DE69218523T2 - Selbstkalibrierender Pulsbreitemodulator - Google Patents
Selbstkalibrierender PulsbreitemodulatorInfo
- Publication number
- DE69218523T2 DE69218523T2 DE69218523T DE69218523T DE69218523T2 DE 69218523 T2 DE69218523 T2 DE 69218523T2 DE 69218523 T DE69218523 T DE 69218523T DE 69218523 T DE69218523 T DE 69218523T DE 69218523 T2 DE69218523 T2 DE 69218523T2
- Authority
- DE
- Germany
- Prior art keywords
- self
- pulse width
- width modulator
- calibrating pulse
- calibrating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/10—Calibration or testing
- H03M1/1009—Calibration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
- H03M1/82—Digital/analogue converters with intermediate conversion to time interval
- H03M1/822—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Pulse Circuits (AREA)
- Dot-Matrix Printers And Others (AREA)
- Facsimile Image Signal Circuits (AREA)
- Laser Beam Printer (AREA)
- Facsimile Heads (AREA)
- Facsimile Scanning Arrangements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/756,241 US5130565A (en) | 1991-09-06 | 1991-09-06 | Self calibrating PWM utilizing feedback loop for adjusting duty cycles of output signal |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69218523D1 DE69218523D1 (de) | 1997-04-30 |
DE69218523T2 true DE69218523T2 (de) | 1997-08-07 |
Family
ID=25042621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69218523T Expired - Fee Related DE69218523T2 (de) | 1991-09-06 | 1992-09-04 | Selbstkalibrierender Pulsbreitemodulator |
Country Status (5)
Country | Link |
---|---|
US (1) | US5130565A (de) |
EP (1) | EP0531168B1 (de) |
JP (1) | JPH05252354A (de) |
CA (1) | CA2070712C (de) |
DE (1) | DE69218523T2 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0166712B1 (ko) * | 1991-11-19 | 1999-03-20 | 강진구 | 프로그래머블 펄스폭변조신호발생기 |
US6912680B1 (en) * | 1997-02-11 | 2005-06-28 | Micron Technology, Inc. | Memory system with dynamic timing correction |
US6173432B1 (en) | 1997-06-20 | 2001-01-09 | Micron Technology, Inc. | Method and apparatus for generating a sequence of clock signals |
US6101197A (en) | 1997-09-18 | 2000-08-08 | Micron Technology, Inc. | Method and apparatus for adjusting the timing of signals over fine and coarse ranges |
US6269451B1 (en) | 1998-02-27 | 2001-07-31 | Micron Technology, Inc. | Method and apparatus for adjusting data timing by delaying clock signal |
US6349399B1 (en) | 1998-09-03 | 2002-02-19 | Micron Technology, Inc. | Method and apparatus for generating expect data from a captured bit pattern, and memory device using same |
US6374360B1 (en) | 1998-12-11 | 2002-04-16 | Micron Technology, Inc. | Method and apparatus for bit-to-bit timing correction of a high speed memory bus |
US6470060B1 (en) | 1999-03-01 | 2002-10-22 | Micron Technology, Inc. | Method and apparatus for generating a phase dependent control signal |
US6369636B1 (en) * | 1999-12-21 | 2002-04-09 | Cypress Semiconductor Corp. | Method, architecture and circuit for selecting, calibrating and monitoring circuits |
US6441600B1 (en) * | 2001-01-19 | 2002-08-27 | International Business Machines Corporation | Apparatus for measuring the duty cycle of a high speed clocking signal |
US6801989B2 (en) | 2001-06-28 | 2004-10-05 | Micron Technology, Inc. | Method and system for adjusting the timing offset between a clock signal and respective digital signals transmitted along with that clock signal, and memory device and computer system using same |
US6979959B2 (en) | 2002-12-13 | 2005-12-27 | Microsemi Corporation | Apparatus and method for striking a fluorescent lamp |
US6788229B1 (en) * | 2003-03-14 | 2004-09-07 | Intersil Americas Inc. | Margining pin interface circuit for clock adjustment of digital to analog converter |
