Current Limiting Resistor Calculator for Leds
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If you want to calculate Resistor, please visit Here!
Some good values to try:
As supply voltage:
For molex: 5, 7 and 12 volts
Batteries: 1.5 and 9 volts
...
Showing posts with label Resistor. Show all posts
Showing posts with label Resistor. Show all posts
5:30 PM
If you want to calculate Resistor, please visit Here!
Some good values to try:
As supply voltage:
For molex: 5, 7 and 12 volts
Batteries: 1.5 and 9 volts
As led forward voltages:
Red and green: 2 volts
Blue and white: 3.5 - 4 volts
Led current:
20mA will work for most regular leds.
Superbright leds can go from 30mA up to several amps.
Other CURRENT LIMITING RESISTOR CALCULATOR: FOR LIGHT EMITTING DIODES
The calculators on this page can be used to find current limiting resistors and currents for Light Emitting Diodes.
The first calculator determines the resistance for a desired LED current while the second calculates the current for a given resistance.
Voltages in Volts - Current in Milliamps - Resistance in Ohms
When selecting resistors - It is advisable to choose the next higher standard value.
A browser capable of running Javascript is required for this calculator.
If LED's are connected in series - ADD their voltage drops together to get the total voltage drop.
Entering a zero for the LED voltage drop will yield the resistance and wattage for a resistance only circuit.
Please Go here : Other CURRENT LIMITING RESISTOR CALCULATOR: FOR LIGHT EMITTING DIODES
Some good values to try:As supply voltage:
For molex: 5, 7 and 12 volts
Batteries: 1.5 and 9 volts
As led forward voltages:
Red and green: 2 volts
Blue and white: 3.5 - 4 volts
Led current:
20mA will work for most regular leds.
Superbright leds can go from 30mA up to several amps.
Other CURRENT LIMITING RESISTOR CALCULATOR: FOR LIGHT EMITTING DIODES
The calculators on this page can be used to find current limiting resistors and currents for Light Emitting Diodes.
The first calculator determines the resistance for a desired LED current while the second calculates the current for a given resistance.
Voltages in Volts - Current in Milliamps - Resistance in OhmsWhen selecting resistors - It is advisable to choose the next higher standard value.
A browser capable of running Javascript is required for this calculator.
If LED's are connected in series - ADD their voltage drops together to get the total voltage drop.
Entering a zero for the LED voltage drop will yield the resistance and wattage for a resistance only circuit.
Please Go here : Other CURRENT LIMITING RESISTOR CALCULATOR: FOR LIGHT EMITTING DIODES
2:49 PM
Learn how to identify different resistors with their colour code
The humble resistor is a key component of many renewable energy systems. They are designed to resist electricity and can therefore be used to supply the correct voltage to the various components in an electric circuit.
Because resistors are so small - too small to print numerical resistance values on - they are instead marked with four, five, or (less commonly) six coloured bands. Each colour represents a different number and so the value (in Ohms) of the resistor can easily be calculated.
The last coloured band is usually used to indicate the tolerance - a measure of how accurate the stated resistance is, i.e. 1%, 2%, 5%, or 10%. In the case of six band resistors, is used to show the temperature coefficient - a measure of how much the resistance of a resistor is changed by changes in temperature.
Remembering the Resistor Colour Code Values
There are many mnemonic phrases to help you to remember the order of the colours:
Black Brown Red Orange Yellow Green Blue Violet Gray White
...which correspond to the values 0-9. For example:
Bad Beer Rots Our Young Guts But Vodka Goes Well.
The humble resistor is a key component of many renewable energy systems. They are designed to resist electricity and can therefore be used to supply the correct voltage to the various components in an electric circuit.Because resistors are so small - too small to print numerical resistance values on - they are instead marked with four, five, or (less commonly) six coloured bands. Each colour represents a different number and so the value (in Ohms) of the resistor can easily be calculated.
The last coloured band is usually used to indicate the tolerance - a measure of how accurate the stated resistance is, i.e. 1%, 2%, 5%, or 10%. In the case of six band resistors, is used to show the temperature coefficient - a measure of how much the resistance of a resistor is changed by changes in temperature.
Remembering the Resistor Colour Code Values
There are many mnemonic phrases to help you to remember the order of the colours:
Black Brown Red Orange Yellow Green Blue Violet Gray White
...which correspond to the values 0-9. For example:
Bad Beer Rots Our Young Guts But Vodka Goes Well.
