CN220711352U - Topological structure of power supply circuit - Google Patents
Topological structure of power supply circuit Download PDFInfo
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- CN220711352U CN220711352U CN202322430339.2U CN202322430339U CN220711352U CN 220711352 U CN220711352 U CN 220711352U CN 202322430339 U CN202322430339 U CN 202322430339U CN 220711352 U CN220711352 U CN 220711352U
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- 239000003990 capacitor Substances 0.000 claims abstract description 49
- 239000007787 solid Substances 0.000 claims description 2
- 241000255925 Diptera Species 0.000 abstract description 12
- 230000002147 killing effect Effects 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a topological structure of a power circuit, wherein an emitter of an NPN tube Q1 is connected to a cathode of a battery BT1 through a resistor R2, a collector of the NPN tube Q1 is connected to a collector of the PNP tube Q2 through a primary side of a transformer T1, and the collector of the NPN tube Q1 is connected back to a base of the NPN tube Q1 through a capacitor C1 and a resistor R1; the positive electrode of the battery BT1 is connected to the collector electrode of the PNP tube Q2 through a switch S1, and the base electrode of the PNP tube Q2 is connected to the junction between the capacitor C1 and the resistor R1; one end of the secondary side of the transformer T1 is connected with the anode of the diode D1 through a capacitor C2, the cathode of the diode D1 is connected with the other end of the secondary side of the transformer T1 and is connected with the anode of the diode D2 through a capacitor C3, the cathode of the diode D2 is connected with the anode of the diode D1 through a capacitor C4 and is connected with the anode of the diode D3, the cathode of the diode D3 is connected with the anode of the diode D2, and the anode of the diode D3 is connected back to a junction between the secondary side of the transformer T1 and the capacitor C2 through a resistor R5 and a load FZ 1. The circuit can kill mosquitoes through battery driving, and has the advantages of simplicity and low cost.
Description
Technical Field
The utility model relates to the field of mosquito killing, in particular to a topological structure of a power circuit of an electric mosquito swatter.
Background
The electric mosquito swatter is used as a small household appliance product, has the advantages of convenience, good mosquito killing effect, no chemical pollution, safety, sanitation and the like, is popular among people, is used as a daily product of the small household appliance, and is particularly important for cost control of market competition requirements. The power supply driving circuit of the traditional electric mosquito swatter has a complex general topological structure and is not beneficial to low cost.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a power circuit topology of an electric mosquito swatter, which can kill mosquitoes through battery driving and has the advantages of simplicity and low cost.
Therefore, a topology structure of a power supply circuit is provided, which comprises an NPN tube Q1, a PNP tube Q2, a resistor R1, a resistor R2, a capacitor C1, a battery BT1, a switch S1, a transformer T1, a capacitor C2, a capacitor C3, a capacitor C4, a diode D1, a diode D2, a diode D3, a resistor R5 and a load FZ1; the emitter of the NPN tube Q1 is connected to the cathode of the battery BT1 through a resistor R2, the collector of the NPN tube Q1 is connected to the collector of the PNP tube Q2 through the primary side of a transformer T1, and the collector of the NPN tube Q1 is connected back to the base of the NPN tube Q1 through a capacitor C1 and a resistor R1; the positive electrode of the battery BT1 is connected to the collector electrode of the PNP tube Q2 through a switch S1, and the base electrode of the PNP tube Q2 is connected to a contact point between the capacitor C1 and the resistor R1; one end of the secondary side of the transformer T1 is connected with the anode of the diode D1 through a capacitor C2, the cathode of the diode D1 is connected with the other end of the secondary side of the transformer T1 and is connected with the anode of the diode D2 through a capacitor C3, the cathode of the diode D2 is connected with the anode of the diode D1 and is connected with the anode of the diode D3 through a capacitor C4, the cathode of the diode D3 is connected with the anode of the diode D2, and the anode of the diode D3 is connected with a junction between the secondary side of the transformer T1 and the capacitor C2 through a resistor R5 and a load FZ 1.
Further, the capacitor C5 is also included, one end of the capacitor C is connected with the junction between the resistor R5 and the load FZ1, and the other end of the capacitor C is grounded.
Further, the PNP switch further comprises a resistor R3, and the switch S1 is connected to the collector of the PNP tube Q2 through the resistor R3.
Further, the switch S1 is a solid state switch.
The circuit disclosed by the utility model realizes oscillation, capacitance and voltage doubling by virtue of the NPN tube Q1 and the PNP tube Q2, meets the mosquito killing requirement of low current and high voltage, ensures the use safety, and is simple in circuit structure and low in implementation cost.
Drawings
The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 shows the power circuit topology of the present utility model.
Detailed Description
The utility model will be further described with reference to the following examples.
