A Miniature Multi-channel Floating Negative High Voltage Power Supply
A negative high voltage power supply, negative high voltage technology, applied in the direction of adjusting electrical variables, instruments, control/regulating systems, etc., can solve problems such as poor element resolution, and achieve the effects of avoiding high voltage electric shock, small size, and reducing crosstalk
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[0049] The present invention will be further described now in conjunction with accompanying drawing.
[0050] The X-ray source used in the new planetary rock soil composition analyzer includes two parts: X-ray tube and high-voltage power supply. Among them, electrons generated by the cathode of the X-ray tube are accelerated under the action of a strong electric field formed between the cathode and the anode, and the high-speed moving electrons finally generate X-rays through bremsstrahlung on the anode target.
[0051] First of all, in order to avoid the potential safety hazard of the anode being connected to the positive high voltage, the cathode is connected to the negative high voltage and the anode is grounded, so a negative high voltage power supply needs to be designed.
[0052] Secondly, the cathode has many ways to generate electrons, such as thermal electron emission and field electron emission. Different cathode electron emission principles require different power ...
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