CN102349801B - Intelligent coffee maker circuit without standby power consumption - Google Patents
Intelligent coffee maker circuit without standby power consumption Download PDFInfo
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- CN102349801B CN102349801B CN201110267454.1A CN201110267454A CN102349801B CN 102349801 B CN102349801 B CN 102349801B CN 201110267454 A CN201110267454 A CN 201110267454A CN 102349801 B CN102349801 B CN 102349801B
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Abstract
The invention relates to an intelligent coffee maker circuit without standby power consumption, which comprises micro control unit (MCU) control circuit 3, a circuit switch control circuit 4, a switching power supply circuit 1 and an electromagnetic interference (EMI) absorbing circuit 2. The switching power supply circuit 1 comprises a bidirectional thyristor T1. The two main terminals of the bidirectional thyristor T1 are serially connected with an alternating-current (AC) power supply circuit. When a coffee maker is in a power-on state and does not work, the bidirectional thyristor T1 can open the switching power supply circuit 1 and cut off the power of all components on the MCU control circuit 3 to enable switching power supply circuit 1 and the components to be not powered on when the coffee maker is in a power-on static state. The intelligent coffee maker circuit without the standby power consumption has the advantages of simple structure, no standby power consumption, long service life and the like. When the coffee maker is in a standby state, by directly opening the switching power supply circuit 1 through the bidirectional thyristor T1, the switching power supply circuit 1 is not powered on when the coffee maker is in the power-on static state, the power of all components on the circuit switch control circuit 4 and the MCU control circuit 3 are cut off, the electric energy consumed by the components is reduced, the power consumed by the coffee maker in the standby state is zero and therefore the optimum energy-saving and environment-friendly effect is achieved.
Description
Technical field
The present invention relates to a kind of readiness control circuit of household electric appliance, especially relate to a kind of Intelligent coffee maker circuit of no standby power.
Background technology
At present, energy growing tension, the stand-by power consumption of power supply is concerning energy-conserving and environment-protective, and many countries and regions are to enforce the EUP standard that stand-by power consumption is less than 0.5W, and even higher zero-power is lower than the ERP standard of 0.3W.Existing many small household electrical appliances have idle function, when for example the domestic electric appliance such as coffee machine, fruit juice mixer, electronic kettle, electric iron, electric oven, milk-boiling dev is plugged in wall socket, even if these products are idle, but because in fact this equipment be in holding state, still consume electric energy.Along with the development of the technology innovation replacement and networking, appliance manufacturers develops (as: remote control switch, continue numerical monitor, time switch, intelligent switch etc.) various idle function, these New function, providing for user greatly easily simultaneously, also result in a large amount of energy wastes.Oxonian family's standby energy consumption investigation display, family's standby energy consumption takies 8% of power consumption total amount, and the investigation of the Organization of Economy and Cooperation Development (OECD) more shows, stand-by power consumption has accounted for 3 ~ 13% of home-use electricity in its member state.Reduce stand-by power consumption and become an energy-conservation important directions of electric equipment products.
Although prior art can reduce stand-by power consumption, but because circuit is complicated, components and parts are more, general in non-loaded shutdown or standby, during all static state, charged components and parts can consume electric energy, so current existing technology can only accomplish below 0.5W, if more at circuit components, circuit is compared with the standard or the ERP standard that just do not reach higher green energy conservation under complicated situation.
Summary of the invention
The object of the invention is to provide a kind of Intelligent coffee maker circuit of no standby power.Complicated with the circuit solved existing for prior art, when components and parts are more, standby clear wasted work rate does not reach the technical problems such as the standard of zero-power.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: the Intelligent coffee maker circuit of no standby power, comprise MCU control circuit 3, contactor control circuit 4, switching power circuit 1, EMI absorbing circuit 2, described switching power circuit 1 comprises bidirectional triode thyristor T1, and two main terminals of this bidirectional triode thyristor T1 are connected in AC power supply circuits; Described bidirectional triode thyristor T1 is when coffee machine works in the energized state, by cut-off switch power circuit 1, and the components and parts power supply in all MCU control circuit 3, make its no power under energising quiescent conditions.
