120 Volt 4 LED Light Circuit Schematic Diagram
The circuit in question operates under an AC supply of 220 volts, necessitating careful consideration of component ratings to ensure proper functionality and safety. The original design, intended for a 120-volt application, requires modifications to accommodate the increased voltage. The recommendation to replace the 9.1kΩ resistor with a resistor between 22kΩ and 100kΩ is based on the principle that resistance values should be adjusted in proportion to the voltage increase. This is critical to maintain the correct current flow through the circuit and prevent component failure.
Furthermore, the capacitor voltage rating must be at least 160 volts to withstand the peak voltage of the AC supply without risk of breakdown. It is advisable to select capacitors with a higher voltage rating for added reliability, especially in applications where voltage spikes may occur.
In the context of a 120V, 4 LED light circuit, each LED typically requires a forward voltage drop of around 2 to 3 volts, depending on the type of LED used. The series configuration of LEDs will dictate the total forward voltage drop, which must be accounted for when selecting resistors and capacitors. The total forward voltage drop of the LEDs must be subtracted from the supply voltage to determine the necessary resistor value to limit the current through the LEDs to a safe operating level.
In summary, when modifying a circuit designed for 120 volts to operate at 220 volts, it is essential to adjust the resistor values appropriately and ensure that all components are rated for the higher voltage to maintain circuit integrity and performance.If the ac supply is 220 volts, then which resistir should replace and by which one, 220v is twice of 110v so doubles the value due to the voltage work, try to replace 9k1 with 22k-100k and capasitor voltage 160v. You are reading the Circuits of 120 Volt 4 LED Light Circuit And this circuit permalink url it is 🔗 External reference
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