| ReturnTo Theme-Group-Choice | Onelevelup |
| 5H750 | AC-AC Conversion | |
| H02M5/00 -5/48 | ||
| H02M5/00-5/48 | AA | AA00 PURPOSE AND APPLICATIONS |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | AA09 | AA10 |
| . Noise reduction or prevention | . Improvement of waveforms | . . Suppression of harmonics | . Improvement of the power factor | . Temperature or heat compensation | . Testing, monitoring, or recording | . Providing for redundancy | . Use for induction heaters | . Use for regeneration | . Use for motors | |||
| BA | BA00 TYPES OF CONVERTERS |
BA01 | BA02 | BA03 | BA05 | BA06 | BA07 | BA08 | BA09 | |||
| . Stationary types | . Rotary types | . Stationary and rotary types | . Variants without DC conversion (i.e., AC-AC) | . . Cycloconverters | . Variants with DC conversion (e.g., AC-DC-AC) | . . Combinations of rectifier circuits and inverter circuits | . . . Multiplex or polyphase combinations | |||||
| BB | BB00 CYCLOCONVERTERS |
BB01 | BB02 | BB04 | BB05 | |||||||
| . Forms | . . Circulating-current types | . . Non-circulating-current types | . . . Variants that use current-zero-point detection | |||||||||
| BB11 | BB12 | BB13 | BB14 | BB15 | BB16 | BB17 | BB18 | |||||
| . Main circuit connections | . . Symmetrical types | . . . Symmetrical two-pulse bridge connections | . . . Symmetrical three-pulse neutral-point connections | . . . Symmetrical six-pulse neutral-point connections | . . . Symmetrical six-pulse bridge connections | . . . Symmetrical twelve-pulse neutral-point connections | . . . Symmetrical twelve-pulse bridge connections | |||||
| BB22 | BB23 | BB24 | BB25 | BB26 | BB27 | BB29 | BB30 | |||||
| . . V types | . . . V-shaped three-pulse neutral-point connections | . . . V-shaped six-pulse bridge connections | . . Triangular types | . . . Triangular three-pulse neutral-point connections | . . . Triangular six-pulse bridge connections | . . Cascade connections | . . Other connections | |||||
| CC | CC00 CONVERTING ELEMENTS |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC07 | CC08 | CC09 | CC10 | |
| . Semiconductor elements | . . Diodes | . . Thyristors | . . . Gate turn-off (GTO) | . . . Triode AC switches (TRIAC) | . . Transistors | . . . Field-effect transistors (FET) | . Relays | . Electron tubes | . Other switching elements (i.e., including items with no limitations) | |||
| CC11 | CC12 | CC14 | CC15 | CC16 | CC17 | CC20 | ||||||
| . Transformers | . . Serial transformers | . Capacitors | . Resistors | . Reactors | . . Saturable reactors | . Combinations of different elements | ||||||
| DD | DD00 CONVERSION MODES |
DD01 | DD02 | DD03 | DD04 | DD05 | DD06 | DD07 | ||||
| . Frequency conversion | . . Conversion to high frequencies | . . . Variants that use whole-number multiples | . . . Variants that use resonance circuits | . . Conversion to low frequencies | . . . Synthesis of positive and negative half-waves | . . Optional conversion to either low or high frequencies | ||||||
| DD11 | DD12 | DD13 | DD14 | DD15 | DD16 | DD17 | DD18 | DD19 | ||||
| . Phase conversion | . . Number of input phases | . . . Single-phase or two-phase types | . . . Three-phase types | . . . Four or more phases | . . Number of output phases | . . . Single-phase or two-phase types | . . . Three-phase types | . . . Four or more phases | ||||
| DD21 | DD22 | DD23 | DD25 | DD26 | DD27 | |||||||
| . Phase conversion | . . Variants that advance phases | . . Variants that delay phases | . Voltage conversion | . . Boosting | . . Voltage step-down | |||||||
| EE | EE00 COMMUTATION |
EE01 | EE02 | EE03 | EE04 | EE05 | EE06 | |||||
| . Separate excitation | . . Load commutation | . . Power source commutation | . Self-excitation | . . Variants that have commutation circuits | . Self-excitation and separate excitation | |||||||
| FF | FF00 SENSING |
FF01 | FF02 | FF03 | FF04 | FF05 | FF06 | FF07 | FF08 | FF09 | FF10 | |
| . Sensing electrical variables | . . Current values | . . Zero current | . . Current phases | . . Voltage values | . . Zero voltage | . . Voltage phases | . . Electrical power | . . . Reactive power | . . Power factor | |||
| FF11 | FF12 | FF13 | ||||||||||
| . Sensing non-electrical variables | . . Temperature or heat | . . Load states | ||||||||||
| GG | GG00 PROTECTION |
GG01 | GG02 | GG03 | GG04 | GG05 | GG06 | GG08 | GG10 | |||
| . Condition protected against | . . Overvoltage | . . Undervoltage | . . Overcurrent | . . Undercurrent | . . Compensation for source voltage fluctuation | . . Commutation failure | . . Overload | |||||
| GG11 | GG12 | GG13 | GG14 | GG15 | GG16 | GG17 | ||||||
| . Operation while protecting | . . Continual operation | . . . Phase-interruption operation | . . Stopping | . . . Load cutoff | . . . Power source cutoff | . . . Stopping converters | ||||||
| HH | HH00 STARTING AND STOPPING |
HH01 | HH02 | HH05 | ||||||||
| . Starting | . . Soft starts | . Stopping | ||||||||||
| JJ | JJ00 STRUCTURE |
JJ01 | JJ02 | JJ03 | JJ04 | JJ06 | JJ08 | |||||
| . Arrangement | . . Converting element installation | . . . Installation of transformers | . . . Installation of semiconductor elements | . Wiring | . Cooling |