F-Term-List

H02P8/00-8/42

AA00
USE

AA01

AA02

AA03

AA04

AA05

AA06

AA07

AA08

AA10

. Time-pieces

. Magnetic or optical recording or reproducing devices

. Machine tools manufacturing machines or robots

. Optical machines e.g. cameras or copiers

. Printers or plotters

. XY plotters

. Facsimile machines

. Electrical equipments for automobiles

. Others *

BB00
PURPOSE

BB01

BB02

BB03

BB04

BB05

BB06

BB07

BB08

BB09

BB10

. savings energy or improving efficiency

. reducing noise or mechanical vibration

. reducing electrical noise

. Resistance to environmental conditions

. Increasing reliability or safety

. preventing step-out

. preventing torque ripple or torque variations

. Maintenance or testing

. Increasing accuracy

. Others *

CA00
BASIC FORM OF ELECTRIC MOTOR

CA01

CA02

CA03

CA05

CA06

CA08

CA10

. Variable reluctance motors

. Permanent-magnet motors

. Hybrid motors

. Bipolar motors

. Linear motors

. Bifilar winding

. Multi-stage motors

CA11

CA12

CA13

CA15

CA16

CA20

. Single-phase stepping motors

. Multi-phase stepping motors

. . Five-phase stepping motors

. Unipolar motors

. Bipolar motors

. Others *

CB00
EXCITATION SYSTEM OF ELECTRIC MOTOR

CB01

CB02

CB03

CB04

CB08

CB10

. Excitation systems

. . Single-phase

. . Two-phase

. . Single and two phase

. Switching excitation systems

. Others *

DD00
POWER SUPPLY

DD01

DD02

DD03

DD05

DD07

DD10

. Cells

. . Solar cells

. . Secondary cells

. driven by stabilised power supplies

. having plural power supplies

. Others *

EE00
DRIVE ELEMENT

EE01

EE02

EE03

EE04

EE05

EE06

EE07

EE08

EE10

. Semiconductor elements

. . Transistors

. . . Field-effect transistors (FET)

. . . Isolated-gate bipolar transistors (IGBT)

. . Thyristors

. . . Gate turn-off thyristors (GTO)

. . . Triode alternating-current switches (TRIAC)

. Integrated elements

. Others *

FA00
CONTROL, CALCULATION, OR DRIVING

FA01

FA02

FA03

FA04

FA10

. Feedback controlling

. . of currents

. . of speeds

. . of positions

. switching control systems

FA11

FA12

FA13

FA14

FA19

. Constituent means for control or computing units

. . composed of analogue elements only

. . including digital elements

. . . using computers

. having elements of hysteresis characteristics

FA21

FA22

FA23

FA24

FA25

FA26

FA28

FA29

. Methods for exciting electric motors

. . controlling pulse width of driving pulses

. . controlling amplitude of driving pulses

. . controlling interval of driving pulses

. . . avoiding specific pulse intervals or pulse frequencies

. . . using multiple oscillators

. . controlling pulse width or pulse interval according to power supply voltage

. . controlling pulse width or pulse amplitude according to pulse intervals

FA32

FA33

FA35

FA40

. . controlling energy induced in coils

. . . using induced energy effectively

. . controlling by using sine-wave driving pulses

. Others *

FB00
METHOD OF OPERATION

FB01

FB03

FB05

FB07

FB10

. Micro-step controls

. having bidirectional operations

. controlling plural stepping motors

. driving motors other than stepping motors in steps

. Others *

FC00
STARTING

FC01

FC02

FC03

FC04

FC06

FC07

FC08

FC09

FC10

. with high-torque starting

. . changing currents

. . using multiple voltages

. . changing pulse widths

. Positioning before starting

. . using limit switches

. . using stoppers

. Soft starts

. Others *

FD00
STOPPING

FD01

FD02

FD03

FD04

FD05

FD06

FD07

FD08

FD09

. High-torque braking

. preventing rotor vibration during stopping

. . feeding back sensor outputs

. . controlling excitation currents

. . controlling with the voltage induced in non-excited phases

. . with reverse-phase excitation or reverse braking

. . using mechanical braking means

. . providing ideal poles

. . changing the timing of phase switching

FD11

FD12

FD13

FD14

FD15

FD16

FD17

FD18

. with fine-pitch control near the target position

. eliminating displacement of stop positions

. keeping the positions after stopping

. . changing currents

. . changing voltages

. disconnecting power supply when stopping

. memorising the stop position when stopping

. Others *

GG00
SETTING UNIT

GG01

GG03

GG04

GG08

GG10

. by analogue units

. by digital units

. . using memories

. switching the setting values

. Others *

HH00
DETECTION VARIABLES OR DETECTING MEANS

HH01

HH02

HH04

HH06

HH08

HH09

. Detecting positions or speeds

. . Pulse encoders

. . Selsyns or self-synchronising motors

. . Limit switches

. . optically

. . magnetically

HH12

HH13

HH14

HH15

HH16

. . without sensors

. . . detecting electric variables

. . . . Currents

. . . . Voltages

. . . . Counter electromotive forces

HH21

HH22

HH23

HH24

HH25

HH27

HH28

. Detecting electric variables *

. . Currents

. . Voltages

. . Counter electromotive forces

. . Power-factors

. Detecting magnetic variables

. . Magnetic fluxes

HH31

HH33

HH35

HH37

HH39

HH40

. Torques

. Loads

. Directions of rotation

. Temperatures

. Step-out

. Others *

JJ00
PROTECTION, COMPENSATION, SUPERVISION OR INDICATION

JJ01

JJ02

JJ03

JJ04

JJ05

JJ06

JJ07

JJ09

. Protections

. . Step-out

. . Overcurrents

. . Overvoltages

. . Overloads

. . Overspeeds

. . Overheating

. Supervision or indication

JJ11

JJ12

JJ13

JJ20

. against momentary power outages

. against power-supply voltage variations

. against other disturbances

. Others *

KK00
APPARATUS FOR TRANSMISSION BETWEEN ELECTRIC MOTORS AND LOADS

KK01

KK02

KK03

KK04

KK05

KK10

. Couplings

. Clutches

. Gears

. Cams

. Pulleys

. Others *

5H580	CONTROL OF STEPPING MOTORS
	H02P8/00 -8/42