F-Term-List

H02M3/00-3/44

AA00
PURPOSE

AA01

AA02

AA03

AA04

AA05

AA06

AA07

AA08

AA10

. preventing noise

. . from generating

. . from mixing

. improving environmental resistance or precisions

. . Temperature compensation

. . by circuit configurations (AA05 takes precedence)

. . . Redundancy of elements or circuits

. . by mounting methods (AA05 takes precedence)

. improving switching speed or switching in high frequencies

AA11

AA12

AA13

AA14

AA15

AA16

AA17

AA18

AA19

AA20

. Multi-functionalisation

. . Indication or monitoring

. . improving testing or maintenance

. improving conversion efficiency or reducing losses

. increasing capacity reducing size and weight or improving cost

. . by parallelising or dividing elements or circuits

. improving safety

. improving input power factors

. preventing biased magnetisation or saturated magnetisation of transformers or the like

. Protection of circuits or elements

AS00
APPLICATION

AS01

AS02

AS03

AS04

AS05

AS06

AS08

. Constant voltage power sources

. Constant current power sources

. Constant-power power sources

. High voltage or boosting power sources

. Bucking power sources

. No voltage conversion transformers for insulating purposes

. Reversible conversion power sources

AS11

AS12

AS13

AS14

AS15

AS16

AS17

AS18

AS19

. for lighting

. for heating

. for driving electric motors

. for electronic tubes

. . for cathode ray tubes (CRT)

