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Standby free programmable power supply on-off circuit with single push button

A technology for switching circuits and program-controlled power supplies, which is applied in circuits, electrical program control, program control in sequence/logic controllers, etc., and can solve problems such as potential safety hazards.

Inactive Publication Date: 2009-07-22
顾宝兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, people often forget to turn off the power switch when there is a sudden power failure in daily life or industrial operation. For the power switch with standby state, such operation has certain potential safety hazards.

Method used

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  • Standby free programmable power supply on-off circuit with single push button
  • Standby free programmable power supply on-off circuit with single push button
  • Standby free programmable power supply on-off circuit with single push button

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1, such as figure 1 , 2 As shown, the non-standby single-button programmable power switch circuit of the present invention includes a circuit control processor MCU, a non-self-locking single-key button, a relay, a current-limiting resistor and a photocoupler. The control of the circuit is realized by the MCU part of the circuit control processor to realize intelligent management. For the system software flow of the startup and shutdown execution process, please refer to Figure 4 . The relay is driven by transistor T1, and a group of normally closed contacts CJ1-1 of the relay are connected in series with the non-self-locking single-key button. The connection between the normally closed contact CJ1-1 and the non-self-locking single-key button is connected with the current-limiting resistor R01, the photocoupler UL1 used to isolate and transmit signals, and the current-limiting resistor R02 to form the signal path for switching on and off. The normally open co...

Embodiment 2

[0016] Embodiment 2: as image 3 As shown, the other structures are the same as in Embodiment 1, except that this embodiment uses a double-contact non-self-locking single-key button, that is, a combination button composed of AN1-1 and AN1-2, which is a two-way cut-off, which can be used in the power supply Safer when off.

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PUM

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Abstract

The invention discloses a standby-free single-button program-controlled power switch circuit, which comprises a power supply, a circuit control processor, a button and a relay. After the power button and the normally closed contacts of the relay are connected in series, they are connected in parallel with another group of long open contacts of the relay; a current-limiting resistor and a photocoupler are connected at the junction of the power button and the normally closed contacts of the relay to make the switch signal After being isolated by the photocoupler, it is successfully transmitted to the circuit control processor to provide a signal for starting or shutting down the circuit control processor. The invention has the advantages of energy saving and safety.

Description

technical field [0001] The invention relates to a power switch circuit, in particular to a power switch circuit used for various instruments and equipment, which can eliminate power consumption during standby. technical background [0002] Based on the current household electrical appliances and electronic equipment, the circuit still works in a so-called "standby" state after the end of work or soft shutdown by remote control. Usually these standby devices are often unattended. Standing for a long time not only consumes power, but also has potential accidents. As usual, there are reports of TV fires caused by standby. This is because the power supply of the device has not been completely cut off during standby, and some internal circuits are still working. At the same time, people often forget to turn off the power switch when there is a sudden power failure in daily life or industrial operation. For the power switch with a standby state, such operation has certain potenti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04H01H47/32
Inventor 顾宝兴
Owner 顾宝兴
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