Solenoid valve drive circuit
A solenoid valve drive and circuit technology, applied to valve details, valve devices, engine components, etc., can solve problems such as damage to the circuit system, failure to release energy storage, etc.
Active Publication Date: 2019-05-07
INVENTEC PUDONG TECH CORPOARTION +1
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Problems solved by technology
[0004] The present invention is to provide a solenoid valve drive circuit, in addition to being used for a single-coil or double-coil solenoid valve switch, it can overcome the problem that the previous single-coil solenoid valve switch cannot release the stored energy and damage the circuit system
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[0030] The detailed features and advantages of the present invention are described in detail below in the embodiments, the content of which is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of protection of the claims and With the accompanying drawings, any person skilled in the art can easily understand the related objects and advantages of the present invention. The following examples further illustrate the concept of the present invention in detail, but do not limit the scope of the present invention in any way.
[0031] Please refer to figure 1 , figure 1 It is a circuit diagram of a solenoid valve driving circuit according to an embodiment of the present invention. The solenoid valve driving circuit 1 includes a first transistor T1, a second transistor T2, a first delay sub-circuit 11, a second delay sub-c...
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The invention discloses an electromagnetic valve driving circuit. The electromagnetic valve driving circuit comprises a first transistor, a second transistor, a first delay sub-circuit, a second delaysub-circuit, a third transistor and a fourth transistor. The first transistor is controlled by a first control signal, and the two ends of the first transistor are used for receiving a power signal and being electrically connected with the first end of an electromagnetic valve respectively; the second transistor is controlled by a second control signal, and the two ends of the second transistor are used for receiving the power signal and being electrically connected with the second end of the electromagnetic valve respectively; the control end of the third transistor is electrically connectedwith the second delay sub-circuit, and the two ends of the third transistor are used for being electrically connected with the first end of the electromagnetic valve and receiving a reference voltagesignal respectively. The control end of the fourth transistor is electrically connected with the first delay sub-circuit, and the two ends of the fourth transistor are used for being electrically connected with the second end of the electromagnetic valve and receiving the reference voltage signal respectively.
Description
technical field [0001] The present invention relates to a solenoid valve drive circuit, in particular to a solenoid valve drive circuit with a delay sub-circuit. Background technique [0002] Solenoid valve switches are generally divided into two types: double coil and single coil, and both forms of solenoid valve switches have coils. Since the coil is an inductive load, it will cause damage to the system due to the induced potential generated in the application. As far as the solenoid valve switch of the double coil is concerned, a diode is generally added at both ends of each coil to guide and remove the stored energy. As for the single-coil solenoid valve switch, since the polarity of the two ends of the coil will be different according to the control on or off, it is impossible to use a diode to perform the energy-disabling operation. [0003] Specifically, the solenoid valve switch controls the direction of the current to adjust the positive and negative polarities at...
Claims
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IPC IPC(8): F16K31/06
CPCF16K31/0675
Inventor 池生龙
Owner INVENTEC PUDONG TECH CORPOARTION