CN1540852A - Output control circuit - Google Patents
Output control circuit Download PDFInfo
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- CN1540852A CN1540852A CNA031233600A CN03123360A CN1540852A CN 1540852 A CN1540852 A CN 1540852A CN A031233600 A CNA031233600 A CN A031233600A CN 03123360 A CN03123360 A CN 03123360A CN 1540852 A CN1540852 A CN 1540852A
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Abstract
Output control circuit includes plug and electrical appliances connected to power source. Output control circuit is setup at appliances of using two kinds of currents. An output control device of output control circuit includes switch unit, transformer, control unit, and relay. According allowable value of input current, switch unit switches input current of electrical appliance. According to switched input current, transformer adjusts output current. Control unit monitors switching operation of switch unit. According to different current value, two relays connect input end to primary end of transformer. Under control of control unit, only one of two relays is in operation so as to decide current being input to primary end of transformer. According to need of electrical appliances, user can select input current for electrical appliances.
Description
Technical field
The present invention relates to the output control circuit field.
Background technology
Below, the output control circuit under the conventional art is described.
With the U.S. is example, and the permission electric current of this state in most cases is 120V usually, 20A.But still be suitable for 120V, 15A specification in the old building of part.Thereby the permission electric current is 120V, in the old building of 15A, if use 120V, and the voltage of 20A, during electric current, might breaking.Therefore, in these old buildings, generally can not use electrical equipment more than the 1800W.Therefore, the manufacturer presses 120V to power output, and 15A is a benchmark, adjusts to 1800W.
Thereby, under the uncertain situation of importing when using product of electric current,, therefore, can only be that benchmark is produced product with the smaller power because can not predict client's environment for use.Thereby can use the family of higher-wattage also can only make electrical appliance with low current equally, thereby, can't bring into play the peak power output of electrical equipment.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of output control circuit, after output control circuit is pressed and allowed the current switching input current, to the electrical equipment supply of current.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: output control circuit comprises latch and the electrical equipment that inserts power supply, output control circuit is located on the electrical equipment that can use two kinds of electric currents, and the output-controlling device of output control circuit comprises switching device shifter, transformer, control device, relay; Switching device shifter is pressed the permissible value of input current, switches the input current of electrical equipment; Transformer is pressed the input current that switching device shifter switches, and adjusts output current; Control device can be monitored switching operation of switching device; Two relays are connected by different separately current values between 1 end of power input and transformer; Under the control of control device, in two relays, have only a relay job, determine 1 end of transformer to go up the electric current of input with this.
The invention has the beneficial effects as follows: the permission electric current of supplying in each family not simultaneously, the client can be by the power status of its family, selects the input current of electrical equipment.Thereby, can make electrical appliance by only condition.
Therefore, when using electrical equipment provided by the invention, can make this electrical equipment output and the corresponding power rank of input current value, the client can break away from the restriction of power output.In addition, when making electrical appliance, ground setting power rank can be allowed a choice.Therefore, when selecting high current power rank, can finish culinary art fast, improve client's satisfaction.
Description of drawings
Fig. 1 is in order to switch the switching device shifter that the product input current is established.
Fig. 2 is an output-controlling device provided by the invention, the circuit diagram that carries out work according to the signal from switching device shifter input.
Fig. 3 for microcomputer provided by the invention in order to control output-controlling device, the state diagram that the electric current that switches is detected.
Fig. 4 is an output control circuit provided by the invention, presses the control procedure flow chart of input current work.
Accompanying drawing critical piece remarks
10: microcomputer SW1, SW2: the 1st, 2 switch
T: high-tension transformer RY1, RY2: the 1st, 2 relay
C: latch
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail: Fig. 1 is in order to switch the switching device shifter that the product input current is established.
