High speed solenoid valve drive circuit
A high-speed solenoid valve and drive circuit technology, applied in valve details, valve devices, engine components, etc., can solve the problems of the solenoid valve opening and closing frequency drop, the drive current release time is long, and the current rising speed drops, etc., to improve the opening and closing. Frequency, low cost, the effect of reducing energy loss
Active Publication Date: 2018-07-20
合肥太易检测技术有限公司
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Problems solved by technology
This method has two disadvantages: First, if figure 2 As shown, the driving current rises and the driving current release time is too long, resulting in a decrease in the opening and closing frequency of the solenoid valve, which cannot meet the high-speed requirements; Significantly lower rate of ascent, resulting in significant heat generation, resulting in energy loss and shortened solenoid valve life
Method used
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Embodiment Construction
[0018] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.
[0019] see figure 1 Shown is a schematic diagram of the circuit structure of the high-speed solenoid valve driving circuit of the present invention.
[0020] In one embodiment, the high-speed solenoid valve drive circuit, such as image 3 As shown, it includes a first high-position switch connected between the drive terminal of the high-speed solenoid valve and the drive voltage VH, and the first high-position switch is used to control the conduction between the drive terminal of the high-speed solenoid valve and the drive voltage VH. It also includes a first strobe switch connected between the strobe end of the high-speed solenoid valve and the valve selection pulse, and the first strobe switch is used to selectively control the high-speed solenoid valve on and off. Such as Figure 4 As shown, the high-speed solenoid valve works in the v...
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The invention relates to a high-speed solenoid valve driving circuit, and belongs to the technical field of circuits. According to the high-speed solenoid valve driving circuit, in the valve opening stage, a drive voltage VH firstly outputs a high level and then outputs a PMW pulse level, so that under the condition that the opening and closing motions of a solenoid valve are guaranteed, heating is avoided, the energy loss is reduced, the service life of the high-speed solenoid valve is prolonged, the drive voltage VH is then used for outputting a reference voltage used for keeping a reference current of the high-speed solenoid valve in the valve closing stage, the high-speed opening and closing requirement of the solenoid valve is met, and the opening and closing frequency of the solenoid valve is increased. The high-speed solenoid valve driving circuit is simple in structure, low in cost and quite wide in application scope.
Description
technical field [0001] The present invention relates to the technical field of circuits, in particular to the technical field of solenoid valve circuits, in particular to a high-speed solenoid valve driving circuit. Background technique [0002] Solenoid valves are used more and more widely in the industrial field, especially high-speed solenoid valves. Due to the unreasonable design of the drive circuit, the current solenoid valve cannot meet the high-speed requirements in many places. In addition, it also causes excessive energy loss and shortens the life of the solenoid valve. [0003] In the current application of solenoid valves, the driving circuit is mainly driven by a single voltage, and its circuit structure is as follows: figure 1 shown. This method has two disadvantages: First, if figure 2 As shown, the driving current rises and the driving current release time is too long, resulting in a decrease in the opening and closing frequency of the solenoid valve, whi...
Claims
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IPC IPC(8): F16K31/06
CPCF16K31/0675
Inventor 张曼项安幸波彭亮吴风许小龙
Owner 合肥太易检测技术有限公司