Safe dynamic drive circuit
A driving circuit and safe technology, which is applied in the direction of electrical components, adjusting electric variables, output power conversion devices, etc., can solve the problems of not being able to output dynamic square wave signals, low energy transmission efficiency, and increasing the volume of transformers, etc., to achieve improved Energy transfer efficiency, simplification of circuit design, and the effect of solving performance problems
Active Publication Date: 2020-06-30
北京聚智达科技有限公司
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Problems solved by technology
[0002] Safe dynamic drive circuits are often used in railway signal control systems. At present, the main method used is that the controller outputs two effective dynamic square wave signals. Due to the performance limitation of the controller, it is impossible to output effective dynamic square wave signals with high frequency. , the energy transmission efficiency is extremely low. At present, the size of the transformer is usually increased to make up for the deficiency. At the same time, the fault upgrade caused by a single dynamic square wave signal in the case of a circuit fault needs to be considered.
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[0053] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0054] see figure 1 ,figure 1 It is a schematic diagram of a safe dynamic driving circuit provided by an embodiment of the present invention, and the safe dynamic driving circuit includes:
[0055] The first controller 1 is configured to output a first low-frequency dynamic square wave signal, and the frequency of the first low-frequency dynamic square wave signal is 1KHz-5KHz;
[0056] The second controller 2 is configured to output a second low-frequency dynamic square wave signal, and the frequency of the second low-frequency dynamic square wave signal is 1KHz-5KHz;
[0057] A first transformer T1 and a first driver 3 for controlling the first transformer according to...
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The invention discloses a safety dynamic drive circuit which comprises a first controller, a second controller, a first transformer, a first driver, a second transformer, a second driver, a first rectifier module, a second rectifier module, a high-frequency pulse module, a drive coupling module, a third transformer, a third driver and a third rectifier module. The first driver is used for controlling the first transformer according to a first low-frequency dynamic square wave signal, the second driver is used for controlling the second transformer according to a second low-frequency dynamic square wave signal, the drive coupling module is connected with the first rectifier module and the high-frequency pulse module, the third driver is used for controlling the third transformer according to a forward bias pulse signal, and the third rectifier module is used for rectifying a secondary signal of the third transformer. According to the safety dynamic drive circuit, energy transmission efficiency can be improved, and the size of the transformer can be reduced.
Description
technical field [0001] The invention relates to the technical field of railway signal control, in particular to a safe dynamic drive circuit. Background technique [0002] Safe dynamic drive circuits are often used in railway signal control systems. At present, the main method used is that the controller outputs two effective dynamic square wave signals. Due to the performance limitation of the controller, it is impossible to output effective dynamic square wave signals with high frequency. , the energy transmission efficiency is extremely low. At present, it is usually used to increase the volume of the transformer to make up for the deficiency. At the same time, the fault upgrade caused by a single dynamic square wave signal in the case of a circuit fault needs to be considered. Contents of the invention [0003] The purpose of the present invention is to provide a safe dynamic driving circuit, which can improve the energy transmission efficiency and is beneficial to red...
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IPC IPC(8): H02M7/217H02M3/335
Inventor 任光卢学云张斌
Owner 北京聚智达科技有限公司