Device and method for stabilizing load operating current
A technology of working current and stabilizing device, which is applied in the electronic field, can solve problems such as the level jump of the output terminal of the current source, the influence of the current size, the instability of the original load working current, etc., and achieve the effect of stabilizing the working current
Active Publication Date: 2020-09-25
SUZHOU KEDA TECH
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Problems solved by technology
[0004] This application provides a device and method for stabilizing the working current of the load, which can solve the level jump of the output terminal of the current source when the original load is in state switching, which affects the current size of the current control component to control the external supply of the current source, resulting in the work of the original load. The problem of unstable current
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[0052] The specific implementation manners of the present application will be further described in detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present application, but not to limit the scope of the present application.
[0053] figure 1 It is a schematic diagram of the circuit structure of the LED display screen in the prior art provided by an embodiment of the present application. The circuit structure of the LED display screen includes a current source 1 , a load control component 2 , at least one original load 3 and a current control component 4 .
[0054] figure 1 2 original loads are taken as an example for illustration, and in other embodiments, there may be one or more original loads.
[0055] The current source 1 is used to provide working current for the connected original load 3 .
[0056] The current control assembly 4 and a plurality of current sources 1 (for example: figure 1 The output termin...
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The present application relates to a device and method for stabilizing load working current, and belongs to the technical field of electronics. The device comprises: a current source, a load control component, an original load and a built-in load. The original load and the built-in load are respectively connected with an output end of the current source through the load control component. The loadcontrol component is used for controlling the connection or disconnection of the original load and the current source, and controlling the connection or disconnection of the built-in load and the current source, wherein the volt-ampere characteristic of the built-in load is matched with the volt-ampere characteristic of the original load. The device of the present invention can solve the problemof unstable working current of the original load caused by that the current magnitude provided externally by a control current source of a current control component is affected by level jump of the output end of the current source during state switching of the original load, and can achieve the effect of stabilizing the working current of the original load.
Description
technical field [0001] The application relates to a device and method for stabilizing load operating current, which belongs to the field of electronic technology. Background technique [0002] At present, the application of LED display is more and more extensive. The circuit structure of the LED display screen includes a current source, an LED load connected to the current source, a load control component (such as a switch) for controlling the connection or disconnection of the LED load with the current source, and a current for controlling the output of each current source. Consistent current control components. [0003] In the above circuit structure, the current source provides working current for the LED load. When switching between the LED load and the current source (for example: switching from the on state to the off state or from the off state to the on state), the jump of the output level of the current source will interfere with the current control components , ...
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IPC IPC(8): G05B19/04G09G3/32
CPCG05B19/04G09G3/32
Inventor 白涛周浩曹李军
Owner SUZHOU KEDA TECH