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2. LED circuit - Wikipedia

   en.wikipedia.org/wiki/LED_circuit

   LED drivers are designed to handle fluctuation load, providing enough current to achieve the required brightness while not allowing damaging levels of current to flow. Drivers may be constant current (CC) or constant voltage (CV). In CC drivers, the voltage changes while the current stays the same. CC drivers are used when the electrical load ...

3. LED strip light - Wikipedia

   en.wikipedia.org/wiki/LED_strip_light

   Less common designs may have 3014, 4014, 7020, 8020, or other SMDs. In addition to the LED SMD type, the quantity of LEDs per meter is also an important factor in determining the overall power and brightness. [5] LED strip lights most commonly operate on 12 or 24 volts of direct current from a power supply, sometimes referred to as a driver ...

4. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   The current in an LED or other diodes rises exponentially with the applied voltage (see Shockley diode equation), so a small change in voltage can cause a large change in current. Current through the LED must be regulated by an external circuit such as a constant current source to prevent damage. Since most common power supplies are (nearly ...

5. Constant current - Wikipedia

   en.wikipedia.org/wiki/Constant_current

   In electronics, a constant current system is one that varies the voltage across a load to maintain a constant electric current.When a component is indicated to be driven by a constant current, the driver circuit is, in essence, a current regulator and must appear to the component as a current source of suitable reliability.

6. Light-emitting diode physics - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode_physics

   An LED begins to emit light when more than 2 or 3 volts is applied in the forward direction. The reverse bias region uses a different vertical scale from the forward bias region to show that the leakage current is nearly constant with voltage until breakdown occurs. In forward bias, the current starts small but increases exponentially with voltage.

7. Constant-current diode - Wikipedia

   en.wikipedia.org/wiki/Constant-current_diode

   It is known as a current-limiting diode (CLD) or current-regulating diode (CRD). Internal structure. It consists of an n-channel JFET with the gate shorted to the source, which functions like a two-terminal current limiter (analogous to a voltage-limiting Zener diode). It allows a current through it to rise to a certain value, but not higher.