Abstract
We introduce an analytical method to calculate the input impedance of a multi-stage rectifier circuit. It is shown that the input impedance of a half-wave rectifier depends on the operating frequency, the input power level and the load resistance value. The introduced method uses the equivalent circuit model of a Schottky diode. The analytical method has been verified by harmonic balance analysis for different load resistances and for different input power levels as a function of frequency. Based on the input impedance of the half-wave rectifier, the analytical method is then extended to calculate the input impedance of an n-stage rectifier circuit. A voltage doubler is simulated, fabricated and its input impedance is measured. The simulation results of the analytical solution and harmonic balance are validated by measurements.
| Original language | English |
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| Title of host publication | 2019 IEEE Wireless Power Transfer Conference, WPTC 2019 |
| Publisher | Institute of Electrical and Electronics Engineers |
| Pages | 30-35 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781728107059 |
| DOIs | |
| Publication status | Published - Jun 2019 |
| Event | 2019 IEEE Wireless Power Transfer Conference, WPTC 2019 - London, United Kingdom Duration: 18 Jun 2019 → 21 Jun 2019 |
Conference
| Conference | 2019 IEEE Wireless Power Transfer Conference, WPTC 2019 |
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| Abbreviated title | WPTC2019 |
| Country/Territory | United Kingdom |
| City | London |
| Period | 18/06/19 → 21/06/19 |
Keywords
- Energy harvesting
- Input impedance
- Matching network
- Rectenna
- Rectifier
- Voltage multiplier