Controller power supply circuit and electric appliance
A technology for power supply circuits and controllers, which is applied in the direction of circuit devices, DC network circuit devices, electrical components, etc., and can solve problems such as key components of easily damaged controllers
Pending Publication Date: 2021-01-05
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0003] In view of this, the embodiment of the present invention provides a controller power supply circuit and electrical appliances to overcome the problem in the prior art that key components of the controller are easily damaged when the power supply of the controller power supply circuit is hot-swapped
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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0027] The technical features involved in different embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
[0028] In the prior art, the central controllers of most electrical or electronic products need to use multiple controllers to achieve the functional requiremen...
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The invention provides a controller power supply circuit and an electric appliance, and the circuit comprises a main controller, a hot plug protection circuit and an auxiliary controller group; the auxiliary controller group comprises at least one auxiliary controller, and a first connector terminal arranged on the main controller is plugged with a second connector terminal arranged on the auxiliary controller through an inter-board connection line; the main controller provides a first power supply for the auxiliary controller through an inter-board connection line; the auxiliary controller converts the first power supply into a second power supply to supply power to an MCU chip of the auxiliary controller; any auxiliary controller in the auxiliary controller group carries out loop-back power supply on the MCU chip of the main controller through an inter-board connection line. By adopting loop-back power supply, the problem of unequal potentials between the main controller and the auxiliary controller due to on-line impedance is avoided, and by arranging the hot plug protection circuit, the main controller is prevented from being damaged by plugging and unplugging a connecting linebetween the main controller and the auxiliary controller under an electrified condition, and a hot plug protection function is realized.
Description
technical field [0001] The invention relates to the technical field of controllers, in particular to a controller power supply circuit and electrical appliances. Background technique [0002] In most electrical or electronic products, the controller needs to use multiple controllers to achieve the functional requirements of the product, and the main controller and the sub-controller need to be connected by connecting wires to maintain the transmission of power supply and communication signals. Usually, the main controller supplies power to the secondary controller in one direction. This method needs to be realized by using a connector structure connecting the socket and the plug between the two controllers, and the electronic product is in the life cycle (especially in the research and development and production stages). ) cannot avoid the plugging and unplugging of the connectors between the controllers, but due to the capacitive effect of the controllers of electronic prod...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02J1/00H02M7/04H02M3/04H02M1/32
CPCH02M1/32H02M3/04H02M7/04H02J1/001
Inventor 杨勇倪林海袁庆杰张春朝阮家俊
Owner GREE ELECTRIC APPLIANCES INC