High-precision low-current lightning surge generator
A surge generator and small current technology, which is applied in the field of high-precision low-current lightning surge generators, can solve problems such as voltage instability, low test set voltage, and unsatisfactory conditions, and achieve small voltage drop and high voltage accuracy Effect
Inactive Publication Date: 2015-06-17
SHANGHAI PRIMA ELECTRONICS
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Problems solved by technology
[0002] The available test setting voltage range of the existing lightning surge generator is 200V to 600V, which cannot meet the test requirements of small components in the existing market. The test setting voltage required by many small components is generally relatively low. The required voltage needs to be set to a voltage of 20V to 150V. If the voltage is forced to be lowered on the existing instrument, the actual output voltage will be unstable. It is possible to set the 50V output to 100V. This is because at low voltage, the entire The accuracy of the high-voltage charging system is not enough, it is very easy to cause overshoot and undershoot
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[0016] Such as figure 1 As shown, a high-precision low-current lightning surge generator is characterized in that it includes a high-voltage feedback module BT1, a high-voltage charging module, a high-voltage main switch module Q1 and a signal forming module connected in sequence, and the high-voltage feedback module BT1 includes A high-voltage source and a feedback unit respectively connected to the high-voltage charging module.
[0017] The high-voltage charging module includes a resistor R1 and a capacitor C1 connected to each other. The high-voltage source is connected to the resistor R1 and the capacitor C1 respectively, and the theoretical value of the charging time is calculated for the charging resistor. After many practical tests, a A reasonable match for R1 and C1.
[0018] The feedback unit includes a power amplifier follower circuit, an amplification circuit, a differential circuit and a comparator connected in sequence, the power amplifier follower circuit is con...
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The invention relates to a high-precision low-current lightning surge generator. The high-precision low-current lightning surge generator comprises a high voltage feedback module, a high voltage charging module, a high voltage main switch module and a signal forming module which are sequentially connected, and the high voltage feedback module comprises a high voltage source and a feedback unit which are each connected with the high voltage charging module. Compared with the prior art, the high-precision low-current lightning surge generator has the advantages that the voltage accuracy is high, and hit waveforms are smooth and free of burrs.
Description
technical field [0001] The invention relates to a lightning surge generator, in particular to a high-precision low-current lightning surge generator. Background technique [0002] The available test setting voltage range of the existing lightning surge generator is 200V to 600V, which cannot meet the test requirements of small components in the existing market. The test setting voltage required by many small components is generally relatively low. The required voltage needs to be set to a voltage of 20V to 150V. If the voltage is forced to be lowered on the existing instrument, the actual output voltage will be unstable. It is possible to set the 50V output to 100V. This is because at low voltage, the entire The accuracy of the high-voltage charging system is not enough, which is very easy to cause overshoot and undershoot. Contents of the invention [0003] The purpose of the present invention is to provide a high-precision low-current lightning surge generator with high...
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Inventor 毛文斌顾建军
Owner SHANGHAI PRIMA ELECTRONICS