LM358D Laser Power supply
The described circuit functions as a power supply specifically designed for laser diodes, incorporating a current source mechanism through the use of an n-channel power device. The LM358D operational amplifier serves as the primary control element, providing feedback and stability for the current output.
In this configuration, the LM358D is typically set up in a non-inverting configuration to regulate the voltage and maintain a constant current through the laser diode. The n-channel power device, such as a MOSFET, is used to handle the load current, ensuring efficient power delivery to the diode while minimizing thermal losses.
Resistors are strategically placed within the circuit to set the desired current level and provide feedback to the LM358D. The values of these resistors can be adjusted to fine-tune the output current according to the specifications of the laser diode being used. Additional components, such as capacitors, may be included for filtering and stability, ensuring that the power supply operates smoothly without oscillations or noise.
Overall, this design is suitable for applications requiring precise control of laser diode operation, making it ideal for various optical and photonic applications. Proper thermal management and component ratings should be considered to ensure reliable operation under varying load conditions.This is first version of laser diode power supply, and current source using n-channel power device. Component: LM358D IC, Transistor, Resistor, .. 🔗 External reference
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