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2. Inrush current - Wikipedia

   en.wikipedia.org/wiki/Inrush_current

   Inrush current. Inrush current, input surge current, or switch-on surge is the maximal instantaneous input current drawn by an electrical device when first turned on. Alternating-current electric motors and transformers may draw several times their normal full-load current when first energized, for a few cycles of the input waveform.

3. Stepper motor - Wikipedia

   en.wikipedia.org/wiki/Stepper_motor

   Chopper drive circuits are most often used with two-winding bipolar motors, the two windings being driven independently to provide a specific motor torque CW or CCW. On each winding, a "supply" voltage is applied to the winding as a square wave voltage; example 8 kHz. The winding inductance smooths the current which reaches a level according to ...

4. Thermistor - Wikipedia

   en.wikipedia.org/wiki/Thermistor

   Thermistor. A thermistor is a semiconductor type of resistor whose resistance is strongly dependent on temperature, more so than in standard resistors. The word thermistor is a portmanteau of thermal and resistor . Thermistors are categorized based on their conduction models. Negative-temperature-coefficient (NTC) thermistors have less ...

5. Rotary variable differential transformer - Wikipedia

   en.wikipedia.org/wiki/Rotary_variable...

   Rotary variable differential transformer. A rotary variable differential transformer ( RVDT) is a type of electrical transformer used for measuring angular displacement. The transformer has a rotor which can be turned by an external force. The transformer acts as an electromechanical transducer that outputs an alternating current (AC) voltage ...

6. Induction motor - Wikipedia

   en.wikipedia.org/wiki/Induction_motor

   Many single-phase motors having two windings can be viewed as two-phase motors, since a capacitor is used to generate a second power phase 90° from the single-phase supply and feeds it to the second motor winding. Single-phase motors require some mechanism to produce a rotating field on startup. Induction motors using a squirrel-cage rotor ...

7. Switched reluctance motor - Wikipedia

   en.wikipedia.org/wiki/Switched_reluctance_motor

   Switched Reluctance Motor with magnetic flux lines. The switched reluctance motor ( SRM) is a type of reluctance motor. Unlike brushed DC motors, power is delivered to windings in the stator (case) rather than the rotor. This simplifies mechanical design because power does not have to be delivered to the moving rotor, which eliminates the need ...