yes, i am new to working with electronics at the circuit board level & to me, until recently, just about every electrical solution for wiring was solved by a simple logic of connecting positive to negative leads, things working, & me moving on to something else.
now, i'm working on a project where i need to learn more besides just watts & volts. i'm upgrading a single IR LED on a, for lack of a better comparison, single-button remote that only sends 1 signal every time the circuit is closed to three 5mm high output IR LEDs i picked up from Radio Shack after reading several good reviews on them.
the given info for the LEDs are as follows:
Forward Voltage: 1.2V
Forward current: 100mA
Radiant power output (100ma): 16mW min.
Viewing angle to 1/2 intensity: 45degrees
Wavelength: 940nm
my questions are:
1) i know i need a resistor to regulate the voltage & current for the LEDs but when i use any online LED calculator, i don't know if i need to multiply the Voltage & Current fields by 3 (how many LEDs i'm using) or just input what a single LED lists.
2) how do i, or rather what do i change in the LED calculators if i want to double or even triple the brightness & range of the IR LEDs?... do i increase the Voltage or Current values in the calculator?
Side Note: the IR LEDS won't be staying on constantly; they will blink for a short double burst each time a push button is pressed.
3) the circuit board with the original IR LED has a resistor i haven't been able to find what it's specs are for it to know if it needs to be upgraded as well. it looks to have the bars Green, Black, Gold, Gold on it. any one know of a way? i've already tried using Google.
finally, the power source will be four 4AA battery holders (24V total) in a series with an inline fuse before connecting to the circuit board with the IR LEDs connected to it. the reason for so many batteries is that there is a second device that will be drawing power from the same source & don't want to have to replace batteries constantly.
any questions are welcome & i'll answer as best i can.
thank you all in advance for any progress that is made from helpful answers!
now, i'm working on a project where i need to learn more besides just watts & volts. i'm upgrading a single IR LED on a, for lack of a better comparison, single-button remote that only sends 1 signal every time the circuit is closed to three 5mm high output IR LEDs i picked up from Radio Shack after reading several good reviews on them.
the given info for the LEDs are as follows:
Forward Voltage: 1.2V
Forward current: 100mA
Radiant power output (100ma): 16mW min.
Viewing angle to 1/2 intensity: 45degrees
Wavelength: 940nm
my questions are:
1) i know i need a resistor to regulate the voltage & current for the LEDs but when i use any online LED calculator, i don't know if i need to multiply the Voltage & Current fields by 3 (how many LEDs i'm using) or just input what a single LED lists.
2) how do i, or rather what do i change in the LED calculators if i want to double or even triple the brightness & range of the IR LEDs?... do i increase the Voltage or Current values in the calculator?
Side Note: the IR LEDS won't be staying on constantly; they will blink for a short double burst each time a push button is pressed.
3) the circuit board with the original IR LED has a resistor i haven't been able to find what it's specs are for it to know if it needs to be upgraded as well. it looks to have the bars Green, Black, Gold, Gold on it. any one know of a way? i've already tried using Google.
finally, the power source will be four 4AA battery holders (24V total) in a series with an inline fuse before connecting to the circuit board with the IR LEDs connected to it. the reason for so many batteries is that there is a second device that will be drawing power from the same source & don't want to have to replace batteries constantly.
any questions are welcome & i'll answer as best i can.
thank you all in advance for any progress that is made from helpful answers!