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The measurement of a voltage requires two contacts and so, electrically, the unipolar leads are measured from the common lead (negative) and the unipolar lead (positive). This averaging for the common lead and the abstract unipolar lead concept makes for a more challenging understanding and is complicated by sloppy usage of "lead" and "electrode".
FETs are also known as unipolar transistors since they involve single-carrier-type operation. That is, FETs use either electrons (n-channel) or holes (p-channel) as charge carriers in their operation, but not both.
An 8-lead stepper is like a unipolar stepper, but the leads are not joined to common internally to the motor. This kind of motor can be wired in several configurations: Unipolar. Bipolar with series windings. This gives higher inductance but lower current per winding. Bipolar with parallel windings.
For some pacing leads, both connections to the heart are provided in a single lead ("bipolar") and some only provide a single connection ("unipolar"). In unipolar, the second connection is internally from the heart to the generator through the body (blood, tissue, etc). Also important is the impedance. The lower the impedance, the more current ...
A unipolar motor (also called homopolar motor) is a direct current (DC) motor typically with slip-rings on each end of a cylindrical rotor and field magnets or a DC field winding generating a magnetic field on the stator. The rotor has typically not a winding but just straight connections in axial direction between the slip-rings (e.g. a copper ...
The field-effect transistor, sometimes called a unipolar transistor, uses either electrons (in n-channel FET) or holes (in p-channel FET) for conduction. The four terminals of the FET are named source, gate, drain, and body (substrate). On most FETs, the body is connected to the source inside the package, and this will be assumed for the ...
Russia was not challenging us yet—though in 2007 at the Munich Security Forum, Vladimir Putin signaled what would be coming when he decried the idea of a unipolar world and said the Russians and ...
The primary coil is connected to the 2 axial leads out either side, and the high voltage is delivered through the smaller lead, and one of the primary leads. Trigger transformer cores may be utilized in a unipolar (electromagnetic flux strictly positive or negative) or bipolar (swinging between positive and negative) manner. Applications also ...