http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110572037-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02M3-33569 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02M3-335 |
| filingDate | 2019-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110572037-B |
| titleOfInvention | Control method and circuit of active clamp flyback converter |
| abstract | The invention provides a control method and a circuit of an active clamp flyback converter. The current sampling circuit is used for sampling the positive peak current of the exciting inductor to generate a voltage signal V CS Voltage sampling circuit sampling transformerInput voltage V of converter IN Generating an error voltage signal V FB And comparing the control mode conversion threshold value from non-complementary conversion to complementary conversion with the control mode conversion threshold value from complementary conversion to non-complementary conversion to determine the working state of the converter, wherein the converter can adaptively adjust the mode conversion threshold value according to the change of the input voltage. The complementary mode and the non-complementary mode are compatible in the same active clamping flyback converter, the complementary mode is adopted under heavy load, and the non-complementary mode is adopted under light load, so that the active clamping flyback converter can obtain higher energy conversion efficiency in the whole load range, and further, the working frequencies of the active clamping flyback converter in the complementary mode and the non-complementary mode are only different by 2-3 times, and the loop stability of the circuit is better when the modes are switched. |
| priorityDate | 2019-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 15.