Operation principle of the present invention is: coffee machine is when POWER KEY key static state is touched in the not control that is energized, the I/O port PIN KEY POWER of MCU control circuit 3 is input as high level always, now MCU is not triggered start, the I/O port PWR CTRL pin of MCU control circuit 3 is low level always, make triode Q1, diode D2 be all cut-off, do not have electric current to pass through to disconnect in circuit always; Controllable silicon T1 control end G pole does not have trigger current to be formed simultaneously, and this controllable silicon T1 is in cut-off state; The input pin of controllable silicon T1 and output pin not conducting, be directed at controllable silicon T1 and export to contactor control circuit 4 below, all circuit that MCU and controllable silicon thereof export are disconnected, electric current is not had to pass through, loop cannot be formed, not to be energized on this circuit components, and without power consumption, thus to reach zero consumption of non-loaded standby or shutdown electric energy.
As preferably, the I/O interface pin KEY1 of described MCU control circuit 3 connects with resistance R12 and is connected with MCU circuit, the pin KEY POWER of MCU control circuit 3 is connected with the negative electrode of diode D4 by resistance R10 with after electric capacity C4 parallel connection, the pin PWR CTRL of MCU control circuit 3 is connected with the base stage of triode Q1 by resistance R5, the colelctor electrode of triode Q1 is connected with MCU circuit, the emitter stage connecting to neutral current potential of triode Q1.
As preferably, described triode Q1 is the NPN type triode of high level conducting, low level cut-off.
As preferably, described switching power circuit 1 comprises fuse F1, piezo-resistance VDR1, electric capacity C1, resistance R3, R1, R2, and wherein piezo-resistance VDR1, electric capacity C1 are in parallel with resistance R1, R2 series circuit.
As preferably, described POWER KEY, diode D3, D2 are connected with the G level of bidirectional triode thyristor T1 by resistance R4, and the input pin of described bidirectional triode thyristor T1 controlled end is connected with electric main; Bidirectional triode thyristor T1 output pin is connected with inductor L1 by commutation diode D1, and the IN4007 that commutation diode D1 selects withstand voltage higher is to carry out rectification, and the inductance value of inductor L1 is 1.2mH, and saturation current is 350mA.
As preferably, described super capacitor C2 and C3 and inductor L1 forms " mouth " mode filter to meet the requirement of EMI circuit.
As preferably, output current is converted to voltage by resistance R9 and super capacitor C6 by described contactor control circuit 4, the feedback pin of LNK306P is being fed back to by resistance R10, wherein resistance R10 selects the precision of 4.3K Ω to be the measuring resistance of 1%, resistance R9 selects the precision of 2K Ω to be the measuring resistance of 1%, super capacitor C6 gets 10uF, and withstand voltage is 50V.
The present invention has the advantages such as structure is simple, no standby power, long service life, and the present invention is by a bidirectional triode thyristor when coffee machine is standby, and direct cut-off switch power circuit 1, makes its no power under energising static state.Under controllable silicon does not have conducting situation, components and parts power supply in contactor control circuit 4 and MCU control circuit 3 all disconnects, decrease the electric energy that components and parts consume, make the consumed power of coffee machine when standby be zero, thus reach best energy-conserving and environment-protective object.
Accompanying drawing explanation
Fig. 1 is the structural representation of circuit of the present invention.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is further described in detail.
Fig. 1 is the structural representation of circuit of the present invention.As shown in Figure 1, the Intelligent coffee maker circuit of no standby power, comprise MCU control circuit 3, contactor control circuit 4, switching power circuit 1, EMI absorbing circuit 2, wherein switching power circuit 1 comprises fuse F1, piezo-resistance VDR1, electric capacity C1, resistance R3, R1, R2 and bidirectional triode thyristor T1, wherein piezo-resistance VDR1, electric capacity C1 connect with resistance R3 again with after the parallel connection of resistance R1, R2 series circuit.Two main terminals of described bidirectional triode thyristor T1 are connected in AC power supply circuits, this bidirectional triode thyristor T1 is not when coffee machine works in the energized state, by cut-off switch power circuit 1, and the components and parts power supply in all MCU control circuit 3, make its no power under energising quiescent conditions.
