voltage stabilizing module U1, terminal 1 of the voltage stabilizing module U1 is electrically connected to the power supply, terminal 2 of the voltage stabilizing module U1 is grounded, terminal 3 of the voltage stabilizing module U1 is electrically connected to one end of the resistor R1, terminal 5 of the voltage stabilizing module U1 is electrically connected to one end of the capacitor C3 and the output power supply, the other end of the capacitor C3 is grounded, terminal 4 of the voltage stabilizing module U1 is electrically connected to one end of the capacitor C2, and the other end of the capacitor C2 is grounded.

[0030] In this embodiment, the other end of the resistor R1 is electrically connected to a power source and one end of the capacitor C1 , and the other end of the capacitor C1 is grounded.

[0031] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A short circuit self-monitoring welding control circuit, characterized in that: Temperature acquisition circuit (1), voltage divider circuit (2) and voltage stabilization circuit (3); The input end of the voltage stabilizing circuit (3) is electrically connected to a power source and a constant current circuit (4), the output portion of the constant current circuit (4) is connected to a voltage divider circuit (2) and a temperature acquisition circuit (1), and the output portion of the temperature acquisition circuit (1) is connected to an alarm.

2. A short circuit self-monitoring welding control circuit according to claim 1, characterized in that: The temperature acquisition circuit (1) comprises a temperature acquisition module and a resistor R4; the alarm is electrically connected to one end of a capacitor C4, one end of the resistor R4 and one end of the temperature acquisition module; the other end of the capacitor C4 and the temperature acquisition module is grounded; and the other end of the resistor R4 is electrically connected to a constant current circuit (4) and a voltage divider circuit (2).

3. A short circuit self-monitoring welding control circuit according to claim 2, characterized in that: The voltage divider circuit (2) comprises resistors R6 and R5, the other end of the resistor R4 is electrically connected to the resistor R5, the other end of the resistor R5 is electrically connected to one end of the resistor R6 and the controllable end of the controllable diode Z1, and the other end of the resistor R6 is grounded.

4. A short circuit self-monitoring welding control circuit according to claim 3, characterized in that: The anode of the controllable diode Z1 is grounded, the cathode of the controllable diode Z1 is electrically connected to the constant current circuit (4), and one end of the resistor R6 is also electrically connected to the constant current circuit (4) through the capacitor C5.

5. A short circuit self-monitoring welding control circuit according to claim 4, characterized in that: The constant current circuit (4) includes a transistor Q1 and a resistor R2, the other end of the capacitor C5 is electrically connected to one end of the resistor R2 and the b-pole of the transistor Q1, and the e-pole of the transistor Q1 is electrically connected to the other end of the resistor R4, and the c-pole of the transistor Q1 is electrically connected to a power source.

6. A short circuit self-monitoring welding control circuit according to claim 5, characterized in that: The voltage stabilizing circuit (3) comprises a voltage stabilizing module U1, wherein a terminal 1 of the voltage stabilizing module U1 is electrically connected to a power source, a terminal 2 of the voltage stabilizing module U1 is grounded, a terminal 3 of the voltage stabilizing module U1 is electrically connected to one end of a resistor R1, a terminal 5 of the voltage stabilizing module U1 is electrically connected to one end of a capacitor C3 and an output power source, the other end of the capacitor C3 is grounded, and a terminal 4 of the voltage stabilizing module U1 is electrically connected to one end of a capacitor C2, the other end of the capacitor C2 is grounded.

7. A short circuit self-monitoring welding control circuit according to claim 6, characterized in that: The other end of the resistor R1 is electrically connected to a power source and one end of the capacitor C1 , and the other end of the capacitor C1 is grounded.

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