CN204761309U - Power switching over system - Google Patents
Power switching over system Download PDFInfo
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- CN204761309U CN204761309U CN201520408212.3U CN201520408212U CN204761309U CN 204761309 U CN204761309 U CN 204761309U CN 201520408212 U CN201520408212 U CN 201520408212U CN 204761309 U CN204761309 U CN 204761309U
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Abstract
The utility model belongs to the technical field of the power, especially, relate to a power switching over system, including power switching circuit, current foldback circuit, clock circuit, current sampling circuit, hall detection circuitry, power switching circuit connects current foldback circuit, current foldback circuit connects the clock circuit, current sampling circuit and clock circuit connection, hall detection circuitry and clock circuit connection. The utility model discloses not using power transformer among the power switching circuit, making its weight loss, the power consumption reduces, greatly reduced manufacturing cost, connect current foldback circuit's design with power switching circuit, adopt switch operating condition for circuit work efficiency is high, and the circuit protection measure is perfect, and the spoilage is low, used components and parts adopt common components and parts, its low price, and low in manufacturing cost, the reliability is high, and the maintenance is easy, and the maintenance is simple.
Description
Technical field
The utility model belongs to power technique fields, particularly relates to a kind of power conversion system.
Background technology
Electromagnetic induction heater, flows through high-frequency current in heater coil, makes eddy generation in close to the metal heating object of coil configuration, by the resistance heating of heating object self.Because can control the temperature of heating object, fail safe is high, so cognitive as new thermal source.
But the power conversion system in current electromagnetic induction heating system, uses power transformer, has that volume is large and heavier, big energy-consuming, the incomplete problem of circuit protection.
Summary of the invention
The utility model provides a kind of power conversion system, and to solve in above-mentioned background technology, the power conversion system in current electromagnetic induction heating system, uses power transformer, have that volume is large and heavier, big energy-consuming, the incomplete problem of circuit protection.
The technical problem that the utility model solves realizes by the following technical solutions: the utility model provides a kind of power conversion system; it is characterized in that: comprise power-switching circuit, current foldback circuit, clock circuit, current sampling circuit, Hall testing circuit; described power-switching circuit connects current foldback circuit; described current foldback circuit connects clock circuit; described current sampling circuit is connected with clock circuit, and described Hall testing circuit is connected with clock circuit.
Described power-switching circuit comprises input power J1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, there is polar capacitor C21, there is polar capacitor C22, there is polar capacitor C23, there is polar capacitor C24, voltage-stabiliser tube D39, diode D42, diode D41, chip U2, chip U1, chip U3, the pin 1 of electric bridge D38, described input power J1 connects one end of electric capacity C1, the pin 2 of electric bridge D38, its pin 2 connects the other end of electric capacity C1, one end of electric capacity C2, there is the positive pole of polar capacitor C21, one end of electric capacity C3, there is the negative pole of polar capacitor C22, the pin 2 of chip U2, one end of electric capacity C5, the anode of diode D42, there is the negative pole of polar capacitor C23, the pin 2 of chip U3, one end of electric capacity C6 and all ground connection, its pin 3 connects the other end of electric capacity C2, the pin 3 of electric bridge D38, the pin 4 of described electric bridge D38 connects the pin 2 of chip U1, the other end of electric capacity C3, there is the negative pole of polar capacitor C21, the anode of voltage-stabiliser tube D39, its pin 1 is connected to the positive pole of polar capacitor C22, the negative electrode of diode D40, the pin 1 of chip U2, described chip U2 selects the chip of LM7812 model, and its pin 3 connects one end of electric capacity C5, the anode of diode D40, the negative electrode of diode D42, there is the positive pole of polar capacitor C23, the pin 1 of chip U3 and all meet voltage+12V, described chip U1 selects the chip of LM7812 model, and its pin 1 connects one end of electric capacity C4, the negative electrode of diode D41, have the positive pole of polar capacitor C24 and all ground connection, its pin 3 connects the other end of electric capacity C4, the negative electrode of voltage-stabiliser tube D39, the anode of diode D41, there is the negative pole of polar capacitor C24 and all connect-12V voltage.