. . for X-ray tubes

. for battery charging

. for strobes

. for electronic computers

AS21

AS22

AS23

. Uninterruptible power sources

. . Parallel operation

. . Standby operation

BB00
TYPE OF MAIN CONVERSION UNIT

BB01

BB02

BB03

BB04

BB05

BB06

BB08

BB09

. Charging and discharging conversion units i.e. series parallel switching

. . Boost types

. . Buck types

. . No voltage conversion types

. . Polarity changing types

. . Bi-directional types

. . using field effect transistors (FET) for electrical storage elements

. . using reactors for electrical storage elements

BB11

BB13

BB14

BB15

BB17

BB18

. Non-insulated chopper systems

. . BUCK types

. . BOOST types

. . BUCK-BOOST types

. . CUK types

. . Non-insulated SEPIC types

BB21

BB22

BB23

BB24

BB25

BB26

BB27

BB30

. Insulated inverter systems

. . FORWARD types

. . . One element

. . . Two elements

. . . . Push-pull

. . . Half bridges or single-ended

. . . Full bridges

. . Modified FORWARD

BB32

BB35

BB37

. . Insulated BOOST types

. . . Centre tap types

. . . Full-bridge types

BB42

BB43

BB44

BB47

BB48

. . FLYBACK types

. . . One element

. . . Two elements

. . Insulated CUK types

. . SEPIC types

BB51

BB52

BB53

BB54

BB55

BB57

. Non-resonance types

. . Self-excitation types

. . . by hysteresis

. . . by magnetic saturation of chokes

. . . by magnetic saturations of transformers

. . Separate excitation types e.g. those using oscillators

BB61

BB62

BB63

BB64

BB65

BB66

BB67

BB68

BB70

. Resonance types

. . Current resonance

. . . Full-wave resonance

. . . Half-wave resonance

. . . Partial resonance

. . . Series resonance

. . . Parallel resonance

. . . Series/parallel resonance

. . Multi resonance

BB72

BB73

BB74

BB75

BB76

BB77

BB78

BB80

. . Voltage resonance

. . . Full-wave resonance

. . . Half-wave resonance

. . . Partial resonance

. . . Series resonance

. . . Parallel resonance

. . . Series/parallel resonance

. . Insulated types including resonance elements also in the secondary sides

BB81

BB82

BB83

BB84

BB85

BB86

BB88

BB89

. with multiple conversion units

. . in parallel

. . . sharing conversion units partially

. . . Parallel operation of independent power sources

. . . outputs connected in series

. . in multi-stages

. . sharing control units and operation units

. . . by time division

BB91

BB92

BB94

BB95

BB96

BB98

. making control other than switching inside conversion units

. . Bias of switching elements

. . Variable reactors

. . Third winding in main transformers

. . Series droppers excluding those of input circuits or output circuits

. . Switching of terminals or elements

CC00
INPUT UNIT

CC01

CC02

CC03

CC04

CC05

CC07

CC10

. rectifying ac currents

. . Three-phase ac

. . with special filters including active circuits

. . with means of improving power factors

. . . by switching control

. . obtaining synchronising signals from input ac

. Constant current sources

CC11

CC12

CC13

CC14

CC16

CC17

. with multiple input sources

. . selecting inputs by switching

. . . carrying out automatic switching

. . simultaneously input

. . with different voltages in input sources

. . with different types of input sources

CC21

CC22

CC25

CC26

CC28

. with means for stabilising voltages

. . by dropper control

. . by switching control

. . . synchronised with main conversion units

. . feedbacking output values of main conversion units

DD00
SWITCHING UNIT IN MAIN CONVERSION UNIT

DD01

DD02

DD03

DD04

DD05

DD06

DD07

DD08

DD09

DD10

. Kinds of switching elements

. . Transistors

. . . Insulated gate bipolar transistors (IGBT)

. . . Field effect transistors (FET)

. . Thyristors (SCR)

. . . Gate turn-off thyristors (GTO)

. . . Bidirectional triode thyristors

. . . Electrostatic induction thyristors

. . Electronic tubes

. . Mechanical contacts or relays

DD11

DD12

DD13

DD14

DD15

DD16

DD17

. Connection modes of switching elements

. . Series connections

. . Parallel connections

. . Antiparallel connections

. . Darlington connections

. . Bridge connections

. . combining different elements

DD21

DD22

DD23

DD26

DD27

DD28

. driving switching elements

. . using drive transformers

. . . with third wiring in drive transformers

. . using drive transistors

. . . One element

. . . Two or more elements

DD31

DD32

DD33

DD34

DD35

. Drive waveforms

. . Rectangular waves

. . Trapezoidal waves

. . Triangular waves or sawtooth waves

. . Sinusoidal waves including partial sinusoidal waves

DD41

DD42

DD43

. with snubber circuits

. . Energy regeneration to input sides

. . Energy regeneration to output sides

EE00
OUTPUT UNIT

EE01

EE02

EE03

EE04

EE05

EE06

EE07

EE08

EE10

. with rectifier circuits

. . Half-wave rectifier circuits

. . with centre taps

. . Bridge rectifier circuits

. . Hybrid bridge rectifier circuits

. . Voltage multiplier rectifier circuits

. . C output

. . L output

. . with flywheel diodes

EE12

EE13

EE14

EE16

EE17

EE18

EE19

. . Rectifier elements with control terminals

. . . output not being controlled e.g. synchronous rectification

. . . . Transistors

. . . with output control

. . . . Thyristors

. . . . Transistors

. . . . Field-effect transistors (FET)

