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Description
LED resistance calculator use to determine the series resistor needed to connect various series combinations of light emitting diodes or "LEDs". LED resistance calculator will assist you pick the resistors make the connections for any number of LEDs.
Every (LED) light emitting diode has a current that they can handle safely. Going beyond it maximum current will damage the LED. So limiting the current through the LED with the use of a series resistor is a common practice.
LED resistance calculator will help you determine the value of the resistor so you can add in series with the LED to limit the current. Just input the indicated values and the result will be calculate automatically. The result include Resistor Value, Resistor Power Dissipation and Recommended Resistor Wattage.
Formula: R = (Vs - Vf * Nled) / If
Where:
Vs - Supply Voltage
Vf - LED voltage drop. The voltage drop on a LED depends on the color it emits.
If- LED current. The usual operating range of common 3 mm and 5 mm LEDs is 10-30 milliamps.
Nled - Number of LEDs in series
A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode that emits light when activated. When a suitable current is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence, and the color of the light (corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor. LEDs are typically small (less than 1 mm2) and integrated optical components may be used to shape the radiation pattern.
Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light. Infrared LEDs are still frequently used as transmitting elements in remote-control circuits, such as those in remote controls for a wide variety of consumer electronics. The first visible-light LEDs were of low intensity and limited to red. Modern LEDs are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness.
* This method is not recommended for high current LEDs, which need a more reliable switching current regulator.
Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
Nouveautés de la version 1.1
- Update for Newest Devices
- Bug Fixed
Vendeur
Nom
Tan Chia Ling
Informations
Éditeur
Catégories
Version
1.1
Taille
8,9 MB
Game Center
Non
VPP Device Licensing
Oui
Classement
Classification : 4+
Compatibilité
iOS 12.0 ou plus récent
Appareils
iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2e génération), iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone SE (3e génération), iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16Plus, iPhone 16Pro, iPhone 16ProMax, iPad (5e génération) Wi-Fi, iPad (5e génération) Wi-Fi + Cellular, iPad (6e génération) Wi-Fi, iPad (6e génération) Wi-Fi + Cellular, iPad Pro, iPad mini 4 (Cellular), iPad Pro (9,7 pouces), iPad Pro (9,7 pouces) (Cellular), iPad Pro 12,9 pouces (2e génération), iPad Pro 12,9 pouces (2e génération) Wi-Fi + Cellular, iPad Pro (10,5 pouces), iPad Pro (10,5 pouces) Wi-Fi + Cellular, iPad Pro (11 pouces), iPad Pro (11 pouces) Wi-Fi + Cellular, iPad Pro 12,9 pouces (3e génération), iPad Pro 12,9 pouces (3e génération) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (3e génération), iPad Air (3e génération) Wi-Fi + Cellular, iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5e génération), iPad mini (5e génération) Wi-Fi + Cellular, iPad (7e génération) Wi-Fi + Cellular, iPad Pro 11 pouces (2e génération), iPad Pro 11 pouces (2e génération) Wi-Fi + Cellular, iPad Pro 12,9 pouces (4e génération), iPad Pro 12,9 pouces (4e génération) Wi-Fi + Cellular, iPad Air (4e génération) (Wi-Fi), iPad Air (4e génération) (Wi-Fi + Cellular), iPad (8e génération) Wi-Fi, iPad (8e génération) Wi-Fi + Cellular, iPad Pro 11 pouces (3e génération), iPad Pro 11 pouces (3e génération) Wi-Fi + Cellular, iPad Pro 12,9 pouces (5e génération), iPad Pro 12,9 pouces (5e génération) Wi-Fi + Cellular, iPad (9e génération), iPad (9e génération) Wi-Fi + Cellular, iPad mini (6e génération), iPad mini (6e génération) Wi-Fi + Cellular, iPad Air (5e génération), iPad Air (5e génération) Wi-Fi + Cellular, iPad Pro 11 pouces (4e génération), iPad Pro 11 pouces (4e génération) Wi-Fi + Cellular, iPad Pro 12,9 pouces (6e génération), iPad Pro 12,9 pouces (6e génération) Wi-Fi + Cellular, iPad (10e génération), iPad (10e génération) Wi-Fi + Cellular, iPad Air 11 pouces (M2) Wi-Fi, iPad Air 13 pouces (M2) Wi-Fi, iPad Air 13 pouces (M2) Wi-Fi + Cellular, iPad Pro 11 pouces (M4) Wi-Fi, iPad Pro 11 pouces (M4) Wi-Fi + Cellular, iPad Pro 13 pouces (M4) Wi-Fi, iPad Pro 13 pouces (M4) Wi-Fi + Cellular, iPad MiniA17Pro, iPad MiniA17ProCellular, iPod touch (6e génération), iPod touch (7e génération)
Langues
anglais
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