In contactor control circuit 4, power output stage is made up of relevant components and parts such as LNK306P, works in Constant current output, is convenient to circuit working in stable state.Circuit utilizes the FB pin of LinkSwitch-TN temperature stabilization to provide accurate output current as a reference; By resistance R9 and super capacitor C6, output current is converted to voltage, the feedback pin of LNK306P is being fed back to by resistance R10, wherein resistance R10 selects the precision of 4.3K Ω to be the measuring resistance of 1%, resistance R9 selects the precision of 2K Ω to be the measuring resistance of 1%, super capacitor C6 gets 10uF, and withstand voltage is 50V.
The I/O interface pin KEY1 of described MCU control circuit 3 connects with resistance R12 and is connected with MCU circuit, the pin KEY POWER of MCU control circuit 3 is connected with the negative electrode of diode D4 by resistance R8 with after electric capacity C4 parallel connection, the pin PWR CTRL of MCU control circuit 3 is connected with the base stage of triode Q1 by resistance R5, the colelctor electrode of triode Q1 is connected with circuit, the emitter stage connecting to neutral current potential of triode Q1.Wherein triode Q1 is the NPN type triode of high level conducting, low level cut-off.POWER KEY, diode D3, D2 are connected with the G level of bidirectional triode thyristor T1 by resistance R4, and the input pin of described bidirectional triode thyristor T1 controlled end is connected with electric main; Bidirectional triode thyristor T1 output pin is connected with inductor L1 by commutation diode D1, and the IN4007 that commutation diode D1 selects withstand voltage higher is to carry out rectification, and the inductance value of inductor L1 is 1.2mH, and saturation current is 350mA.Super capacitor C2 and C3 and inductor L1 forms " mouth " mode filter to meet the requirement (can design according to the different demands of product for wave filter) of EMI circuit.
Operation principle: coffee machine is when POWER KEY key static state is touched in the not control that is energized, the I/O port PIN KEY POWER of MCU control circuit 3 is input as high level always, now MCU is not triggered start, the I/O port PWR CTRL pin of MCU control circuit is low level always, make triode Q1, diode D2 be all cut-off, be equivalent to disconnect always; Controllable silicon T1 does not have trigger current to be formed, so controllable silicon is in cut-off state due to control end G pole.The input pin of controllable silicon T1 and output pin not conducting, be equivalent to disconnect, be directed at controllable silicon T1 and export to contactor control circuit 1 below, all circuit that MCU control circuit 3 and controllable silicon thereof export are disconnected, energising, cannot not form loop, not be energized on this circuit components, and without power consumption, thus reach greatly be reduced in non-loaded standby or shutdown electric energy consumption.
The above, be only the preferred embodiments of the present invention, can not limit scope of the present invention with this, and the present invention also may be used in other similar electronic equipment and domestic electric appliance.
Claims (2)
1. the Intelligent coffee maker circuit of no standby power, comprise MCU control circuit (3), contactor control circuit (4), switching power circuit (1), EMI absorbing circuit (2), it is characterized in that, described switching power circuit (1) comprises bidirectional triode thyristor T1, and two main terminals of this bidirectional triode thyristor T1 are connected in AC power supply circuits; Described bidirectional triode thyristor T1 is when coffee machine works in the energized state, by cut-off switch power circuit (1), and the components and parts power supply in all MCU control circuit (3), make its no power under energising quiescent conditions;
The I/O interface pin KEY1 of described MCU control circuit (3) connects with resistance R12 and is connected with MCU circuit, the pin KEY POWER of MCU control circuit (3) is connected with the negative electrode of diode D4 by resistance R10 with after electric capacity C4 parallel connection, the pin PWR CTRL of MCU control circuit (3) is connected with the base stage of triode Q1 by resistance R5, the colelctor electrode of triode Q1 is connected with MCU circuit, the emitter stage connecting to neutral current potential of triode Q1;
When POWER KEY key static state is touched in the not control that is energized, the I/O port PIN KEY POWER of MCU control circuit (3) is input as high level always, and now MCU is not triggered start, and the I/O port PWR CTRL pin of MCU control circuit is low level always, triode Q1 is ended, is equivalent to disconnect always; Controllable silicon T1 does not have trigger current to be formed, so controllable silicon is in cut-off state due to control end G pole; The input pin of controllable silicon T1 and output pin not conducting, be equivalent to disconnect, be directed at controllable silicon T1 and export to contactor control circuit (4) below, all circuit that MCU control circuit (3) and controllable silicon thereof export are disconnected, not energising, cannot loop be formed, not be energized on this circuit components, and without power consumption;
Described switching power circuit (1) comprises fuse F1, piezo-resistance VDR1, electric capacity C1, resistance R3, R1, R2, and wherein piezo-resistance VDR1, electric capacity C1 are in parallel with resistance R1, R2 series circuit;
Output current is converted to voltage by resistance R9 and super capacitor C6 by described contactor control circuit (4), the feedback pin of LNK306P is being fed back to by resistance R10, wherein resistance R10 selects the precision of 4.3K Ω to be the measuring resistance of 1%, resistance R9 selects the precision of 2K Ω to be the measuring resistance of 1%, super capacitor C6 gets 10uF, and withstand voltage is 50V.
