Solid-state switch for high-voltage pulse oscillation discharge
A solid-state switch and high-voltage pulse technology, which is applied in electronic switches, pulse technology, circuits, etc., can solve problems such as high working environment temperature requirements, reverse conduction diodes are easily damaged, and cannot meet the requirements of pulse oscillation discharge, etc., to increase the use of range effect
Inactive Publication Date: 2017-02-01
合肥博雷电气有限公司
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Problems solved by technology
When these two kinds of discharge switches are used, there are the following disadvantages: the ball gap discharge will produce harmful gases such as ozone after the gas is ionized, and it will also generate strong electromagnetic interference and noise; At the same time, it has relatively high temperature requirements for the working environment
In recent years, solid-state switches of power electronic devices have been widely used due to the advantages of no need for preheating, wide operating temperature range, low noise, and large operating current. However, the operating voltage of existing solid-state switches can only reach 3kV. It cannot meet the requirements of higher voltage pulse oscillation discharge, and the reverse conduction diode in the solid-state switch is easily damaged
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[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0012] refer to figure 1 , a solid-state switch for high-voltage pulse oscillating discharge, including a housing, a circuit board is arranged on the housing, and a transformer B is arranged on the circuit board, one end of the primary coil L1 of the transformer B is connected to an input terminal VI1, and the transformer B The other end of the primary coil L1 is connected to the input terminal VI2, one end of the secondary coil L2 of the transformer B is connected to the cathode of the diode D1 and the third end of the thyristor QZ1, and the anode of the thyristor QZ1 is connected to the cathode of the diode D2, The negative pole of the diode D3, the capacitor C1, t...
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The invention discloses a solid-state switch for high-voltage pulse oscillation discharge. The solid-state switch comprises a shell, wherein a circuit board is arranged on the shell; a transformer B is arranged on the circuit board; one end of a primary coil L1 of the transformer B is connected with an input end VI1; the other end of the primary coil L1 of the transformer B is connected with an input end VI2; one end of a secondary coil L2 of the transformer B is connected with a negative electrode of a diode D1 and a third end of a silicon controlled rectifier QZ1; a positive electrode of the silicon controlled rectifier QZ1 is connected with a negative electrode of a diode D2, a negative electrode of a diode D3, a capacitor C1, a resistor R1, a resistor R2 and an output end VO1; and the other end of the resistor R1 is connected with the other end of the capacitor C1 and the other end of the resistor R2. In the solid-state switch, secondary coils of a plurality of transformers B are connected in series, so that a working voltage of the solid-state switch is increased exponentially, and the requirement of high-voltage pulse oscillation discharge is met greatly. Moreover, a protection circuit is arranged in the solid-state switch for high-voltage pulse oscillation discharge.
Description
technical field [0001] The invention relates to the field of high-voltage solid-state technology, in particular to a solid-state switch for high-voltage pulse oscillation discharge. Background technique [0002] At present, the discharge switches used to generate high-voltage pulse oscillation by discharging the charging capacitor are mostly discharge ball gaps or pinch tubes. When these two kinds of discharge switches are used, there are the following disadvantages: the ball gap discharge will produce harmful gases such as ozone after the gas is ionized, and it will also generate strong electromagnetic interference and noise; At the same time, it has relatively high temperature requirements for the working environment. In recent years, solid-state switches of power electronic devices have been widely used due to the advantages of no need for preheating, wide operating temperature range, low noise, and large operating current. However, the operating voltage of existing soli...
Claims
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Login to View More IPC IPC(8): H03K17/723H03K17/10H03K17/081
CPCH03K17/08108H03K17/105H03K17/723
Inventor 刘英高龙芮庆
Owner 合肥博雷电气有限公司