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Electrical appliance mainboard and model selection port control circuit and method

A technology for controlling power supply of circuits and motherboards, applied in the field of circuits, can solve problems such as energy waste, achieve the effect of curbing energy waste and alleviating the pressure of energy shortage

Active Publication Date: 2013-04-17
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a control circuit and method for the main board of an electrical appliance and its model selection port, so as to solve the problem of energy waste in the model selection port of an electrical appliance

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  • Electrical appliance mainboard and model selection port control circuit and method
  • Electrical appliance mainboard and model selection port control circuit and method
  • Electrical appliance mainboard and model selection port control circuit and method

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0028] figure 1 It is a schematic diagram of the control circuit of the model selection port according to the first embodiment of the present invention, such as figure 1 As shown, the control circuit includes: a switch unit 10, the first end of which is used to connect the motherboard power supply C of the electrical appliance, the second end is used to connect the model selection port B of the electrical appliance; and a control unit 20, the first end of which is used to connect the electrical appliance The main board power supply C, the second end is connected to the third end of the switch unit 10, used to control the switch unit 10 to close when the electrical appliance is powered on so th...

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Abstract

The invention discloses an electrical appliance mainboard and a model selection port control circuit and a method. The model selection port control circuit comprises a switch unit and a control unit, wherein a first end of the switch unit is used for connecting a mainboard power source of an electrical appliance, and a second end of the switch unit is used for connecting a model selection port of the electrical appliance; and the first end of the control unit is used for connecting the mainboard power source of the electrical appliance, the second end of the control unit is connected with a third end of the switch unit for controlling the switch unit to be closed to enable the model selection port to be electrified when the electrical appliance is electrified and controlling the switch unit to be powered off to enable the model selection port to lose power after a preset electrify time of the electrical appliance is due, wherein the preset time is larger than or equal to the time for obtaining the model information of the electrical appliance of the electrical appliance mainboard through the model selection port. By means of the electrical appliance mainboard and the model selection port control circuit and the method, energy consumption can be effectively restrained, and energy shortage pressure can be remitted.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a control circuit and method for an electrical main board and a model selection port thereof. Background technique [0002] Standby loss has always been a problem that cannot be ignored in electrical equipment. The State Council launched the "Energy Conservation and Emission Reduction, National Action" in 2007. After the "Energy Conservation and Emission Reduction", the winning certification center took the lead in implementing the "1W Plan" across the country. The core content of the "1W Plan" is to reduce the standby power of circuit equipment. consumption. With the support of national policies, the electrical appliance industry began to study how to reduce standby power consumption. At present, switching power supply is mainly used for power supply: switching power supply has high efficiency during operation, and the minimum power consumption can be as low as 40mW. [0003] However,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32
Inventor 周伟
Owner GREE ELECTRIC APPLIANCES INC
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