EE21

EE22

EE23

EE24

EE25

EE27

EE28

EE30

. for controlling or stabilising outputs excluding dummies

. . by using non-insulated choppers

. . . BUCK types

. . . BOOST types

. . . BUCK-BOOST types

. . . CUK types

. . . Non-insulated SEPIC types

. . . Resonance types

EE33

EE34

EE35

EE36

EE37

EE38

EE39

. . . Non-resonance types

. . . . Self-excitation types

. . . . by using hysteresis

. . . . by using magnetic saturation of chokes

. . . . Separate excitation types

. . . . . with independent oscillators

. . . . . synchronising with main conversion units

EE42

EE43

EE44

EE45

EE46

EE47

EE48

EE49

. . by using means other than switching control

. . . Series droppers

. . . using variable reactors

. . . using saturable reactors

. . . . using magnetic amplifiers

. . . using ferroresonance circuits

. . . using piezo-electric transformers

. . . using special filters

EE51

EE52

EE53

EE54

EE56

EE57

EE58

EE59

EE60

. with dummy loads

. . being controlled

. . . by dropper control

. . . by switching control

. Methods of controlling or stabilising outputs

. . by input voltage or current values of input units

. . by signals from main conversion units or main operation units

. . by feedback of output values

. . switching terminals or elements

EE61

EE62

EE63

EE65

EE66

. with multiple outputs

. . with correlations between outputs

. . . adjusting balances of positive and negative outputs

. . by branching outputs halfway

. . . by using choke transformers

EE72

EE73

EE74

EE75

EE76

EE77

EE78

EE79

EE80

. . with multiple windings in transformers

. . . Multi outputs

. . . . Positive and negative outputs

. . . Parallel connections

. . . Series connections

. . . with switching circuits

. . . having circuit types different in any kind

. . . . with ac outputs

. with input voltages or input currents

FD00
SIGNAL DETECTION

FD01

FD02

FD03

FD07

FD08

FD09

. of output voltages

. . Differentiated values

. . Integrated values or mean values

. . using non-resistive elements

. . . using choke coils or choke transformers

. . Detection of increases over threshold limit values by using Zener diodes

FD11

FD12

FD13

FD17

FD18

FD19

. of input voltages

. . Differentiated values

. . Integrated values or mean values

. . using non-resistive elements

. . . using choke coils or choke transformers

. . Detection of increments of threshold limit values by Zener diodes

FD21

FD22

FD23

FD24

FD25

FD26

FD27

FD28

FD29

FD30

. of other voltage

. . Differentiated values

. . Integrated values or mean values

. . from transformer windings

. . . of flyback voltages

. . of switching elements

. . using non-resistive elements

. . using choke coils or choke transformers

. . Detection of increments of threshold limit values by Zener diodes

. Special voltage divider circuits

FD31

FD32

FD33

FD37

FD38

. of output currents

. . Differentiated values

. . Integrated values or mean values

. . using non-resistive elements

. . using choke coils or choke transformers

FD41

FD42

FD43

FD47

FD48

. of input currents

. . Differentiated values

. . Integrated values or mean values

. . using non-resistive elements

. . using choke coils or choke transformers

FD51

FD52

FD53

FD57

FD58

. of other current

. . Differentiated values

. . Integrated values or mean values

. . using non-resistive elements

. . using choke coils or choke transformers

FD61

FD62

FD67

FD68

. other than voltages or currents

. . of frequency changes

. . using non-resistive elements

. . using choke coils or choke transformers

FF00
COMPARISON UNIT, OPERATION UNIT OR SIGNAL TRANSMISSION UNIT

FF01

FF02

FF03

FF05

FF06

FF07

FF08

FF09

FF10

. Analogue operations e.g. comparison operations

. . using triangle waves or sawtooth waves

. . Variable inclination of triangle waves

. . using hysteresis comparators

. making digital operations

. . using overflow pulses of counters

. . by comparing with contents of registers

. . using microcomputers or central processing units (CPU)

. using phase locked loop (PLL) circuits

FF11

FF13

FF15

FF16

FF17

FF18

FF19

. directly comparing multiple variables

. making non-linear signal processing

. characterised by transmitting signals

. . remotely

. . transmitting insulated signals

. . . using transmission transformers

. . . using photocouplers

FG00
CONTROL MODE

FG01

FG02

FG03

FG04

FG05

FG06

FG07

FG08

FG09

FG10

. On/off control

. Pulse width control

. . On-width control with off-widths constant

. . Off-width control while making on-widths constant

. . Duty control or pulse width modulation (PWM)

. Pulse amplitude control i.e. pulse amplitude modulation (PAM)

. Frequency control i.e. pulse frequency modulation (PFM)