As shown in the figure, switching device shifter is located at the outside or the inboard of microwave oven side casings, can select to switch behind the electric current by power status.Can set input current by switching device shifter.That is, as shown in the figure, when switch was upwards switched, the electric current of circulation was 20A, and when switch switched downwards, the electric current of circulation was 15A.
As mentioned above, utilize switching device shifter to switch the size of input current after, microcomputer is according to the signal that receives from this device, the control output state, distinguish the culinary art data that microcomputer inside possesses after, allow associated components show culinary art data after distinguishing.
Output control circuit to as above working is described as follows.
Fig. 2 is an output-controlling device provided by the invention, according to the circuit diagram of the signal work of importing from switching device shifter.
At first, the connection status to each electronic device in the circuit describes.Energized on the 1st end of latch C and the 2nd end.And the 1st end and the 1st switch SW 1, the 2 end are connected with the 2nd switch SW 2.
The 1st switch SW 1 is connected for No. 1 with 1 end of high-tension transformer T, and the 2nd switch SW 2 is connected with the 2nd relay R Y2 with the 1st relay R Y1.The 1st relay R Y1 and the 2nd relay R Y2 parallel connection.When the current value of importing in the electrical equipment is 15A, the 1st relay R Y1 work, and the current value of input is when being 20A, the 2nd relay R Y2 work.
During the 1st relay R Y1 or the 2nd relay R Y2 work, the electric current that is equivalent to the relay rated current enters No. 2,1 end of high-tension transformer T.The power supply that 1 end of high-tension transformer T is gone up input is sent on 2 ends of high-tension transformer T.
The as above output control circuit of Gou Chenging, its control procedure is as follows.
Switching device shifter is switched to the below, and the electric current of setting to the electrical equipment input is 15A.At this moment, as shown in Figure 2, the electric current from latch C input makes the 1st switch SW 1 and the 2nd switch SW 2 closures.The 1st relay R Y1 connects after cut-offfing folding, and the electric current of 15A is by on the high-tension transformer T.On the contrary, the 2nd relay R Y2 is disconnected.
Thereby, after the 1st switch SW 1 and the 2nd switch SW 2 closures, be input to the power supply in the circuit, be input to No. 1,1 end of high-tension transformer T by the 1st switch SW 1, and be input to No. 2,2 ends of high-tension transformer T by the 1st relay R Y1.The power supply of connecting is sent among the high-tension transformer T, and will be imported in the operating circuit by the power supply of high-tension transformer T.
In addition, switching device shifter is switched to the top, the electric current of setting to the electrical equipment input is 20A.At this moment, as shown in Figure 2, the 20A electric current from latch C input makes the 1st switch SW 1 and the 2nd switch SW 2 closures.The 2nd relay R Y2 is switched on after cut-offfing folding, and the electric current of 20A is by on the high-tension transformer T.On the contrary, the 1st relay R Y1 is disconnected.Active volume number of wire turns when at this moment, the active volume number of wire turns of 1 end of high-tension transformer is 15A less than circulating current.According to the electricity formula as can be known, at this moment, the voltage of 2 ends of high-tension transformer can rise.
As mentioned above, behind the big or small switch current with electric current, electric current is input in the circuit.Mechanism to microcomputer 10 monitoring actions is described as follows.
Fig. 3 is that microcomputer 10 provided by the invention is in order to control output-controlling device, to the electric current that switches, the state diagram that detects.
As Fig. 1, shown in Figure 2, the operation switching device shifter, behind the input current of setting electrical equipment, microcomputer 10 input current value monitor signals.Microcomputer 10 according to the monitoring current value control the 1st, 2 relay (RY1, RY2).Simultaneously, microcomputer 10 makes relative assembly be shown to the client to executable culinary art data by the current value of input.
Control procedure to switching device shifter and output-controlling device is described as follows.
Fig. 4 is an output control circuit provided by the invention, presses the control procedure flow chart of input current work.
