CN212486400U - High-voltage corona power supply with open-circuit short-circuit protection - Google Patents
High-voltage corona power supply with open-circuit short-circuit protection Download PDFInfo
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- CN212486400U CN212486400U CN202021365592.4U CN202021365592U CN212486400U CN 212486400 U CN212486400 U CN 212486400U CN 202021365592 U CN202021365592 U CN 202021365592U CN 212486400 U CN212486400 U CN 212486400U
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Abstract
The utility model discloses a high voltage corona power supply of short-circuit protection opens a way in area, including electric capacity C1, electric capacity C2, silicon controlled rectifier D3, triode Q1 and triode Q2, electric capacity C1's one end connecting resistance RS and inductance L1, 220V alternating current is connected to resistance RS's the other end, and electric capacity C2 and rectifier bridge T's port 4 and electric capacity C2 are connected to inductance L1's the other end, and electric capacity C2 and inductance L2 are connected to rectifier bridge T's port 2, and the other end of 220V alternating current is connected to inductance L2; the utility model provides a present high voltage corona power take place to open a way or the short circuit can not the problem of stop work with protection power and equipment and reduced manufacturing cost and the production degree of difficulty.
Description
Technical Field
The utility model relates to a power technical field specifically is a high voltage corona power of short-circuit protection is opened a way in area.
Background
The existing high-voltage corona power supply cannot stop working timely in an open circuit or short circuit state, so that the power supply is easily damaged, even equipment is burnt, and the power supply with open circuit or short circuit protection is required to obtain a voltage signal from a high-voltage transformer independently, so that the production difficulty of the high-voltage transformer is increased.
And the working effect of the high-voltage output end is also influenced because of different loads of the high-voltage output end.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high voltage corona power of short-circuit protection is opened a way in area to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-voltage corona power supply with open-circuit short-circuit protection comprises a capacitor C1, a capacitor C2, a thyristor D3, a triode Q1 and a triode Q2, wherein one end of the capacitor C1 is connected with a resistor RS and an inductor L1, the other end of the resistor RS is connected with 220V alternating current, the other end of the inductor L1 is connected with a capacitor C1, a port 4 and a capacitor C1 of a rectifier bridge T, a port 2 of the rectifier bridge T is connected with the capacitor C1 and the inductor L1, the other end of the inductor L1 is connected with the other end of the 220V alternating current, a port 1 of the rectifier bridge T is connected with the other end of the capacitor C1, the resistor R1, the transformer winding L1, the capacitor C1, an output end A and the negative electrode of the thyristor D1, the other end of the capacitor C1 is connected with the other end of the resistor R1, the control electrode of the thyristor D1 and the negative electrode of a diode D1, the diode D1 is connected with, The collector and the output end B of the triode Q3 and the port 3 of the rectifier bridge T, the anode of the controlled silicon D3 is connected with the other end of the resistor R3 and the resistor R4, the other end of the resistor R4 is connected with the other end of the capacitor C4, the anode of the diode D4 and the anode of the diode D3, the cathode of the diode D3 is connected with the cathode of the transformer winding L7 and the cathode of the diode D6, the power supply circuit comprises a collector of a triode Q2, a resistor R10, a resistor R8 and a transformer winding L6, wherein the other end of the transformer winding L6 is connected with a resistor R5, the other end of a resistor R5 is connected with the base of a triode Q3 and the other end of a resistor R8, the emitter of the triode Q3 is connected with the anode of a diode D5 and the other end of a resistor R10, the other end of a diode D4 is connected with a resistor R6, the other end of a resistor R7 and the base of a triode Q2, the other end of a resistor R6 is connected with the other end of a transformer winding L5, and the emitter of the triode Q2 is connected with the anode of a diode D46.
As a further technical solution of the present invention: the diode D4 is a TVS diode.
As a further technical solution of the present invention: the transistor Q2 and the transistor Q3 are both NPN transistors.
As a further technical solution of the present invention: the controllable silicon D3 is a unidirectional controllable silicon.
As a further technical solution of the present invention: the rectifier bridge T is composed of four rectifier diodes.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a present high voltage corona power take place to open a way or the short circuit can not the problem of stop work with protection power and equipment and reduced manufacturing cost and the production degree of difficulty.
Drawings
Fig. 1 is a circuit diagram of the present invention.
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 work belong to the protection scope of the present invention.
Referring to fig. 1, embodiment 1: a high-voltage corona power supply with open-circuit short-circuit protection comprises a capacitor C1, a capacitor C2, a thyristor D3, a triode Q1 and a triode Q2, wherein one end of the capacitor C1 is connected with a resistor RS and an inductor L1, the other end of the resistor RS is connected with 220V alternating current, the other end of the inductor L1 is connected with a capacitor C1, a port 4 and a capacitor C1 of a rectifier bridge T, a port 2 of the rectifier bridge T is connected with the capacitor C1 and the inductor L1, the other end of the inductor L1 is connected with the other end of the 220V alternating current, a port 1 of the rectifier bridge T is connected with the other end of the capacitor C1, the resistor R1, the transformer winding L1, the capacitor C1, an output end A and the negative electrode of the thyristor D1, the other end of the capacitor C1 is connected with the other end of the resistor R1, the control electrode of the thyristor D1 and the negative electrode of a diode D1, the diode D1 is connected with, The collector and the output end B of the triode Q3 and the port 3 of the rectifier bridge T, the anode of the controlled silicon D3 is connected with the other end of the resistor R3 and the resistor R4, the other end of the resistor R4 is connected with the other end of the capacitor C4, the anode of the diode D4 and the anode of the diode D3, the cathode of the diode D3 is connected with the cathode of the transformer winding L7 and the cathode of the diode D6, the power supply circuit comprises a collector of a triode Q2, a resistor R10, a resistor R8 and a transformer winding L6, wherein the other end of the transformer winding L6 is connected with a resistor R5, the other end of a resistor R5 is connected with the base of a triode Q3 and the other end of a resistor R8, the emitter of the triode Q3 is connected with the anode of a diode D5 and the other end of a resistor R10, the other end of a diode D4 is connected with a resistor R6, the other end of a resistor R7 and the base of a triode Q2, the other end of a resistor R6 is connected with the other end of a transformer winding L5, and the emitter of the triode Q2 is connected with the anode of a diode D46.
