enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. LED circuit - Wikipedia

   en.wikipedia.org/wiki/LED_circuit

   Simple LED (Light Emitting Diode) circuit diagram. In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED.

3. Voltage regulator - Wikipedia

   en.wikipedia.org/wiki/Voltage_regulator

   The ferroresonant transformer, ferroresonant regulator or constant-voltage transformer is a type of saturating transformer used as a voltage regulator. These transformers use a tank circuit composed of a high-voltage resonant winding and a capacitor to produce a nearly constant average output voltage with a varying input current or varying load.

4. Buck–boost transformer - Wikipedia

   en.wikipedia.org/wiki/Buck–boost_transformer

   Buck–boost transformers can be used to power low voltage circuits including control, lighting circuits, or applications that require 12, 16, 24, 32 or 48 volts, consistent with the design's secondaries. The transformer is connected as an isolating transformer and the nameplate kVA rating is the transformer’s capacity. [2]

5. Switched-mode power supply - Wikipedia

   en.wikipedia.org/wiki/Switched-mode_power_supply

   Most of the cost savings (and space savings) in off-line power supplies result from the smaller size of the high-frequency transformer compared to the 50/60 Hz transformers formerly used. There are additional design tradeoffs. [38] The terminal voltage of a transformer is proportional to the product of the core area, magnetic flux, and frequency.

6. Boost converter - Wikipedia

   en.wikipedia.org/wiki/Boost_converter

   However, a Prius actually uses only 168 cells [1] [failed verification] and boosts the battery voltage from 202 V to 500 V. Boost converters also power devices at smaller scale applications, such as portable lighting systems. A white LED typically requires 3.3 V to emit light, and a boost converter can step up the voltage from a single 1.5 V ...

7. Standby power - Wikipedia

   en.wikipedia.org/wiki/Standby_power

   Transformers for voltage conversion. Wall wart power supplies powering devices that are switched off. Many devices with "instant-on" functions that respond immediately to user action without warm-up delay. Commonly used LED strips and such low power household lights.