The power specification of microwave oven is 120V, 15A and 120V, two kinds of specifications of 20A.The client according to the electric current of power supply restriction select a kind of in the specification.That is, as shown in Figure 1, press power specification, select power specification by switching device shifter.Then, the client gives the microwave oven energized.At this moment, by the specification that the client sets in advance, power to microwave oven.
At this moment,, behind microcomputer 10 monitoring states, as shown in Figure 2, allow the 1st relay R Y1 connect, allow the 2nd relay R Y2 disconnect (the 120th stage) if the current specification that the client selects by switching device shifter is 15A (the 110th stage).
At this moment, 1 termination of high-tension transformer T is led to 120V, the power supply of 15A.Power supply is input in the circuit, and microcomputer 10 makes relative assembly show (the 130th stage) to executable culinary art data by the power specification of input simultaneously.
Then, the client is with reference to the culinary art data that show, the cooking method that selection will be carried out is imported culinary art and carried out signal (the 140th stage).Culinary art is carried out signal and is passed in the microcomputer 10, and microcomputer 10 is controlled according to signal, allows magnetron or electric heater do and adds hot work (the 150th stage).
In addition,, behind microcomputer 10 monitoring states, as shown in Figure 2, allow the 2nd relay R Y2 connect, allow the 1st relay R Y1 disconnect (the 160th stage) if the current specification that the 110th stage was set is 20A.
At this moment, 1 termination of high-tension transformer T is led to 120V, the power supply of 20A.Power supply is input in the circuit, and microcomputer 10 makes relative assembly show (the 170th stage) to executable culinary art data by the power specification of input simultaneously.
Then, the client is with reference to the culinary art data that show, the cooking method that selection will be carried out is imported culinary art and carried out signal (the 140th stage).Culinary art is carried out signal and is passed in the microcomputer 10, and microcomputer 10 is controlled according to signal, allows magnetron or electric heater do and adds hot work (the 150th stage).
Among the present invention, power specification is set at 120V, 15A and 120V, two kinds of 20A.But this is an embodiment of example with the U.S. just.The present invention not only is applicable to the power status of the U.S., is applicable to also that any voltage is identical and allows in the different power status of electric current.
In addition, among the present invention, be that example is illustrated output control circuit with the microwave oven.This also is an embodiment.This switching device shifter can be applied in all household electrical appliances, drives output control circuit by the current value that switches.
In sum, the present invention is the invention basic thought with following content.By the current specification switch current, press the action of the current value control relay that switches, export accordingly with each current specification and can carry out work.
Claims (1)
1. output control circuit, comprise the latch and the electrical equipment that insert power supply, it is characterized in that: output control circuit is located on the electrical equipment that can use two kinds of electric currents, and the output-controlling device of output control circuit comprises switching device shifter, transformer, control device, relay; Switching device shifter is pressed the permissible value of input current, switches the input current of electrical equipment; Transformer is pressed the input current that switching device shifter switches, and adjusts output current; Control device can be monitored switching operation of switching device; Two relays are connected by different separately current values between 1 end of power input and transformer; Under the control of control device, in two relays, have only a relay job, determine 1 end of transformer to go up the electric current of input with this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031233600A CN1540852A (en) | 2003-04-25 | 2003-04-25 | Output control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031233600A CN1540852A (en) | 2003-04-25 | 2003-04-25 | Output control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1540852A true CN1540852A (en) | 2004-10-27 |
Family
ID=34321292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031233600A Pending CN1540852A (en) | 2003-04-25 | 2003-04-25 | Output control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1540852A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427677A (en) * | 2012-05-14 | 2013-12-04 | Lg伊诺特有限公司 | Power supply |
-
2003
- 2003-04-25 CN CNA031233600A patent/CN1540852A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427677A (en) * | 2012-05-14 | 2013-12-04 | Lg伊诺特有限公司 | Power supply |
| CN103427677B (en) * | 2012-05-14 | 2016-12-28 | Lg伊诺特有限公司 | Power module |
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