US7168027B2 (en) | 2003-06-12 | 2007-01-23 | Micron Technology, Inc. | Dynamic synchronization of data capture on an optical or other high speed communications link |
US7187139B2 (en) | 2003-09-09 | 2007-03-06 | Microsemi Corporation | Split phase inverters for CCFL backlight system |
US7183727B2 (en) | 2003-09-23 | 2007-02-27 | Microsemi Corporation | Optical and temperature feedbacks to control display brightness |
US7234070B2 (en) | 2003-10-27 | 2007-06-19 | Micron Technology, Inc. | System and method for using a learning sequence to establish communications on a high-speed nonsynchronous interface in the absence of clock forwarding |
US7061417B2 (en) * | 2003-11-26 | 2006-06-13 | Broadcom Advanced Compression Group Llc | Method and system for increased effective resolution in an N-bit digital-to-analog converter |
US7468722B2 (en) | 2004-02-09 | 2008-12-23 | Microsemi Corporation | Method and apparatus to control display brightness with ambient light correction |
WO2005099316A2 (en) | 2004-04-01 | 2005-10-20 | Microsemi Corporation | Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system |
US7755595B2 (en) | 2004-06-07 | 2010-07-13 | Microsemi Corporation | Dual-slope brightness control for transflective displays |
MX2008007417A (es) * | 2005-11-07 | 2008-10-24 | Robert D Washburn | Componentes pasivos variables con seleccion y control de valor de alta resolucion. |
US7414371B1 (en) | 2005-11-21 | 2008-08-19 | Microsemi Corporation | Voltage regulation loop with variable gain control for inverter circuit |
US7569998B2 (en) | 2006-07-06 | 2009-08-04 | Microsemi Corporation | Striking and open lamp regulation for CCFL controller |
US8093839B2 (en) * | 2008-11-20 | 2012-01-10 | Microsemi Corporation | Method and apparatus for driving CCFL at low burst duty cycle rates |
WO2013138990A1 (en) * | 2012-03-20 | 2013-09-26 | Texas Instruments Incorporated | Pwm duty cycle synthesizer and method with adjustable corner frequency |
CN104808736B (zh) * | 2015-04-24 | 2016-04-13 | 深圳市振邦智能科技有限公司 | 一种pwm控制电压的补偿方法 |
CN115347896B (zh) * | 2022-10-17 | 2023-01-17 | 英彼森半导体(珠海)有限公司 | 一种高精度dc信号源 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4023660A (en) * | 1973-09-29 | 1977-05-17 | Ferranti, Limited | Follow-up servo systems for clutches |
JPS54134669A (en) * | 1978-04-11 | 1979-10-19 | Citizen Watch Co Ltd | Electronic watch |
US4408166A (en) * | 1980-12-29 | 1983-10-04 | Altex Scientific, Inc. | Pulse width modulation decoder |
JPS59147532A (ja) * | 1983-02-14 | 1984-08-23 | Hitachi Ltd | 検波回路 |
US5041831A (en) * | 1988-04-26 | 1991-08-20 | Hewlett-Packard Company | Indirect D/A converter |
US4870665A (en) * | 1988-08-04 | 1989-09-26 | Gte Government Systems Corporation | Digital pulse generator having a programmable pulse width and a pulse repetition interval |
US5177481A (en) * | 1990-08-01 | 1993-01-05 | Mita Industrial Co., Ltd. | Data generator for controlling pulse width |
-
1991
- 1991-09-06 US US07/756,241 patent/US5130565A/en not_active Expired - Lifetime
-
1992
- 1992-06-08 CA CA002070712A patent/CA2070712C/en not_active Expired - Fee Related
- 1992-08-28 JP JP4253880A patent/JPH05252354A/ja active Pending
- 1992-09-04 EP EP92308072A patent/EP0531168B1/de not_active Expired - Lifetime
- 1992-09-04 DE DE69218523T patent/DE69218523T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69218523D1 (de) | 1997-04-30 |
US5130565A (en) | 1992-07-14 |
CA2070712C (en) | 1999-04-20 |
EP0531168B1 (de) | 1997-03-26 |
EP0531168A1 (de) | 1993-03-10 |
JPH05252354A (ja) | 1993-09-28 |
CA2070712A1 (en) | 1993-03-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |