Comparison of DC-DC-converter architectures of power management circuits for thermoelectric generators
| Autor: | Merken, C. Van Hoof, I. Doms |
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| Rok vydání: | 2007 |
| Předmět: |
Power management
Engineering business.industry Electrical engineering Hardware_PERFORMANCEANDRELIABILITY Inductor law.invention Capacitor Thermoelectric generator Hardware_GENERAL law Sensor node Boost converter Hardware_INTEGRATEDCIRCUITS Electronic engineering Charge pump business Electronic circuit |
| Zdroj: | 2007 European Conference on Power Electronics and Applications. |
| DOI: | 10.1109/epe.2007.4417530 |
| Popis: | Future wireless sensor nodes will, for certain applications, require only a few microwatts of energy. Micro-machined thermoelectric generators can produce such amount of electrical energy, but variations in the generated power and voltage make a power management circuit necessary to generate a suitable power supply for the sensor node. This paper compares 2 options for such a circuit. We present one power management circuit for a thermoelectric generator that contains a DC-DC-converter with an inductor and one with capacitors. The converter with inductor has the advantage that the conversion factor can be set very precise. But for an efficient implementation, a large inductor is required. This inductor prevents the solution from being small and efficient at the same time. The use of an integrated charge pump however, will allow a more efficient circuit than a DC-DC-converter with an integrated inductor, even though the conversion factor is less flexible. Ultimately, the type of application will impose the type of DC-DC-converter that will be used. |
| Databáze: | OpenAIRE |
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