CN213437721U - Safety ignition cutting torch high-voltage pack control circuit - Google Patents
Safety ignition cutting torch high-voltage pack control circuit Download PDFInfo
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- CN213437721U CN213437721U CN202022101584.5U CN202022101584U CN213437721U CN 213437721 U CN213437721 U CN 213437721U CN 202022101584 U CN202022101584 U CN 202022101584U CN 213437721 U CN213437721 U CN 213437721U
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Abstract
The utility model discloses a safety ignition burning torch high pressure package control circuit, it includes oscillating circuit, a transformer, boost circuit, voltage comparison circuit, a switch, the relay module, the one end power supply of switch is connected, the other end of switch is connected with the input of transformer, oscillating circuit includes first resistance etc, boost circuit includes second electric capacity etc, voltage comparison circuit includes the second resistance, the third resistance, the fourth resistance, operational amplifier, the one end of first resistance is connected with the input of transformer, the other end of first resistance is connected with the positive pole of first diode, the negative pole of first diode is connected with the base of triode, the collecting electrode of first diode, the one end of first electric capacity all is connected with the input of transformer, the projecting pole of first diode, the other end of first electric capacity all grounds. The utility model discloses a convenient control such as oscillating circuit, transformer improves the security.
Description
Technical Field
The utility model relates to a control circuit especially relates to a safety ignition burning torch high pressure package control circuit.
Background
The cutting torch is a tool with a valve for gas cutting, the cutting torch needs high-voltage ignition, a control circuit of the existing cutting torch is inconvenient to control, and certain danger exists due to overhigh voltage and overlow voltage.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defect of prior art, the utility model provides a safety ignition burning torch high pressure package control circuit.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a high-voltage bag control circuit of a safe ignition cutting gun is characterized by comprising an oscillation circuit, a transformer, a booster circuit, a voltage comparison circuit, a switch and a relay module, wherein one end of the switch is connected with a power supply, the other end of the switch is connected with the input end of the transformer, the oscillation circuit comprises a first resistor, a first diode, a triode and a first capacitor, the booster circuit comprises a second capacitor, a third capacitor, a fourth capacitor, a second diode, a third diode and a fourth diode, the voltage comparison circuit comprises a second resistor, a third resistor, a fourth resistor and an operational amplifier, one end of the first resistor is connected with the input end of the transformer, the other end of the first resistor is connected with the anode of the first diode, the cathode of the first diode is connected with the base electrode of the triode, the collector electrode of the first diode and one end of the first capacitor are both connected with the input end of the transformer, the emitter of the first diode and the other end of the first capacitor are grounded; the second diode, the third diode and the fourth diode are sequentially connected in series, one end of the second capacitor and the negative electrode of the second diode are connected with the output interface of the transformer, the positive electrode of the third diode and the negative electrode of the fourth diode are connected with the other end of the second capacitor, the positive electrode of the second diode and the negative electrode of the third diode are connected with one end of the third capacitor, the other end of the third capacitor is connected with one end of the second resistor, and one end of the fourth capacitor is connected with the positive electrode of the fourth diode; the other end of the second resistor is connected with the positive input end of the operational amplifier, one end of the third resistor is connected with one end of the fourth resistor, the other end of the fourth resistor is grounded, the other end of the third resistor is connected with the negative input end of the operational amplifier, and the output interface of the operational amplifier is connected with the relay module.
Preferably, the power supply adopts a direct current power supply, and the power supply mode has multiple schemes, can be a battery detachable charging mode, and can also be an internal self-contained charging mode, so that the use is convenient.
Preferably, the anode of the fourth diode is connected with an output interface, so that high voltage is conveniently output.
Preferably, the third resistor is further connected with a set voltage storage module, and when the output voltage exceeds the set voltage, the circuit is closed through the relay module, so that the whole circuit and external electronic devices are protected, and the output voltage is ensured within a safe range.
The utility model discloses an actively advance the effect and lie in: the control is conveniently carried out through an oscillating circuit, a transformer and the like. When the output voltage exceeds the set voltage, the operational amplifier closes the circuit through the relay module, protects the whole circuit and external electronic devices, ensures the output voltage to be within a safety range, realizes overvoltage protection and improves safety.
Drawings
Fig. 1 is a circuit diagram of the high-voltage pack control circuit of the safety ignition cutting gun of the utility model.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the safety ignition burning torch high voltage control circuit of the present invention comprises an oscillator circuit 101, a transformer 102, a voltage boost circuit 103, a voltage comparison circuit 104, a switch S1, and a relay module, wherein one end of the switch S1 is connected to a power supply VCC, the other end of the switch S1 is connected to an input end of the transformer 102, the oscillator circuit 101 comprises a first resistor R1, a first diode D1, a triode Q1, and a first capacitor C1, the voltage boost circuit 103 comprises a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a second diode D2, a third diode D3, and a fourth diode D4, the voltage comparison circuit 104 comprises a second resistor R2, a third resistor R3, a fourth resistor R4, and an operational amplifier U1, one end of the first resistor R1 is connected to an input end of the transformer 102, the other end of the first resistor 46r 48 is connected to an anode of the first diode D5, a cathode of the first triode 1 is connected to a base of the triode 573Q 24, the collector of the first diode D1 and one end of the first capacitor C1 are both connected to the input end of the transformer 102, and the emitter of the first diode D1 and the other end of the first capacitor C1 are both grounded; a second diode D2, a third diode D3 and a fourth diode D4 are sequentially connected in series, one end of a second capacitor C2 and the cathode of the second diode D2 are both connected with the output interface of the transformer 102, the anode of the third diode D3 and the cathode of the fourth diode D4 are both connected with the other end of the second capacitor C2, the anode of the second diode D2 and the cathode of the third diode D3 are both connected with one end of the third capacitor C3, the other end of the third capacitor C3 is connected with one end of a second resistor R2, and one end of the fourth capacitor C4 is connected with the anode of the fourth diode D4; the other end of the second resistor R2 is connected with the positive input end of the operational amplifier U1, one end of the third resistor R3 is connected with one end of the fourth resistor R4, the other end of the fourth resistor R4 is grounded, the other end of the third resistor R3 is connected with the negative input end of the operational amplifier U1, and the output interface of the operational amplifier U1 is connected with the relay module.