2. the Intelligent coffee maker circuit of no standby power according to claim 1, is characterized in that, described triode Q1 is the NPN type triode of high level conducting, low level cut-off.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110267454.1A CN102349801B (en) | 2011-09-09 | 2011-09-09 | Intelligent coffee maker circuit without standby power consumption |
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| CN201110267454.1A CN102349801B (en) | 2011-09-09 | 2011-09-09 | Intelligent coffee maker circuit without standby power consumption |
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| CN102349801A CN102349801A (en) | 2012-02-15 |
| CN102349801B true CN102349801B (en) | 2015-07-01 |
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| CN201110267454.1A Active CN102349801B (en) | 2011-09-09 | 2011-09-09 | Intelligent coffee maker circuit without standby power consumption |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107346144A (en) * | 2017-03-13 | 2017-11-14 | 苏州咖博士咖啡系统科技有限公司 | A kind of coffee machine heating system control circuit of high reliability |
| CN109814458A (en) * | 2019-02-14 | 2019-05-28 | 深圳朗特智能控制股份有限公司 | Low-power consumption standby control circuit |
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| CN201335958Y (en) * | 2008-10-09 | 2009-10-28 | 广东德豪润达电气股份有限公司 | Zero-crossing circuit capable of realizing standby zero-power of household appliances |
| CN101963789A (en) * | 2010-09-02 | 2011-02-02 | 常州市凯迪电器有限公司 | Standby zero power consumption switch control system |
| CN201754223U (en) * | 2010-07-16 | 2011-03-02 | 广东佳彩数码科技有限公司 | Energy saving true standby circuit |
| CN202257139U (en) * | 2011-09-09 | 2012-05-30 | 深圳市朗特电子有限公司 | Intelligent coffeemaker circuit without standby power consumption |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100321957A1 (en) * | 2009-06-17 | 2010-12-23 | Grenergy Opto, Inc. | Standby power method and apparatus for power module applications |
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| CN201335958Y (en) * | 2008-10-09 | 2009-10-28 | 广东德豪润达电气股份有限公司 | Zero-crossing circuit capable of realizing standby zero-power of household appliances |
| CN201327090Y (en) * | 2008-12-08 | 2009-10-14 | 殷磊 | Zero-standby small-firepower induction cooker |
| CN201754223U (en) * | 2010-07-16 | 2011-03-02 | 广东佳彩数码科技有限公司 | Energy saving true standby circuit |
| CN101963789A (en) * | 2010-09-02 | 2011-02-02 | 常州市凯迪电器有限公司 | Standby zero power consumption switch control system |
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Address after: 518000 Guangdong city in Shenzhen Province, Baoan District Whampoa manhole Street East Ring Road No. 148 building, third industrial park is the wind Patentee after: Shenzhen Langte intelligent control Limited by Share Ltd Address before: 518000 Guangdong city in Shenzhen Province, Baoan District Whampoa manhole Street East Ring Road No. 148 building, third industrial park is the wind Patentee before: Shenzhen Longtech Electronics Co.,Ltd. |