CONSTANT ON-TIME SWITCHING CONVERTERS WITH ULTRASONIC MODE AND CONTROL METHODS THEREOF
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Jun 29, 2017
app pub date -
Oct 19, 2016
filing date -
Dec 28, 2015
priority date (Note) -
Published
status (Latency Note)
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Abstract
A constant on-time switching converter includes a switching circuit, a comparing circuit, a mode determination circuit, an on-time control circuit and a logic circuit. The switching circuit has a first switch and converts an input voltage into an output voltage. The comparing circuit compares the output voltage with a reference voltage and generates a first setting signal. The mode determination circuit generates a second setting signal indicating whether the switching frequency of the switching circuit approaches an audible range. The on-time control circuit generates an on-time control signal. The logic circuit generates a control signal for controlling the first switch based on the on-time control signal, the first setting signal and the second setting signal. When the switching frequency approaches the audible range, the second setting signal transits from a first state to a second state, the first switch is turned ON.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
CHENGDU MONOLITHIC POWER SYSTEMS CO LTD | 611731 CHENGDU XINYUAN SYSTEM CO LTD NO 8 KEXIN ROAD CHENGDU HIGH TECH COMPREHENSIVE BONDED ZONE CHENGDU SICHUAN PROVINCE CHENGDU CITY SICHUAN PROVINCE 611731 |
International Classification(s)

- 2016 Application Filing Year
- H02M Class
- 3114 Applications Filed
- 2512 Patents Issued To-Date
- 80.67 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Mao, Wei | Chengdu, CN | 101 | 482 |
# of filed Patents : 101 Total Citations : 482 | |||
Wang, Rui | Chengdu, CN | 821 | 4323 |
# of filed Patents : 821 Total Citations : 4323 |
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Patent Citation Ranking
- 9 Citation Count
- H02M Class
- 13.73 % this patent is cited more than
- 8 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 29, 2028 |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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