http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114421766-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9083f8824b83211e2a0503686f35ca06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02M3-157 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02M1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03K4-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03K4-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02M3-157 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02M1-44 |
| filingDate | 2021-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_920d9f683fcadadabec393f62223495a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03904b9d3270f7228b240affc352f4d3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13362cbd9d520e76b40582403b5931c2 |
| publicationDate | 2022-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114421766-A |
| titleOfInvention | High-precision oscillator circuit applied to switching power supply and having jitter frequency and slope compensation functions |
| abstract | The invention belongs to the technical field of power management chips, and particularly relates to a high-precision oscillator circuit with frequency jitter and slope compensation, which is applied to a switching power supply. The invention adopts a zero temperature coefficient current source generated by a reference current source to charge and discharge a capacitor, and changes the frequency of an output oscillator by changing charging mirror current by utilizing a three-position digital frequency modulation technology; the total capacitance is changed by using the frequency-jittering capacitance to improve EMI; and the slope compensation module is formed by adopting source negative feedback and can adjust the slope. On the basis of high-precision output frequency of the traditional oscillator, the invention can linearly switch the output frequency in a wider range, provide a slope-adjustable slope compensation current triangular wave signal for the modulation circuit, can correct and adjust the output of the oscillator in a certain range, and is more suitable for the requirements of stability and high precision of a clock signal in a power management chip circuit. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114679135-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114679135-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-116584714-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-116584714-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115913120-A |
| priorityDate | 2021-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 180.