The topology structure of the power supply circuit of the embodiment is shown in fig. 1, and includes an NPN transistor Q1, a PNP transistor Q2, a resistor R1, a resistor R2, a capacitor C1, a battery BT1, a switch S1, a transformer T1, a capacitor C2, a capacitor C3, a capacitor C4, a diode D1, a diode D2, a diode D3, a resistor R5, and a load FZ1; the emitter of the NPN tube Q1 is connected to the cathode of the battery BT1 through a resistor R2, the collector of the NPN tube Q1 is connected to the collector of the PNP tube Q2 through the primary side of a transformer T1, and the collector of the NPN tube Q1 is connected back to the base of the NPN tube Q1 through a capacitor C1 and a resistor R1; the positive electrode of the battery BT1 is connected to the collector electrode of the PNP tube Q2 through a switch S1, and the base electrode of the PNP tube Q2 is connected to the junction between the capacitor C1 and the resistor R1; one end of the secondary side of the transformer T1 is connected with the anode of the diode D1 through a capacitor C2, the cathode of the diode D1 is connected with the other end of the secondary side of the transformer T1 and is connected with the anode of the diode D2 through a capacitor C3, the cathode of the diode D2 is connected with the anode of the diode D1 through a capacitor C4 and is connected with the anode of the diode D3, the cathode of the diode D3 is connected with the anode of the diode D2, and the anode of the diode D3 is connected back to a junction between the secondary side of the transformer T1 and the capacitor C2 through a resistor R5 and a load FZ 1.
The circuit is driven by direct current provided by a battery BT1, when a switch S1 is just conducted, the C1 cannot suddenly change due to the capacitance characteristic, the voltage on the left side of the C1 is equal to the positive voltage of the battery and is equivalent to short circuit, the Q2 is cut off in high level, the Q1 is conducted, current sequentially flows through the primary side of the T1, the C1, the R1, the base of the Q1, the emitter of the Q1 and the R2 of the Q1 from the positive electrode of the battery to return to the negative electrode of the battery, and the C1 is charged; then, along with the decrease of C1 charging current, Q2 is conducted, Q1 is cut off, C1 discharges, current returns to a Q2 base electrode through a C1 primary side, a T1 primary side and a Q2 collector electrode, and on the other hand, the current passes through a C1 primary side, a Q2 collector electrode, a Q2 emitter electrode, a Q1 base electrode and a Q1 emitter electrode R2 to a negative electrode, and after the C1 discharges, Q1 is conducted again, so that oscillation is repeatedly realized, and the secondary side of the transformer generates voltage. Voltage generated by the secondary side of the transformer realizes voltage doubling through the cooperation of the capacitor C2, the capacitor C3, the capacitor C4, the diode D1, the diode D2 and the diode D3 so as to meet the mosquito killing requirement of low current and high voltage and ensure the use safety. The whole circuit realizes oscillation and voltage doubling by the NPN tube Q1 and the PNP tube Q2 as well as the capacitor and the diode, and has simple circuit structure and low implementation cost.
Further, the capacitor C5 is further included, one end of the capacitor C5 is connected with a junction between the resistor R5 and the load FZ1, and the other end of the capacitor C is grounded, so that RC filtering and deburring are formed by the capacitor C5. In the circuit, a switch S1 is connected to the collector of the PNP tube Q2 through a resistor R3 for protection.
In the utility model, the switch S1 is a solid-state switch, which can adapt to high-frequency environment, avoid arc generation and has longer service life.
The power supply circuit is mainly used for generating electricity by the electric mosquito swatter, and the load FZ1 can be a metal net of the electric mosquito swatter.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the scope of protection of the present application, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (4)
1. A topology of a power supply circuit, characterized by:
the power supply comprises an NPN tube Q1, a PNP tube Q2, a resistor R1, a resistor R2, a capacitor C1, a battery BT1, a switch S1, a transformer T1, a capacitor C2, a capacitor C3, a capacitor C4, a diode D1, a diode D2, a diode D3, a resistor R5 and a load FZ1;
the emitter of the NPN tube Q1 is connected to the cathode of the battery BT1 through a resistor R2, the collector of the NPN tube Q1 is connected to the collector of the PNP tube Q2 through the primary side of a transformer T1, and the collector of the NPN tube Q1 is connected back to the base of the NPN tube Q1 through a capacitor C1 and a resistor R1;
the positive electrode of the battery BT1 is connected to the collector electrode of the PNP tube Q2 through a switch S1, and the base electrode of the PNP tube Q2 is connected to a contact point between the capacitor C1 and the resistor R1;
one end of the secondary side of the transformer T1 is connected with the anode of the diode D1 through a capacitor C2, the cathode of the diode D1 is connected with the other end of the secondary side of the transformer T1 and is connected with the anode of the diode D2 through a capacitor C3, the cathode of the diode D2 is connected with the anode of the diode D1 and is connected with the anode of the diode D3 through a capacitor C4, the cathode of the diode D3 is connected with the anode of the diode D2, and the anode of the diode D3 is connected with a junction between the secondary side of the transformer T1 and the capacitor C2 through a resistor R5 and a load FZ 1.
2. The topology of the power supply circuit of claim 1, wherein: and one end of the capacitor C5 is connected with the junction between the resistor R5 and the load FZ1, and the other end of the capacitor C is grounded.
3. The topology of the power supply circuit of claim 2, wherein: the switch S1 is connected to the collector of the PNP tube Q2 through the resistor R3.
4. The topology of the power supply circuit of claim 1, wherein: the switch S1 is a solid state switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322430339.2U CN220711352U (en) | 2023-09-07 | 2023-09-07 | Topological structure of power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322430339.2U CN220711352U (en) | 2023-09-07 | 2023-09-07 | Topological structure of power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220711352U true CN220711352U (en) | 2024-04-02 |
Family
ID=90452946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322430339.2U Active CN220711352U (en) | 2023-09-07 | 2023-09-07 | Topological structure of power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220711352U (en) |
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2023
- 2023-09-07 CN CN202322430339.2U patent/CN220711352U/en active Active
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