| Presentation | 2005-01-21 A Power Loss Measuring Technique of Ferrite Core for Switching Power Supply in its Actual Operating Mode Jinichi MURATA, Tadashi YUKAWA, Tamotsu NINOMIYA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The details of method are reported to measure a power loss of ferrite core used for the transformer in a switching power supply in its actual operating mode. An integral way which is simple and convenient was used for a symmetric sinusoidal, a symmetric rectangular and an asymmetric rectangular voltage waveform excitation. But this way is unsuitable in respect of the accuracy, if sensed exciting current has time delay. High Frequency Resistive Meter is used for measuring the current without time delay, but this meter is not suitable for Asymmetric rectangular waveform excitation. Therefore, as an elementary but accurate method named, "Input Power Way", was proposed and used for the power loss measurement under the excitation of Asymmetric rectangular waveform. These measuring methods were compared with Calorimetric method, which is the standard way. Also some evaluation results, notices about measuring and error analysis are described. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Switching Power Supply / Ferrite Core / Power Loss measuring method / Driving voltage waveform / Error |
| Paper # | EE2004-54,CPM2004-149 |
| Date of Issue |
| Conference Information | |
| Committee | CPM |
|---|---|
| Conference Date | 2005/1/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Component Parts and Materials (CPM) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Power Loss Measuring Technique of Ferrite Core for Switching Power Supply in its Actual Operating Mode |
| Sub Title (in English) | |
| Keyword(1) | Switching Power Supply |
| Keyword(2) | Ferrite Core |
| Keyword(3) | Power Loss measuring method |
| Keyword(4) | Driving voltage waveform |
| Keyword(5) | Error |
| 1st Author's Name | Jinichi MURATA |
| 1st Author's Affiliation | Shindengen Electric Mfg. Co., Ltd.() |
| 2nd Author's Name | Tadashi YUKAWA |
| 2nd Author's Affiliation | Shindengen Electric Mfg. Co., Ltd. |
| 3rd Author's Name | Tamotsu NINOMIYA |
| 3rd Author's Affiliation | Dept. of Electrical and Electronic Systems, Engineering, Kyushu University |
| Date | 2005-01-21 |
| Paper # | EE2004-54,CPM2004-149 |
| Volume (vol) | vol.104 |
| Number (no) | 576 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |