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Note: Isolated high-voltage thermo-compensated DC power supply for mass spectrometry
1Talrose Institute for Energy Problems of Chemical Physics Russian Academy of Science, Chernogolovka 142432, Russia.
The Review of Scientific Instruments
|December 4, 2018
Summary
A new isolated high voltage power supply offers exceptional stability and low ripple, ideal for advanced mass spectrometry. This design enhances performance in instruments like time-of-flight and Orbitrap mass spectrometers.
Area of Science:
- Electrical Engineering
- Analytical Chemistry
- Instrumentation
Background:
- High voltage power supplies are critical components in advanced analytical instruments.
- Existing power supplies often face challenges with stability and noise, impacting measurement accuracy.
- Modern high-resolution mass spectrometers require increasingly precise and stable power sources.
Purpose of the Study:
- To design and develop a highly stable isolated high voltage power supply.
- To achieve superior temperature stability and minimize voltage ripple.
- To enable enhanced performance in high-resolution mass spectrometry.
Main Methods:
- Utilized a sinusoidal voltage in the transformer conversion process.
- Implemented design strategies for isolation and stability.
- Characterized temperature stability and ripple levels.
Main Results:
- Achieved excellent temperature stability below 15 ppm/°C.
- Attained a very low ripple level below 7 ppm.
- Demonstrated the effectiveness of sinusoidal voltage conversion in reducing ripple.
Conclusions:
- The developed power supply meets the stringent requirements for high-resolution mass spectrometry.
- Its stability and low ripple are crucial for instruments like time-of-flight and Orbitrap mass spectrometers.
- This technology can significantly improve mass accuracy and resolution in mass spectrometry applications.
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