When.com Web Search

  1. Ads

    related to: blocking diode vs bypass sensor relay switch for christmas lights walmart

Search results

  1. Results From The WOW.Com Content Network
  2. Blocking oscillator - Wikipedia

    en.wikipedia.org/wiki/Blocking_oscillator

    An ideal switch will present supply voltage V b across the primary, so in the ideal case V p = V b. V s, voltage across the secondary winding; V z, fixed load voltage caused by e.g. by the reverse voltage of a Zener diode or the forward voltage of a light-emitting diode (LED). I m, magnetizing current in the primary

  3. Holiday lighting technology - Wikipedia

    en.wikipedia.org/wiki/Holiday_lighting_technology

    An LED holiday light. Light-emitting diode (LED) holiday lights are quickly gaining popularity in many places due to their low energy usage, long lifetime, and associated low maintenance. Colored LEDs are far more efficient at producing light than their colored incandescent counterparts.

  4. Shunt (electrical) - Wikipedia

    en.wikipedia.org/wiki/Shunt_(electrical)

    A shunt resistor, which has been connected in parallel across the filament before it burnt out, will then short out to bypass the burnt filament and allow the rest of the string to light. If too many lights burn out however, a shunt will also burn out, requiring the use of a multimeter to find the point of failure.

  5. Twilight switch - Wikipedia

    en.wikipedia.org/wiki/Twilight_switch

    A twilight switch is an electronic component that allows the automatic activation of a lighting circuit when natural light drops in a given environment. Among a large number of uses, the most common is to enable automatic lighting of streets, roads, highways, roads, gardens, courtyards, etc., when sunlight drops below a certain level (e.g.: a ...

  6. Static relay - Wikipedia

    en.wikipedia.org/wiki/Static_relay

    In electrical systems, a static relay is a type of relay, an electrically operated switch, that has no moving parts. [1] Static relays are contrasted with electromechanical relays, which use moving parts to create a switching action. Both types of relay control electrical circuits through a switch that is open or closed depending upon an ...

  7. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    Diode (all types, including LED), thyristor "D" is preferred for various types of diodes DL: Delay line: DN: Diode network: may be simplified to "D" for diode DS: Display, general light source, lamp, signal light: F: Fuse: FB: Ferrite bead: sometimes changed to "L" for inductor, though "E" was used in the currently inactive standard IEEE 315 ...

  8. Buck–boost converter - Wikipedia

    en.wikipedia.org/wiki/Buck–boost_converter

    The basics of the 4-switch topology. The four-switch converter combines the buck and boost converters. It can operate in either the buck or the boost mode. In either mode, only one switch controls the duty cycle, another is for commutation and must be operated inversely to the former one, and the remaining two switches are in a fixed position.

  9. Power semiconductor device - Wikipedia

    en.wikipedia.org/wiki/Power_semiconductor_device

    Reverse voltage blocking device, commonly modeled as a switch in series with a voltage source, usually 0.7 VDC. The model can be enhanced to include a junction resistance, in order to accurately predict the diode voltage drop across the diode with respect to current flow. Up to 3000 amperes and 5000 volts in a single silicon device.