IPC 7 English version H02M !A-H02M 5/48

IPC ⁷ English version

H02M-H02M00548

H02M 7/00 - H02M 11/00

SECTION H – ELECTRICITY

H 02

GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER

H 02 M

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 (conversion of current or voltage specially adapted for use in electronic time-pieces with no moving parts G04G 19/02; systems for regulating electric or magnetic variables in general, e.g. using transformers, reactors or choke coils, combination of such systems with static converters G05F; for digital computers G06F 1/00; transformers H01F; connection or control of one converter with regard to conjoint operation with a similar or other source of supply H02J; dynamo-electric converters H02K 47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P; pulse generators H03K) [4,5]

Notes

(1)

This subclass covers only circuits or apparatus for the conversion of electric power, or arrangements for control or regulation of such circuits or apparatus.

(2)

This subclass does not cover the individual electro-technical devices employed when converting electric power. Such devices are covered by the relevant subclasses, e.g. inductors, transformers H01F, capacitors, electrolytic rectifiers H01G, mercury-vapour rectifying or other discharge tubes H01J, semiconductor devices H01L, impedance networks or resonant circuits not primarily concerned with the transfer of electric power H03H.

(3)

In this subclass, the following term is used with the meaning indicated:

–

"conversion", in respect of an electric variable, e.g. voltage or current, means the change of one or more of the parameters of the variable, e.g. amplitude, frequency, phase, polarity. [4]

Subclass Index

DETAILS

H02M 1/00

TYPES OF CONVERSION

dc to dc

H02M 3/00

ac to ac

H02M 5/00

ac to dc and vice versa

H02M 7/00

dc or ac to surge output power

H02M 9/00

other power conversion systems

H02M 11/00

Details of apparatus for conversion

Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters

for tubes with grid control

Circuits specially adapted for rendering non-conductive gas discharge tubes or equivalent semiconductor devices, e.g. thyratrons, thyristors [2]

Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters

084

using a control circuit common to several phases of a multi-phase system [4]

088

for the simultaneous control of series or parallel connected semiconductor devices [4]

092

the control signals being transmitted optically [4]

096

the power supply of the control circuit being connected in parallel to the main switching element (H02M 1/092 takes precedence) [4]

Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc

Arrangements for reducing harmonics from ac input or output

Arrangements for reducing ripples from dc input or output

using active elements [4]

Means for providing current step on switching, e.g. with saturable reactor

Contact mechanisms of dynamic converters

incorporating collectors and brushes

incorporating rolling or tumbling contacts

incorporating cam-operated contacts

incorporating electromagnetically-operated vibrating contacts

incorporating liquid contacts

Conversion of dc power input into dc power output

without intermediate conversion into ac

by static converters

using resistors or capacitors, e.g. potential divider

using capacitors charged and discharged alternately by semiconductor devices with control electrode [4]

using discharge tubes without control electrode or semiconductor devices without control electrode

using discharge tubes with control electrode or semiconductor devices with control electrode (H02M 3/07 takes precedence) [4]

125

using devices of a thyratron or thyristor type requiring extinguishing means [2]

using discharge tubes only [2]

135

using semiconductor devices only [2]

137

with automatic control of output voltage or current, e.g. switching regulators [4]

139

with digital control [4]

142

including plural semiconductor devices as final control devices for a single load [4]

145

using devices of a triode or transistor type requiring continuous application of a control signal [2]

using discharge tubes only [2]

155

using semiconductor devices only [2]

156

with automatic control of output voltage or current, e.g. switching regulators [4]

157

with digital control [4]

158

including plural semiconductor devices as final control devices for a single load [4]

by dynamic converters

using capacitors or batteries which are alternately charged and discharged, e.g. charged in parallel and discharged in series

by combination of static with dynamic converters; by combination of dynamo-electric with other dynamic or static converters

with intermediate conversion into ac

by static converters

using discharge tubes without control electrode or semiconductor devices without control electrode to produce the intermediate ac

using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac

305

using devices of a thyratron or thyristor type requiring extinguishing means [2]

using discharge tubes only [2]

315

using semiconductor devices only [2]

325

using devices of a triode or a transistor type requiring continuous application of a control signal [2]

using discharge tubes only [2]

335

using semiconductor devices only [2]

337

in push-pull configuration [4]

338

in a self-oscillating arrangement (H02M 3/337 takes precedence) [4]

by dynamic converters

using mechanical parts to select progressively or to vary continuously the input potential

using mechanical contact-making and -breaking parts to interrupt a single potential

wherein the parts are rotating and collectors co-operate with brushes or rollers

with electromagnetically-operated vibrating contacts, e.g. chopper (self-interrupters in general H01H 51/34)

by combination of static with dynamic converters; by combination of dynamo-electric with other dynamic or static converters

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

without intermediate conversion into dc

by static converters (controlling transformers, reactors or choke coils, e.g. by tap changing, H02P 13/00) [4]

using impedances

using capacitors only

using transformers

for conversion of voltage or current amplitude only

for conversion between circuits of different phase number

for conversion of frequency

for conversion of waveform

using discharge tubes without control electrode or semiconductor devices without control electrode

using discharge tubes with control electrode or semiconductor devices with control electrode

using devices of a thyratron or thyristor type requiring extinguishing means (H02M 5/27 takes precedence) [2]

253

using discharge tubes only [2]

257

using semiconductor devices only [2]

for conversion of frequency [2]

275

using devices of a triode or transistor type requiring continuous application of a control signal (H02M 5/297 takes precedence) [2]

using discharge tubes only [2]

293

using semiconductor devices only [2]

297

for conversion of frequency [2]

by dynamic converters

using mechanical contact-making and -breaking parts

wherein the parts are rotating and collectors co-operate with brushes or rollers

by combination of static with dynamic converters; by combination of dynamo-electric with other dynamic or static converters

with intermediate conversion into dc

by static converters

using discharge tubes or semiconductor devices to convert the intermediate dc into ac

443

using devices of a thyratron or thyristor type requiring extinguishing means [2]

447

using discharge tubes only [2]

using semiconductor devices only [2]

451

with automatic control of output voltage or frequency [4]

452

with automatic control of output waveform [4]

453

using devices of a triode or transistor type requiring continuous application of a control signal [2]

456

using discharge tubes only [2]

458

using semiconductor devices only [2]

by dynamic converters

by combination of static with dynamic converters; by combination of dynamo-electric with other dynamic or static converters

H02M 7/00 - H02M 11/00