| Paper Abstract and Keywords |
| Presentation |
2005-11-11 16:45
The Method to Improve the Resolution of Digital PWM
Eiji Takegami (Densei Lamda), Kohji Higuchi, Kazushi Nakano (Univ. Electro-Communications), Satoshi Tomioka (Densei Lamda) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Recently, digitization of a controller is progressing for demands of intelligent, common hardware, etc.. In order to control the several converter topologies with common controller, the pulse generator that can generate arbitrary pulse is necessary, and it is realized easily by digitization of PWM generator. However, PWM generator by the digital circuit, a carrier wave turns into a stairs wave. The unit width of this stairs wave is decided with a clock cycle. Therefore, the resolution of PWM output pulse is dependent on the clock cycle. The more switching frequency becomes high, the more this dependability does a bad influence. This causes the very serious problem in digitization of the controller. In this paper, we propose a method to improve the resolution of digital PWM by using pulse composite technique. Furthermore, we manufactured a prototype DC-DC converter with the controller realized by DSP, and it is shown from the experiments that the proposed method is effective. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
PWM / Digital Control / Resolution / Switching Frequency / Pulse Composite / DSP / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 391, EE2005-45, pp. 37-41, Nov. 2005. |
| Paper # |
EE2005-45 |
| Date of Issue |
2005-11-04 (EE) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
EE |
| Conference Date |
2005-11-11 - 2005-11-11 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
EE |
| Conference Code |
2005-11-EE |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
The Method to Improve the Resolution of Digital PWM |
| Sub Title (in English) |
|
| Keyword(1) |
PWM |
| Keyword(2) |
Digital Control |
| Keyword(3) |
Resolution |
| Keyword(4) |
Switching Frequency |
| Keyword(5) |
Pulse Composite |
| Keyword(6) |
DSP |
| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Eiji Takegami |
| 1st Author's Affiliation |
Densei Lamda (Densei Lamda) |
| 2nd Author's Name |
Kohji Higuchi |
| 2nd Author's Affiliation |
The University of Electro-Communications (Univ. Electro-Communications) |
| 3rd Author's Name |
Kazushi Nakano |
| 3rd Author's Affiliation |
The University of Electro-Communications (Univ. Electro-Communications) |
| 4th Author's Name |
Satoshi Tomioka |
| 4th Author's Affiliation |
Densei Lamda (Densei Lamda) |
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| Speaker |
Author-1 |
| Date Time |
2005-11-11 16:45:00 |
| Presentation Time |
30 minutes |
| Registration for |
EE |
| Paper # |
EE2005-45 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.391 |
| Page |
pp.37-41 |
| #Pages |
5 |
| Date of Issue |
2005-11-04 (EE) |
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