CN101887245B - Circuit control device - Google Patents

Circuit control device Download PDF

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Publication number
CN101887245B
CN101887245B CN2010102130209A CN201010213020A CN101887245B CN 101887245 B CN101887245 B CN 101887245B CN 2010102130209 A CN2010102130209 A CN 2010102130209A CN 201010213020 A CN201010213020 A CN 201010213020A CN 101887245 B CN101887245 B CN 101887245B
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CN
China
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end
described
circuit
control device
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CN2010102130209A
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Chinese (zh)
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CN101887245A (en
Inventor
曾建汝
秦宏武
首召兵
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深圳和而泰智能控制股份有限公司
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Publication of CN101887245A publication Critical patent/CN101887245A/en
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Publication of CN101887245B publication Critical patent/CN101887245B/en

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Abstract

The invention provides a circuit control device, which comprises keys (S1 and S2), an LED (LED1), a current limiting resistor (R1), a first end A of a voltage detection circuit formed by resistors (R2, R3 and R8) and a triode (Q1), and a second end B of the voltage detection circuit formed by resistors (R4, R5, R6 and R7) and a triode (Q2). The circuit control device of the invention has simple circuit structure, easy implementation, material cost reduction and strong reliability, and can be used under a specific occasion, such as an electric ion, greatly improves the usability and electric property.

Description

Circuit control device

Technical field

The present invention relates to a kind of circuit control device, particularly about the continuously adjustable circuit control device of a kind of power.

Background technology

Under some product requirement, can be because of the requirement on structural restriction, the electric property, the consideration on the cost of products or the like, cause single-chip microcomputer at the detection button, when control LED can't carry out the independent circuits design, this circuit arrangement can be good at finishing designing requirement.For example, show as Fig. 1, in steam type electric iron, steam oven, water tank, the water pump that draws water, gear indication, microcontroller chip single-chip microcomputer or the like all design in A end (electric iron base), and powerful steam operating key, continuously the steam operating key all designs at B with button pilot lamp, 220V heating chassis and holds in (electric iron handle), according to common circuit design, 2~4 meters connecting line needs 5~6 to be finished, and adopt the design of this circuit arrangement, only need 3 connecting lines to finish, greatly reduce material cost; On usability, because of this connecting line needs often to be converted into having many bends or curves in the middle of using,, cause connecting line too hard if core is too slightly too big, do not reach requirement on the usability; On electric property, because of connecting line in the middle of crooked and the process of reversing, connecting line quantity is too many, easily causes the connecting line of outermost radian to damage.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of circuit control device simple in structure.

The technical solution adopted for the present invention to solve the technical problems is: a kind of circuit control device is provided, it comprises button (S1, S2), light emitting diode (LED1), current-limiting resistance (R1), by resistance (R2, R3, R8) and the voltage detecting circuit first end A that forms of triode (Q1), by resistance (R4, R5, R6, R7), the voltage detecting circuit second end B that triode (Q2) is formed, described button (S1, S2) a end links to each other with this current-limiting resistance (R1) respectively, the other end links to each other with ground, described current-limiting resistance (R1) links to each other with an end of this light emitting diode (LED1), the other end of this light emitting diode (LED1) and this resistance (R2, R3, R4) common node links to each other, described resistance (R3) links to each other with the base stage of this triode (Q1), described resistance (R6) links to each other with the base stage of this triode (Q2), described resistance (R8) links to each other with the collector of this triode (Q1) and the emitter of triode (Q2) respectively, and described resistance (R7) links to each other with the collector of this triode (Q2) and the emitter of triode (Q1) respectively.

The scheme that the present invention solves further technical matters is: it comprises that further power unit and MCU detect control circuit, described voltage detecting circuit first end A and the voltage detecting circuit second end B detect control circuit with MCU respectively and link to each other, described power unit respectively with this button (S1, S2), light emitting diode and MCU detect control circuit and link to each other.

The scheme that the present invention solves further technical matters is: described power unit offers other each several part power supplys, and the earth terminal of this power unit and input power cord have a common port.

The scheme that the present invention solves further technical matters is: described MCU detects control circuit and detects whether respective keys moves and logic control is made in output load.

The scheme that the present invention solves further technical matters is: during no button down state, described triode (Q1) base voltage is greater than 4.7V, the voltage detecting circuit first end A output low level, described triode (Q2) base voltage is greater than 0.8V, the voltage detecting circuit second end B output low level.

