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Conduct Research Top

  • Zener Diode Tutorial
    The basic parameters of a zener diode are:
  • Zener Barriers
    Zener barriers are passive devices that contain Zener diodes, resistors, and fuses to limit excess voltage and current. These are the basic building blocks which are contained in all other intrinsically safe barriers There is always a voltage drop across Zener barriers because of resistance. Proper
  • Subsurface Zener References
    Subsurface or "buried" Zener references are more stable and accurate than the simple Zener-reference. They consist of diodes with the correct value of reverse-breakdown voltage, formed below the surface level of the integrated-circuit chip; then covered by a protective diffusion to keep
  • 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.
  • | 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
  • 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
  • Trimming The Output Voltage Of DC/DC Converters
    /A) or OPAM, must be used for adjustment, the circuit in Figure 2 can be used. The circuit in Figure 1 is a variable current source that can be used to perform a ±10% adjustment of the converter's output voltage. The auxiliary output is preloaded by RLF and an overvoltage zener diode to prevent any
  • DC/DC Converters In Power Sequencing Systems
    and the optocoupler. When Vin is applied while the on/off pin is open, the zener diode Z1, which is biased through R9, holds the base of Q1 at VZ.