A kind of multi-phase pulse power supply and pulse shaping method
A pulsed power supply, multi-phase technology, applied in the direction of electric pulse generator circuits, energy storage elements to generate pulses, etc., can solve the problem that power devices and power conversion circuits are difficult to achieve reliable operation, and analog circuit control methods are difficult to adjust online. Load application requirements and other issues, to achieve accurate frequency, meet high current, and increase the effect of output capacity
Active Publication Date: 2022-07-29
中电科蓝天科技股份有限公司
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[0003] The pulse power supply is a special power supply that compresses energy accumulation and releases it quickly at the moment of triggering. Its technical requirements are significantly different from those of traditional power supplies. The instantaneous output power of the power supply is more than 50 times that of traditional power supplies, and the output current characteristic index is also extremely strict. , the traditional power supply design scheme cannot meet the application requirements of the load
[0004] Existing pulse power supply schemes include magnetic pulse compression, pulse forming network, Marx generator, etc. For the characteristics of large current, high quality, and fast response, it is difficult for a single power device and power conversion circuit to achieve reliable operation under working conditions. work, and the traditional analog circuit control method is difficult to adapt to the online adjustment requirements flexibly and accurately
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[0038] In order to further understand the content of the invention, features and effects of the present invention, the following embodiments are exemplified and described in detail with the accompanying drawings as follows:
[0039] like Figure 1 to Figure 8 As shown, the technical scheme of the present invention is:
[0040] A multi-phase pulse power supply, comprising a DC power supply for power supply, a pulse shaping circuit, a pulse triggering control circuit and a controller; the pulse shaping circuits are not less than two, and each pulse shaping circuit comprises:
[0041] The main power conversion switch that converts the input power into the power required by the pulsed load;
[0042] Topological inductance used for energy storage of the main power conversion switch during the power conversion process;
[0043] A freewheeling diode used to provide a freewheeling circuit for the energy storage inductor when the main power conversion switch is turned off;
[0044] ...
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The invention discloses a multi-phase pulse power supply and a pulse shaping method, belonging to the technical field of pulse power supply, comprising a DC power supply, a pulse shaping circuit, a pulse triggering control circuit and a controller; The circuit includes: a main power conversion switch for converting the input power into the power required by the pulse load; a topology inductance for the main power conversion switch to store energy during the power conversion process; for the main power conversion switch to store energy when it is turned off The inductor provides the freewheeling diode of the freewheeling circuit; provides the freewheeling circuit for the inductive part of the pulse load and the energy storage inductor, so that the load obtains the auxiliary switch of the pulse edge; the output pulse phase difference of multiple pulse shaping circuits is 360° / N; N is the number of pulse shaping circuits. The invention can provide a power supply with ultra-high current amplitude, low transient response time and low output current ripple, and has the functions of input and output overcurrent protection and multi-channel timing synchronization phase control functions.
Description
technical field [0001] The invention belongs to the technical field of pulse power supplies, and in particular relates to a multi-phase pulse power supply and a pulse shaping method. Background technique [0002] As we all know, pulse power is widely used in food processing, medical treatment, ion implantation, engine ignition and other fields. The response speed, output current ripple and repetition frequency of the power supply are directly related to the operating characteristics of the load. [0003] Pulse power supply is a special power supply that compresses energy accumulation and releases it quickly at the moment of triggering. Its technical requirements are significantly different from those of traditional power supplies. The instantaneous output power of the power supply is more than 50 times that of traditional power supplies, and the output current characteristics are also extremely demanding. , the traditional power supply design scheme cannot meet the applicat...
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IPC IPC(8): H02M9/02H03K3/57
CPCH03K3/57
Inventor 鲁伟王保平赵春阳陈洪涛马力君邵兰娟
Owner 中电科蓝天科技股份有限公司