. Pulse number control

. Resonance frequency control

. Control by synthesising waveforms having different phases

FG11

FG12

FG15

FG16

FG17

FG18

. Sampling control

. Programme control

. Synchronous control

. . of multiple conversion units

. . of multiple power sources

. . with other apparatus e.g. televisions or computers

FG21

FG22

FG23

FG24

FG25

FG26

FG30

. Control accompanied by mode changes

. . of control methods (FG01-FG12)

. . of conversion modes e.g. from dropper to switching

. . of applications e.g. from constant voltage to constant current and vice versa

. . of reference values or feedback values

. . by input voltage or input current

. without stabilisation control

FV00
MANUAL SETTING OR CHANGE

FV01

FV02

FV03

FV04

FV05

FV07

FV08

FV09

. Contents of changes

. . of control methods (FG01-FG12)

. . of conversion modes e.g. from droppers to switching

. . of applications e.g. from constant voltage to constant current and vice versa

. . of reference values or feedback values

. Setting means

. . by using voltage dividers or variable resistors

. . by using digital values

VV00
AUXILIARY POWER SOURCE

VV01

VV02

VV03

VV06

. having another power source for control units

. . of non-insulated chopper systems

. . of insulated inverter systems

. having another power source for starting

XC00
STARTING OR STOPPING

XC01

XC02

XC03

XC04

XC05

XC06

XC07

XC09

. Starting

. . of the entire power source

. . . Quick starts

. . . Soft starts

. . . . by using timers

. . . . making sequential starting

. . . . . relating to other apparatus

. . . . with means to prevent rush currents

XC12

XC13

XC14

XC16

XC17

XC19

XC20

. . of drive units or conversion units

. . . Quick starts

. . . Soft starts

. . . Pulse width control

. . . by the PFM control

. Manual stopping

. by remote control

XX00
PROTECTION OR PREVENTION

XX01

XX02

XX03

XX04

XX05

XX06

XX09

. Abnormal regions

. . Input or input units

. . Output or output units

. . Conversion units i.e. switching units

. . . Simultaneous conducting

. . . Commutation failure

. . Control units or feedback units

XX11

XX12

XX13

XX14

XX15

XX16

XX18

XX19

. Contents of abnormalities

. . Overvoltages

. . Voltage drops

. . . Power failure or no outputs

. . Overcurrents

. . Overpower or overloads

. . Current unbalances or voltage unbalances

. . Heat generation

XX21

XX22

XX23

XX24

XX25

XX26

XX27

XX28

XX29

XX30

. Abnormality detection regions

. . Inputs or input units

. . Outputs or output units

. . Conversion units

. . . Switching circuits

. . . . Switching elements

. . . Main transformers

. . . . Detection windings

. . Control units or feedback units

. . . Main control signals per se

XX31

XX32

XX33

XX35

XX36

XX37

XX38

XX40

. Contents of detection

. . Overvoltage

. . Voltage drops

. . Current

. . Pulse duty

. . Frequencies

. . Temperatures

. . taking account of time or frequencies of abnormalities

XX41

XX42

XX43

XX44

XX45

XX46

XX47

XX48

XX49

XX50

. Protection means

. . by stopping

. . . of switching elements directly

. . . of control circuits

. . . taking account of resetting or restarting

. . . by breaking elements

. . by droop control

. . . half recovery

. . warning or indicating

ZZ00
MECHANICAL STRUCTURE OR MATERIAL QUALITY

ZZ01

ZZ04

ZZ05

ZZ07

ZZ09

. Housings or whole structure

. Wiring structures

. . Connectors or terminals

. Cooling structures

. Shield structures

ZZ11

ZZ12

ZZ13

ZZ15

ZZ16

ZZ17

ZZ18

ZZ19

. Arrangements of elements or parts

. Mounting structures of elements or parts

. . of switching elements

. Structures material qualities or materials of elements or parts per se

. . of main transformers

. . of reactors

. . . of saturable reactors

. . of piezo-electric transformers

5H730	DIRECT CURRENT-DIRECT CURRENT (DC-DC) CONVERTERS
	H02M3/00 -3/44