H02M 7/525
With automatic control of output waveform or frequency
Official title: with automatic control of output waveform or frequency (H02M7/517 - H02M7/523 take precedence)
H02M7/525 (With automatic control of output waveform or frequency) appears on 240 US grants and 70 published applications in this corpus.
Search patents in H02M- Granted patents
- 240
- Published applications
- 70
- Assignees
- 120
- Inventors
- 429
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 11 | 0 |
| 1978 | 10 | 0 |
| 1979 | 12 | 0 |
| 1980 | 8 | 0 |
| 1981 | 13 | 0 |
| 1982 | 8 | 0 |
| 1983 | 10 | 0 |
| 1984 | 18 | 0 |
| 1985 | 11 | 0 |
| 1986 | 18 | 0 |
| 1987 | 10 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 3 | 1 |
| 2004 | 0 | 0 |
| 2005 | 5 | 4 |
| 2006 | 0 | 4 |
| 2007 | 4 | 3 |
| 2008 | 2 | 2 |
| 2009 | 2 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 3 | 3 |
| 2013 | 0 | 2 |
| 2014 | 2 | 1 |
| 2015 | 3 | 2 |
| 2016 | 2 | 1 |
| 2017 | 2 | 3 |
| 2018 | 4 | 4 |
| 2019 | 4 | 4 |
| 2020 | 5 | 4 |
| 2021 | 1 | 7 |
| 2022 | 7 | 1 |
| 2023 | 7 | 10 |
| 2024 | 3 | 5 |
| 2025 | 6 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power converter module18 Aug 2026US 12,712,469 B2Texas Instruments Incorporated
- Inverter systems featuring hybrid TCM/CCM modulation scheme4 Nov 2025US 12,463,557 B2Infineon Technologies Austria AG
- Two-stage electrical controlling system and electrical apparatus7 Oct 2025US 12,438,450 B2Contemporary Amperex Technology (Hong Kong) Limited
- RF band power supply device and pulse width modulation control method3 Jun 2025US 12,323,074 B2Kyosan Electric Mfg. Co., Ltd.
- Control method and apparatus for high-voltage, direct current first commutation failure in alternating-current fault22 Apr 2025US 12,283,821 B2China Southern Power Grid
- Smart turn-off logic for high power converters and inverters18 Jun 2026US 2026/0167001 A1Cummins Power Generation Inc.
- Power converter with stability control29 Jan 2026US 2026/0031721 A1
- Carrier based model predictive control for converter with filter cells9 Oct 2025US 2025/0317072 A1
- Supply circuit for rendering controlled supply power14 Aug 2025US 2025/0260327 A1Schneider Electric Industries SAS
- Inverter systems featuring hybrid tcm/ccm modulation scheme10 Apr 2025US 2025/0119068 A1Infineon Technologies Austria AG
Most cited
By later US patents
- Voltage converter control apparatus, and method1,440US 7,199,537 B2Toyota Jidosha Kabushiki Kaisha · 2007
- Adjustable speed A-C motor drive with smooth transition between operational modes and with reduced harmonic distortion95US 4,047,083 AGeneral Electric Company · 1977
- Inverter circuit control circuit for precluding simultaneous conduction of thyristors79US 4,078,247 ARCA Corporation · 1978
- Metal base cookware induction heating apparatus having improved power control circuit for insuring safe operation78US 4,151,387 AEnvironment One Corporation · 1979
- Digital apparatus for synthesizing pulse width modulated waveforms and digital pulse width modulated control system73US 4,099,109 AWestinghouse Electric Corp. · 1978