Described current foldback circuit comprises chip IC 1, resistance R68, Display panel end interface J6; described chip IC 1 selects the chip of LM393 model; one end of its pin 1 connecting resistance R68, the pin 3 of Display panel end interface J6; its pin 3 connects the pin 1 of input power J1; its pin 4 ground connection; its pin 8 meets voltage+12V, another termination voltage+12V of described resistance R68, and the pin 1 of described Display panel end interface J6 meets voltage+12V.
Described clock circuit comprises chip IC 6, and described chip IC 6 selects the chip of LM555 model, and its pin 8 connects+12V voltage, and its pin 4 connects-12V voltage, and its pin 1 connects the pin 7 of chip IC 1.
The beneficial effects of the utility model are:
1, do not use power transformer in the utility model power-switching circuit, make its weight saving, power consumption reduces, and greatly reduces manufacturing cost.
2, power-switching circuit is connected the design of current foldback circuit by the utility model, and adopt switch working state, make circuit working efficiency high, protect measure is perfect, and spoilage is low.
3, the utility model components and parts used adopt common components and parts, its low price, low cost of manufacture, and reliability is high, and easily, maintenance is simple in maintenance.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the circuit theory diagrams of power-switching circuit of the present utility model;
Fig. 3 is the circuit theory diagrams of current foldback circuit of the present utility model;
Fig. 4 is the circuit theory diagrams of clock circuit of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment:
The present embodiment comprises: power-switching circuit, current foldback circuit, clock circuit, current sampling circuit, Hall testing circuit; power-switching circuit connects current foldback circuit; current foldback circuit connects clock circuit; current sampling circuit is connected with clock circuit; Hall testing circuit is connected with clock circuit, as shown in Figure 1.
As shown in Figure 2: power-switching circuit comprises input power J1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, there is polar capacitor C21, there is polar capacitor C22, there is polar capacitor C23, there is polar capacitor C24, voltage-stabiliser tube D39, diode D42, diode D41, chip U2, chip U1, chip U3, electric bridge D38, the pin 1 of input power J1 connects one end of electric capacity C1, the pin 2 of electric bridge D38, its pin 2 connects the other end of electric capacity C1, one end of electric capacity C2, there is the positive pole of polar capacitor C21, one end of electric capacity C3, there is the negative pole of polar capacitor C22, the pin 2 of chip U2, one end of electric capacity C5, the anode of diode D42, there is the negative pole of polar capacitor C23, the pin 2 of chip U3, one end of electric capacity C6 and all ground connection, its pin 3 connects the other end of electric capacity C2, the pin 3 of electric bridge D38, the pin 4 of electric bridge D38 connects the pin 2 of chip U1, the other end of electric capacity C3, there is the negative pole of polar capacitor C21, the anode of voltage-stabiliser tube D39, its pin 1 is connected to the positive pole of polar capacitor C22, the negative electrode of diode D40, the pin 1 of chip U2, chip U2 selects the chip of LM7812 model, and its pin 3 connects one end of electric capacity C5, the anode of diode D40, the negative electrode of diode D42, there is the positive pole of polar capacitor C23, the pin 1 of chip U3 and all meet voltage+12V, chip U1 selects the chip of LM7812 model, and its pin 1 connects one end of electric capacity C4, the negative electrode of diode D41, have the positive pole of polar capacitor C24 and all ground connection, its pin 3 connects the other end of electric capacity C4, the negative electrode of voltage-stabiliser tube D39, the anode of diode D41, there is the negative pole of polar capacitor C24 and all connect-12V voltage.
As shown in Figure 3: current foldback circuit comprises chip IC 1, resistance R68, Display panel end interface J6; chip IC 1 selects the chip of LM393 model; one end of its pin 1 connecting resistance R68, the pin 3 of Display panel end interface J6; its pin 3 connects the pin 1 of input power J1; its pin 4 ground connection; its pin 8 meets voltage+12V, and another termination voltage+12V of resistance R68, the pin 1 of Display panel end interface J6 meets voltage+12V.
As shown in Figure 4: clock circuit comprises chip IC 6, chip IC 6 selects the chip of LM555 model, and its pin 8 connects+12V voltage, and its pin 4 connects-12V voltage, and its pin 1 connects the pin 7 of chip IC 1.