The scheme that the present invention solves further technical matters is: when pushing button (S1) state, light emitting diode (LED1) is lighted, described triode (Q1) base voltage is at 1.7~3.5V, the voltage detecting circuit first end A exports high level, described triode (Q2) base voltage is less than 0.5V, and the voltage detecting circuit second end B exports high level.

The scheme that the present invention solves further technical matters is: when pushing button (S2) state, light emitting diode (LED1) is lighted, described triode (Q1) base voltage is less than 4.3V, the voltage detecting circuit first end A exports high level, described triode (Q2) base voltage is greater than 0.8V, the voltage detecting circuit second end B output low level.

The scheme that the present invention solves further technical matters is: described button (S1, S2) all during down state, light by light emitting diode (LED1).

Compared to prior art, circuit control device circuit structure of the present invention is simple, realizes easily, has reduced material cost, uses under the specific occasion, as electric iron, has improved usability and electric property greatly, and good reliability.

Description of drawings

Fig. 1 is the principle schematic of a kind of circuit control device of the prior art.

Fig. 2 is the circuit principle structure synoptic diagram of circuit control device of the present invention.

Fig. 3 is the circuit principle structure synoptic diagram that is applied to electric iron of circuit control device of the present invention.

Embodiment

As Fig. 2 and shown in Figure 3, the invention provides a kind of circuit control device, it comprises button (S1, S2), light emitting diode (LED1), current-limiting resistance (R1), the voltage detecting circuit first end A that forms by resistance (R2, R3, R8) and triode (Q1), by resistance (R4, R5, R6, R7), the voltage detecting circuit second end B that triode (Q2) is formed, power unit and MCU detect control circuit.Described power unit comprises electric capacity (C1, C2, C3, C4), resistance (R9, R10, R11, R12) and diode (D1, D2, Z1).

Described voltage detecting circuit first end A and the voltage detecting circuit second end B detect control circuit with MCU respectively and link to each other.Described power unit respectively with this button (S1, S2), light emitting diode and MCU detect control circuit and link to each other.

One end of described button (S1, S2) links to each other with this current-limiting resistance (R1) respectively, and the other end links to each other with ground.Described current-limiting resistance (R1) links to each other with an end of this light emitting diode (LED1), and (R2, R3, common node R4) links to each other for the other end of this light emitting diode (LED1) and this resistance.Described resistance (R3) links to each other with the base stage of this triode (Q1), and described resistance (R6) links to each other with the base stage of this triode (Q2).The button output logic as shown in Figure 1,1 for output+5V, 0 is output 0V, so that MCU detection control circuit correctly detects; Light emitting diode (LED1) is lighted when pushing button S1, S2.

Described resistance (R8) links to each other with the collector of this triode (Q1) and the emitter of triode (Q2) respectively.Described resistance (R7) links to each other with the collector of this triode (Q2) and the emitter of triode (Q1) respectively.

Below be applied to electric iron with this circuit control device its course of work be described: described power unit offers other each several part power supplys so that operate as normal, and requirement is that the ground of power supply has a common port with input power supply AC line; MCU detects control circuit and detects whether respective keys moves and logic control is made in output load; Button S1 and the corresponding electric iron keypress function of S2 difference, whether LED 1 indication respective keys moves, and current-limiting resistance (R1) is used for producing different voltage drops when pressing different button (S1 or S2), outputs to the amplifier inlet and judges.

Adjust relevant parameter, make to obtain:

1, during no button down state:

The Q1 base voltage is: [R2/ (R2+R4+R5)] * 5V>4.7V makes triode Q1 be in cut-off state, and R8 is drop-down, and A holds output low level;

The Q2 base voltage is: [R5/ (R2+R4+R5)] * 5V>0.8V makes triode Q2 be in conducting state, and B holds output low level;

When 2, pressing the S1 state, LED1 lights:

Because the decision of light emitting diode characteristic, the Q1 base voltage makes triode Q1 be in conducting state about 1.7~3.5V, A end output high level;

The Q2 base voltage is: [R5/ (R4+R5)] * (1.7~3.5) V<0.5V, and make triode Q2 be in cut-off state, draw B end output high level on the R7;

When 3, pressing the S2 state, LED1 lights: (VR1 is the R1 both end voltage)

The Q1 base voltage is: (1.7~3.5) V+VR1<4.3V makes triode Q1 be in conducting state, A end output high level;

The Q2 base voltage is: [R5/ (R4+R5)] * [(1.7~3.5) V+VR1]>0.8V makes triode Q2 be in conducting state, and B holds output low level;

Consistent when pressing the S1 state together when 4, S1 is with the equal down state of S2, LED1 lights.

