H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
Introduced: September 1968
Description
H02M encompasses apparatus and methods for converting electrical power between different forms: AC-to-AC, AC-to-DC, and DC-to-DC conversions, as well as generating surge or pulse output from steady input power. This subclass covers rectifiers, inverters, frequency converters, voltage regulators, power supplies, and associated control and regulation circuits designed for use with utility mains, battery systems, or similar primary power sources. The classification includes both the converter hardware (transformers, semiconductor switching devices, reactive components) and control systems that manage conversion efficiency, output stability, and protection against electrical faults. Related switching power supplies, uninterruptible power supplies (UPS), and stabilized voltage/frequency supplies fall within this scope.
Title
Titles differ between systems:
IPC: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
CPC: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
Full Title
Full titles differ between systems:
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
Additional Content IPC
Glossary
conversion conversions In respect of an electric variable, e.g. voltage or current, conversion means the change of one or more of the parameters of the variable, e.g. amplitude, frequency, phase or polarity.
Limiting references
Transformers Dynamo-electric converters Controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters
Application references
Conversion of current or voltage specially adapted for use in electronic time-pieces with no moving parts for digital computers
Of 6 combined children, 5 exist in both systems.
1 codes exist only in IPC.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H02M 11/00 Power conversion systems not covered by the preceding groups since 1985 IPC+CPC Available in IPC and CPC
- H02M 5/00 Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases +1 CPC IPC+CPC Available in IPC and CPC
- H02M 7/00 Conversion of AC power input into DC power output; Conversion of DC power input into AC power output +2 CPC IPC+CPC Available in IPC and CPC
- H02M 9/00 Conversion of DC or AC input power into surge output power since 1974 −2 IPC IPC only IPC only
Top Applicants
Top Applicants (IPC)
Class H02,2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 54,496
- MITSUBISHI ELECTRIC CORPORATION JP 10,495
- TOYOTA MOTOR CORPORATION 9,464
- GUANGDONG POWER GRID CORPORATION 9,339
- ROBERT BOSCH DE 8,226
- SIEMENS DE 8,218
- DENSO CORPORATION 7,063
- MITSUBISHI ELECTRIC CORPORATION 6,619
- SAMSUNG ELECTRONICS COMPANY KR 5,826
- GREE ELECTRIC APPLIANCES 5,094
Top Applicants (CPC)
Class H02,2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 24,515
- MITSUBISHI ELECTRIC CORPORATION JP 11,346
- SIEMENS DE 9,026
- ROBERT BOSCH DE 9,005
- SAMSUNG ELECTRONICS COMPANY KR 6,729
- GUANGDONG POWER GRID CORPORATION 5,740
- DENSO CORPORATION JP 5,077
- LG ELECTRONICS KR 5,041
- LG INNOTEK COMPANY KR 4,442
- TOYOTA MOTOR CORPORATION 4,349