Do not use power transformer in the utility model power-switching circuit, make its weight saving, power consumption reduces, and greatly reduces manufacturing cost; Power-switching circuit is connected the design of current foldback circuit, adopt switch working state, make circuit working efficiency high, protect measure is perfect, and spoilage is low; Components and parts used adopt common components and parts, its low price, low cost of manufacture, and reliability is high, and easily, maintenance is simple in maintenance.
Utilize the technical solution of the utility model, or those skilled in the art being under the inspiration of technical solutions of the utility model, designing similar technical scheme, and reach above-mentioned technique effect, is all fall into protection range of the present utility model.
Claims (4)
1. a power conversion system; it is characterized in that: comprise power-switching circuit, current foldback circuit, clock circuit, current sampling circuit, Hall testing circuit; described power-switching circuit connects current foldback circuit; described current foldback circuit connects clock circuit; described current sampling circuit is connected with clock circuit, and described Hall testing circuit is connected with clock circuit.
2. a kind of power conversion system according to claim 1, is characterized in that: described power-switching circuit comprises input power J1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, there is polar capacitor C21, there is polar capacitor C22, there is polar capacitor C23, there is polar capacitor C24, voltage-stabiliser tube D39, diode D42, diode D41, chip U2, chip U1, chip U3, the pin 1 of electric bridge D38, described input power J1 connects one end of electric capacity C1, the pin 2 of electric bridge D38, its pin 2 connects the other end of electric capacity C1, one end of electric capacity C2, there is the positive pole of polar capacitor C21, one end of electric capacity C3, there is the negative pole of polar capacitor C22, the pin 2 of chip U2, one end of electric capacity C5, the anode of diode D42, there is the negative pole of polar capacitor C23, the pin 2 of chip U3, one end of electric capacity C6 and all ground connection, its pin 3 connects the other end of electric capacity C2, the pin 3 of electric bridge D38, the pin 4 of described electric bridge D38 connects the pin 2 of chip U1, the other end of electric capacity C3, there is the negative pole of polar capacitor C21, the anode of voltage-stabiliser tube D39, its pin 1 is connected to the positive pole of polar capacitor C22, the negative electrode of diode D40, the pin 1 of chip U2, described chip U2 selects the chip of LM7812 model, and its pin 3 connects one end of electric capacity C5, the anode of diode D40, the negative electrode of diode D42, there is the positive pole of polar capacitor C23, the pin 1 of chip U3 and all meet voltage+12V, described chip U1 selects the chip of LM7812 model, and its pin 1 connects one end of electric capacity C4, the negative electrode of diode D41, have the positive pole of polar capacitor C24 and all ground connection, its pin 3 connects the other end of electric capacity C4, the negative electrode of voltage-stabiliser tube D39, the anode of diode D41, there is the negative pole of polar capacitor C24 and all connect-12V voltage.
3. a kind of power conversion system according to claim 1; it is characterized in that: described current foldback circuit comprises chip IC 1, resistance R68, Display panel end interface J6; described chip IC 1 selects the chip of LM393 model; one end of its pin 1 connecting resistance R68, the pin 3 of Display panel end interface J6; its pin 3 connects the pin 1 of input power J1; its pin 4 ground connection; its pin 8 meets voltage+12V; another termination voltage+12V of described resistance R68, the pin 1 of described Display panel end interface J6 meets voltage+12V.
4. a kind of power conversion system according to claim 1, it is characterized in that: described clock circuit comprises chip IC 6, described chip IC 6 selects the chip of LM555 model, and its pin 8 connects+12V voltage, its pin 4 connects-12V voltage, and its pin 1 connects the pin 7 of chip IC 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520408212.3U CN204761309U (en) | 2015-06-15 | 2015-06-15 | Power switching over system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520408212.3U CN204761309U (en) | 2015-06-15 | 2015-06-15 | Power switching over system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204761309U true CN204761309U (en) | 2015-11-11 |
Family
ID=54475977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520408212.3U Expired - Fee Related CN204761309U (en) | 2015-06-15 | 2015-06-15 | Power switching over system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204761309U (en) |
-
2015
- 2015-06-15 CN CN201520408212.3U patent/CN204761309U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20160615 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |