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  • Can a TVS be Used as a Regulator Instead of a Zener Diode?
    But the voltage control is not that precise and the TVS devices are not continuous operating components, their V-I characteristics are usually specified, and their duty cycle must be controlled. The V-I pulse characteristic is shown in Fig 1, for two typical TVS devices. These pulse widths can be
  • Select the Right Varistors for Overvoltage Circuit Protection
    Varistors, also called metal-oxide varistors (MOVs), are used to protect sensitive circuits from a variety of overvoltage conditions. Essentially, these voltage-dependent, nonlinear devices have electrical characteristics similar to back-to- back Zener diodes.
  • Littelfuse Varistors - Basic Properties, Terminology and Theory (.pdf)
    Varistors are voltage dependent, nonlinear devices which have an electrical behavior similar to back-to-back zener diodes. The symmetrical, sharp breakdown characteristics shown in Figure 1 enable the varistor to provide excellent transient suppression performance. When exposed to high voltage
  • EETimes.com | Electronics Industry News for EEs & Engineering Managers
    Heard on the Beat (Nov. 2) Heard on the Beat (Nov. 2) Semiconductor Alert! (Oct. 29-Nov. 2) Commentary & analysis of week's chip news, Oct. 29-Nov. 2 Diodes develops high-precision zener diode process technology WESTLAKE VILLAGE, Calif. -- Diodes Inc. here announced the development
  • DC Motors: Principle of Operation
    polarity. A recommended Zener diode is used to ensure a fast current decay in the switched-off coil. This will give an increased motor torque especially at higher frequencies. Bipolar indicates that every coil end has both polarities. The coil will be positive and negative during each drive cycle. Since

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