By above logic output, make MCU detect control circuit and normally detect the corresponding function button, make interrelated logic control.

Circuit control device circuit structure of the present invention is simple, realizes easily, has reduced material cost, uses under the specific occasion, as electric iron, has improved usability and electric property greatly, and good reliability.

Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the technician of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (8)

1. circuit control device, it is characterized in that: it comprises button S1, S2, LED 1, current-limiting resistance R1, by resistance R 2, R3, the voltage detecting circuit first end A that R8 and triode Q1 form, by resistance R 4, R5, R6, R7, the voltage detecting circuit second end B that triode Q2 forms, described button S1, the end of S2 links to each other with this current-limiting resistance R1 respectively, the other end links to each other with ground, described current-limiting resistance R1 links to each other with an end of this LED 1, the other end of this LED 1 and this resistance R 2, R3, the common node of R4 links to each other, and described resistance R 3 links to each other with the base stage of this triode Q1, and described resistance R 6 links to each other with the base stage of this triode Q2, described resistance R 8 links to each other with the collector of this triode Q1 and the emitter of triode Q2 respectively, and described resistance R 7 links to each other with the collector of this triode Q2 and the emitter of triode Q1 respectively.
2. circuit control device according to claim 1, it is characterized in that: it comprises that further power unit and MCU detect control circuit, described voltage detecting circuit first end A and the voltage detecting circuit second end B detect control circuit with MCU respectively and link to each other, described power unit respectively with this button S1, S2, light emitting diode and MCU detect control circuit and link to each other.
3. circuit control device according to claim 2 is characterized in that: described power unit offers other each several part power supplys, and the earth terminal of this power unit and input power cord have a common port.
4. circuit control device according to claim 3 is characterized in that: described MCU detects control circuit and detects whether respective keys moves and logic control is made in output load.
5. circuit control device according to claim 1, it is characterized in that: during no button down state, described triode Q1 base voltage is greater than 4.7V, the voltage detecting circuit first end A output low level, described triode Q2 base voltage is greater than 0.8V, the voltage detecting circuit second end B output low level.
6. circuit control device according to claim 1, it is characterized in that: when pushing button the S1 state, LED 1 is lighted, described triode Q1 base voltage is at 1.7~3.5V, the voltage detecting circuit first end A exports high level, described triode Q2 base voltage is less than 0.5V, and the voltage detecting circuit second end B exports high level.
7. circuit control device according to claim 6, it is characterized in that: when pushing button the S2 state, LED 1 is lighted, described triode Q1 base voltage is less than 4.3V, the voltage detecting circuit first end A exports high level, described triode Q2 base voltage is greater than 0.8V, the voltage detecting circuit second end B output low level.
8. circuit control device according to claim 1 is characterized in that: described button S1, during the equal down state of S2, LED 1 is lighted.
CN2010102130209A 2010-06-29 2010-06-29 Circuit control device CN101887245B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102130209A CN101887245B (en) 2010-06-29 2010-06-29 Circuit control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102130209A CN101887245B (en) 2010-06-29 2010-06-29 Circuit control device

Publications (2)

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CN101887245A CN101887245A (en) 2010-11-17
CN101887245B true CN101887245B (en) 2011-12-28

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Application Number Title Priority Date Filing Date
CN2010102130209A CN101887245B (en) 2010-06-29 2010-06-29 Circuit control device

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4158176B2 (en) * 2005-02-28 2008-10-01 三菱電機株式会社 Electric load current control device
CN2781427Y (en) * 2005-05-08 2006-05-17 王卫红 Control circuit device of kitchen ventilator
US7756812B2 (en) * 2005-09-22 2010-07-13 Eastman Kodak Company Adaptive input-cell circuitry useful in configurable electronic controllers
CN100416435C (en) * 2006-03-16 2008-09-03 康佳集团股份有限公司 Apparatus for realizing telecontrolled cut-of ac. power-supply and method thereof

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