External-Reference Stabilized Current Source with Sub-PPM Stability
| Autor: | Christian Krause, Ralf Behr, Martin Gotz, Eckart Pesel, Dietmar Drung, Hansjörg Scherer, Isaac Fan |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
020208 electrical & electronic engineering 02 engineering and technology Current source Topology 01 natural sciences Stability (probability) Noise (electronics) Power (physics) law.invention Quality (physics) law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Thermal stability Resistor 010306 general physics Voltage reference |
| Zdroj: | 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018). |
| DOI: | 10.1109/cpem.2018.8500825 |
| Popis: | The noise and stability of a commercial current source is limited by the quality of components used for construction, such as the voltage reference chips, resistors, and power supplies. A state-of-the-art commercial current source typically exhibits a stability no better than parts in $\pmb{10}^{7}$ . In this paper, we present a way to implement a current source with “external” electrical references. This approach allows the current source stability to be decoupled from the noise characteristics of the main power supply circuit. A few parts in $\pmb{10}^{8}$ stability is demonstrated here. |
| Databáze: | OpenAIRE |
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