The simple addition of a transistor and resistor to the open-circuit drive overcomes this dilemma by limiting current through the drive transistor. Transistor Q2 provides the open-collector drive ...

A Simple Over-Voltage Protection Circuit for LED Drivers This boost circuit implements current mode control and senses the LED current via resistor R14. The output voltage is boosted to just over 30V ...

So simple, and yet almost poetic in their beauty, this was the spread of the early access copy of the book the publisher sent me that made me decide to share its weird wonderment with you.

In a series circuit, the current is the same at all points. So if the current in the LED is \ (10 mA\), the current in resistor \ (R\) is also \ (10 mA\). Using Ohm ...

GCSE WJEC Electric circuits – WJEC Current-voltage graphs Engineers connect components in electrical circuits in series or parallel to make a range of useful circuits. We can calculate the ...