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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hamill, D.C. Ong Tiam Toh |
| Copyright Year | 1995 |
| Description | Author affiliation: Dept. of Electron. & Electr. Eng., Surrey Univ., Guildford, UK (Hamill, D.C.; Ong Tiam Toh) |
| Abstract | When low ripple is required from a DC-DC converter, active filters offer an alternative to passive LC and coupled inductor filters. A simple experimental active ripple filter is presented, which employs a pair of current transformers as sensors for feedforward and feedback control and two MOSFETs as cancellation current drivers. Measurements demonstrate good ripple attenuation: more than 70 dB at 100 kHz, and 23 dB at 1 MHz. The overall efficiency was measured as 95%, but could be improved by attention to the auxiliary supplies to around 98%. The filter is suitable for input and output smoothing in aerospace and other critical applications.< |
| Starting Page | 267 |
| Ending Page | 273 |
| File Size | 661163 |
| Page Count | 7 |
| File Format | |
| ISBN | 078032482X |
| DOI | 10.1109/APEC.1995.468961 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1995-03-05 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Active filters Inductors Voltage Passive filters Couplings Filtering Circuit topology Attenuation measurement DC-DC power converters Switching converters |
| Content Type | Text |
| Resource Type | Article |
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