The power supply VCC adopts a direct current power supply, and the power supply mode has multiple schemes, can be charged in a battery detaching mode, also can be an internal self-contained charging mode, and is convenient to use.
The anode of the fourth diode D4 is connected to an OUTPUT port OUTPUT, which facilitates outputting high voltage.
The third resistor R3 is also connected to a set voltage storage module for determining whether the output voltage exceeds the set voltage of the set voltage storage module.
The working principle of the utility model is as follows: the utility model discloses a switch S1, transformer 102, first resistance R1, first diode D1, triode Q1, first electric capacity C1, second electric capacity C2, third electric capacity C3, fourth electric capacity C4, second diode D2, third diode D3, fourth diode D4, second resistance R2, third resistance R3, fourth resistance R4, operational amplifier U1, parts such as relay module are the parts that general standard component or technical staff in the field know, its structure and principle all can learn through the technical manual or learn through conventional experimental method for this technical staff. When the circuit is used, the switch S1 is closed to switch on the circuit, the current flowing through the transformer 102 cannot change suddenly, so that the collector voltage Uce of the triode Q1 is reduced rapidly, and the base voltage Ube of the triode Q1 is increased rapidly through the coupling of the transformer 102. At this time, the transistor Q1 operates in a saturation state (Ube > -: Uce). The base current ib of transistor Q1 loses control of the collector current ic of transistor Q1. Then, as time increases, the collector voltage Uce of the transistor Q1 gradually increases, and the base voltage Ube of the transistor Q1 gradually decreases through the discharge between the base and the emitter. The base voltage Ube of transistor Q1 drops causing the base current ib of transistor Q1 to decrease. When ib decreases to ic/β (β is the current amplification of the transistor), transistor Q1 goes back into amplification, so that the decrease in ib causes a decrease in ic, resulting in a change in the direction of the induced electromotive force on the transformer winding, which trend further causes a decrease in ib. Until transistor Q1 quickly changes to the off state. When ic is equal to 0, Uce gradually rises through the transformer 102, and at this time, the power supply VCC charges the base voltage through the first resistor R1 and the transformer 102, Ube gradually rises, and when the collector voltage Ube of the transistor Q1 rises to about 0.7v, the transistor Q1 starts to conduct again, so that the next cycle starts, and the control is convenient. When the output voltage exceeds the set voltage, the operational amplifier U1 closes the circuit through the relay module, protects the whole circuit and external electronic devices, ensures the output voltage to be within a safety range, realizes overvoltage protection, and improves safety.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A high-voltage bag control circuit of a safe ignition cutting gun is characterized by comprising an oscillation circuit, a transformer, a booster circuit, a voltage comparison circuit, a switch and a relay module, wherein one end of the switch is connected with a power supply, the other end of the switch is connected with the input end of the transformer, the oscillation circuit comprises a first resistor, a first diode, a triode and a first capacitor, the booster circuit comprises a second capacitor, a third capacitor, a fourth capacitor, a second diode, a third diode and a fourth diode, the voltage comparison circuit comprises a second resistor, a third resistor, a fourth resistor and an operational amplifier, one end of the first resistor is connected with the input end of the transformer, the other end of the first resistor is connected with the anode of the first diode, the cathode of the first diode is connected with the base electrode of the triode, the collector electrode of the first diode and one end of the first capacitor are both connected with the input end of the transformer, the emitter of the first diode and the other end of the first capacitor are grounded; the second diode, the third diode and the fourth diode are sequentially connected in series, one end of the second capacitor and the negative electrode of the second diode are connected with the output interface of the transformer, the positive electrode of the third diode and the negative electrode of the fourth diode are connected with the other end of the second capacitor, the positive electrode of the second diode and the negative electrode of the third diode are connected with one end of the third capacitor, the other end of the third capacitor is connected with one end of the second resistor, and one end of the fourth capacitor is connected with the positive electrode of the fourth diode; the other end of the second resistor is connected with the positive input end of the operational amplifier, one end of the third resistor is connected with one end of the fourth resistor, the other end of the fourth resistor is grounded, the other end of the third resistor is connected with the negative input end of the operational amplifier, and the output interface of the operational amplifier is connected with the relay module.
2. A safety ignition burning torch high voltage package control circuit as claimed in claim 1, wherein said power supply source is a dc power supply.
3. A safety ignition burning torch high voltage package control circuit as claimed in claim 1, wherein the positive pole of said fourth diode is connected to an output interface.
4. The high voltage pack control circuit for a safety ignition cutting gun as claimed in claim 1, wherein said third resistor is further connected to a set voltage storage module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022101584.5U CN213437721U (en) | 2020-09-22 | 2020-09-22 | Safety ignition cutting torch high-voltage pack control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022101584.5U CN213437721U (en) | 2020-09-22 | 2020-09-22 | Safety ignition cutting torch high-voltage pack control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213437721U true CN213437721U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022101584.5U Active CN213437721U (en) | 2020-09-22 | 2020-09-22 | Safety ignition cutting torch high-voltage pack control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213437721U (en) |
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2020
- 2020-09-22 CN CN202022101584.5U patent/CN213437721U/en active Active
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