you mention an led can continue to pull more and more current and that a constant current driver is useful. You then mention that when there are an unknown number of leds, a constant voltage is preferred, but when using a constant voltage driver, whats preventing the leds in that case from continuing to pull more and more current?
exactly, this was a good visual introduction, but it would be nice to include more details or examples on how the current is limited to the e.g. 20mA per diode as in this example. I assume at the simplest design a resistance is added to each diode to make sure the 2V supply does not push the max ampere - as in for example (2-0.7)/20mA = 65 ohm resistance ..?
Hi Jordan, in simple terms, a constant current board is just a PCB with Diodes on it, whereas a constant voltage board uses additional components to manage the current to each LED. LEDs are inherently constant current so this is what matters,
Hello, nice video ! how to do to have a constant 1amp 14V power supply to charge a battery. WIth classical PSUs, when the battery reaches 13.5v, it takes ages to go to 14v because it draws very few current. Pushing 1Amp all the way will make it charge better and faster. Thanks.
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you mention an led can continue to pull more and more current and that a constant current driver is useful. You then mention that when there are an unknown number of leds, a constant voltage is preferred, but when using a constant voltage driver, whats preventing the leds in that case from continuing to pull more and more current?
exactly, this was a good visual introduction, but it would be nice to include more details or examples on how the current is limited to the e.g. 20mA per diode as in this example. I assume at the simplest design a resistance is added to each diode to make sure the 2V supply does not push the max ampere - as in for example (2-0.7)/20mA = 65 ohm resistance ..?
Hi Jordan, in simple terms, a constant current board is just a PCB with Diodes on it, whereas a constant voltage board uses additional components to manage the current to each LED. LEDs are inherently constant current so this is what matters,
Yeah, links to part dont work and are no where to be found. Just when one gets exited, this happens. Well..
🙏👌👍 thanks a million!
Hello, nice video ! how to do to have a constant 1amp 14V power supply to charge a battery. WIth classical PSUs, when the battery reaches 13.5v, it takes ages to go to 14v because it draws very few current. Pushing 1Amp all the way will make it charge better and faster. Thanks.