G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
Introduced: September 1968
Description
G05F encompasses control systems that regulate electrical or magnetic variables to maintain them at desired values or within specified ranges. These systems include voltage regulators, current regulators, magnetic field controllers, and frequency stabilizers used in power supplies, electrical machinery, and electromagnetic devices. The subclass covers both analog and digital regulation methods, feedback control mechanisms, and various sensing and actuation technologies employed to achieve stable operation of electrical and magnetic parameters. Applications range from simple linear voltage regulators to complex switching power supplies and electromagnetic field management systems.
Additional Content IPC
Regulation of current or voltage specially adapted for use in electronic time-pieces Regulating power supply of digital computers Circuit arrangements for obtaining desired operating characteristics of electromagnets with armatures Regulating electric power distribution networks Regulating the charging of batteries Regulation of the output of static converters, e.g. switching regulators Regulation of the output of electric generators , Controlling transformers, reactors or choke coils Regulating frequency response, gain, maximum output, amplitude or bandwidth of amplifiers Regulating tuning of resonant circuits Controlling generators of electronic oscillations or pulses Regulating characteristics of transmission lines Controlling electric light sources , , , , Electric control of X-ray apparatus
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
Child Classifications
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- G05F 1/00 Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems IPC+CPC Available in IPC and CPC
- G05F 3/00 Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties IPC+CPC Available in IPC and CPC
- G05F 5/00 Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class G05,2013–2023, worldwide · Source: EPO PATSTAT
- SIEMENS DE 4,725
- SGCC(STATE GRID CORPORATION OF CHINA) 4,571
- FANUC JP 4,233
- MITSUBISHI ELECTRIC CORPORATION JP 3,143
- FANUC 2,981
- ROBERT BOSCH DE 2,813
- CHINESE ACADEMY OF SCIENCES 2,500
- LG ELECTRONICS KR 2,182
- OMRON CORPORATION JP 2,036
- SAMSUNG ELECTRONICS COMPANY KR 1,981
Top Applicants (CPC)
Class G05,2013–2023, worldwide · Source: EPO PATSTAT
- FANUC JP 6,367
- SIEMENS DE 5,963
- FANUC 4,535
- MITSUBISHI ELECTRIC CORPORATION JP 4,201
- ROBERT BOSCH DE 4,010
- LG ELECTRONICS KR 3,802
- SAMSUNG ELECTRONICS COMPANY KR 3,143
- FORD GLOBAL TECHNOLOGIES US 2,889
- TOYOTA MOTOR CORPORATION 2,778
- OMRON CORPORATION JP 2,743