The capacitor C1, C2, inductance L1 and L2 in the circuit form the circuit of preventing external and internal interference, connect the load (capacitive ozone slice or ozone tube) by inductance L3 (high-voltage bag), when open circuit or short circuit, A, B two points are promoted to about 300V by the original 270V direct-current voltage, it is that R1 has 10-30V voltage to provide the silicon controlled rectifier trigger pole R2 and C3, make the silicon controlled rectifier conduct, the circuit oscillation source is that providing triggering diode D4 by R3 and R4, the shop assistant starts the vibration work, and the oscillation source of silicon controlled rectifier bar R3 is after passing through the ground, thus make the whole power supply stop vibrating, only after removing the obstacle of L3 high bag, can work normally.
The design judges and executes power protection by using the disturbance of the voltage at two ends of a series capacitor at the input end of a high-voltage transformer when the output end of the high-voltage transformer is open-circuited or short-circuited, when the output of an L3 high-voltage packet is open-circuited or short-circuited, a A, B point is increased from the original 220V to a high level of 250-300V, and the trigger voltage of positive voltage from R1 and D2 to D3 is increased to conduct the silicon controlled rectifier, so that base oscillation signals of Q2 and Q3 are short-circuited to the ground, and the Q2 and Q3 stop working, and can normally work after the fault is cleared after the power is cut off.
In example 2, the diode D4 is a TVS diode in addition to example 1. Transistor Q2 and transistor Q3 are NPN transistors. Thyristor D3 is a one-way thyristor. The rectifier bridge T consists of four rectifier diodes.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented 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 (5)
1. A high-voltage corona power supply with open-circuit short-circuit protection comprises a capacitor C1, a capacitor C2, a controlled silicon D3, a triode Q1 and a triode Q2, and is characterized in that one end of the capacitor C1 is connected with a resistor RS and an inductor L1, the other end of the resistor RS is connected with 220V alternating current, the other end of the inductor L1 is connected with a capacitor C2 and a port 4 and a capacitor C2 of a rectifier bridge T, the port 2 of the rectifier bridge T is connected with a capacitor C2 and an inductor L2, the other end of the inductor L2 is connected with the other end of the 220V alternating current, a port 1 of the rectifier bridge T is connected with the other end of the resistor R2, a capacitor C2, a resistor R2, a transformer winding L2, a capacitor C2, an output end A and the negative electrode of the controlled silicon D2, the other end of the capacitor C2 is connected with the other end of the resistor R2, the control electrode of the controlled silicon D2 and the negative electrode, A capacitor C6, a cathode of a diode D5, a collector of a triode Q3, an output end B and a port 3 of a rectifier bridge T, the anode of the thyristor D3 is connected to the other end of the resistor R3 and the resistor R4, the other end of the resistor R4 is connected to the other end of the capacitor C4, and the anodes of the diode D4 and the diode D3, the cathode of the diode D3 is connected to the transformer winding L3, the cathode of the diode D3, the collector of the transistor Q3, the resistor R3 and the transformer winding L3, the other end of the transformer winding L3 is connected to the resistor R3, the other end of the resistor R3 is connected to the base of the transistor Q3 and the other end of the resistor R3, the emitter of the transistor Q3 is connected to the anode of the diode D3 and the other end of the resistor R3, the other end of the diode D3 is connected to the resistor R3, the other end of the resistor R3 and the base of the transistor Q3, the other end of the resistor R3 is connected to the other end of the transformer winding L3.
2. The high voltage corona power supply with open circuit short circuit protection of claim 1 wherein said diode D4 is a TVS diode.
3. The high voltage corona power supply with open circuit short circuit protection of claim 1, wherein said transistor Q2 and transistor Q3 are NPN transistors.
4. The high-voltage corona power supply with open-circuit short-circuit protection according to claim 1, wherein said thyristor D3 is a unidirectional thyristor.
5. The high-voltage corona power supply with open-circuit short-circuit protection according to any one of claims 1 to 4, wherein said rectifier bridge T is composed of four rectifier diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021365592.4U CN212486400U (en) | 2020-07-13 | 2020-07-13 | High-voltage corona power supply with open-circuit short-circuit protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021365592.4U CN212486400U (en) | 2020-07-13 | 2020-07-13 | High-voltage corona power supply with open-circuit short-circuit protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212486400U true CN212486400U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021365592.4U Expired - Fee Related CN212486400U (en) | 2020-07-13 | 2020-07-13 | High-voltage corona power supply with open-circuit short-circuit protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212486400U (en) |
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2020
- 2020-07-13 CN CN202021365592.4U patent/CN212486400U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 Termination date: 20210713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |