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  2. Phase shift module - Wikipedia

    en.wikipedia.org/wiki/Phase_shift_module

    A microwave (6 to 18 GHz) Phase Shifter and Frequency Translator. A phase shift module is a microwave network module which provides a controllable phase shift of the RF signal. [1] [2] [3] Phase shifters are used in phased arrays. [4] [5] [6]

  3. Electronic gear-shifting system - Wikipedia

    en.wikipedia.org/wiki/Electronic_gear-shifting...

    During shifting, this segment is pushed sideways by a relay operated mechanism like a railroad switch and picks up the chain that is currently running on the next cog. [2] In 1992 the French manufacturer Mavic introduced their first electronically controlled gear shift mechanism called Zap at the 1992 Tour de France. It was a prototype, but it ...

  4. Phase converter - Wikipedia

    en.wikipedia.org/wiki/Phase_converter

    An American Rotary Phase Converter with a Transformer. A phase converter is a device that converts electric power provided as single phase to multiple phase or vice versa. The majority of phase converters are used to produce three-phase electric power from a single-phase source, thus allowing the operation of three-phase equipment at a site that only has single-phase electrical service.

  5. Shift-by-wire - Wikipedia

    en.wikipedia.org/wiki/Shift-by-wire

    The main components of a park by wire system include the driver interface which could be a lever, switch, or knob; an electronic control unit; and actuators which are capable of driving the parking pawl into and out of the locking position with the parking gear of the transmission. [2] [better source needed]

  6. Brake-by-wire - Wikipedia

    en.wikipedia.org/wiki/Brake-by-wire

    The controller provides drive control commands for a power control module. This module controls three phase drive currents for the brake actuator which is a permanent magnet DC motor, energised by 42 V sources. In addition to tracking its reference brake command, the caliper controller also controls the position and speed of the brake actuator.

  7. Quadrature booster - Wikipedia

    en.wikipedia.org/wiki/Quadrature_booster

    400 MVA 220/155 kV phase-shifting transformer.. A phase angle regulating transformer, phase angle regulator (PAR, American usage), phase-shifting transformer, phase shifter (West coast American usage), or quadrature booster (quad booster, British usage), is a specialised form of transformer used to control the flow of real power on three-phase electric transmission networks.

  8. Dynamic braking - Wikipedia

    en.wikipedia.org/wiki/Dynamic_braking

    Norfolk Southern 5348 diesel-electric locomotive employs dynamic braking. The cooling grill for the brake grid resistors is at the top center of the locomotive. Dynamic braking is the use of an electric traction motor as a generator when slowing a vehicle such as an electric or diesel-electric locomotive.

  9. Comparison of hub gears - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_hub_gears

    Nexus 4 Speed 4 184% 1st gear City Shimano Nexus Inter-3: 3 187% 2nd gear 1220 g City SRAM Spectro E12 (Elan) 1995 1999 12 339% 3500-4000 g City SRAM i-Motion 9: 2005 2012 9 340% 2000g (w/o brake)-2400g (with coaster brake) City SRAM G8: 2012 2015 8 260% 2088-2180 g [16] [17] City SRAM G9 2014 2015 9 292% 2088 g [17] City, Sport SRAM (Sachs)

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