ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H02P0007240000 using discharge tubes or semiconductor devices 1
H02P0007260000 using discharge tubes 1
H02P0007280000 using semiconductor devices 1
H02P0007281000 the DC motor being operated in four quadrants 1
H02P0007282000 controlling field supply only 1
H02P0007285000 controlling armature supply only 1
H02P0007288000 using variable impedance 1
H02P0007290000 using pulse modulation 1
H02P0007291000 with on-off control between two set points, e.g. controlling by hysteresis 1
H02P0007292000 using static converters, e.g. AC to DC 1
H02P0007293000 using phase control (H02P0007295000 takes precedence);; 1
H02P0007295000 of the kind having one thyristor or the like in series with the power supply and the motor 1
H02P0007298000 controlling armature and field supplies 1
H02P0007300000 using magnetic devices with controllable degree of saturation, i.e. transductors 1
H02P0007320000 using armature-reaction-excited machines, e.g. metadyne, amplidyne, rototrol 1