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| lab_electrical_engineering:led_brightness_control_using_pwm [2026/06/17 12:57] – mexleadmin | lab_electrical_engineering:led_brightness_control_using_pwm [2026/06/17 12:58] (current) – mexleadmin | ||
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| ~~CLEARFIX~~ | ~~CLEARFIX~~ | ||
| - | - Build the circuit on the MEXLE-board. To do this, connect two LEDs in anti-parallel. What value must the series resistor for the LEDs have? **An LED requires approx. 20 mA to operate.** \\ \\ \\ \\ \\ \\ \\ \\ \\ | + | - Build the circuit on the MEXLE-board. To do this, connect two LEDs in anti-parallel. What value must the series resistor for the LEDs have? **An LED requires approx. 20 mA to operate.** |
| - Use the circuit variant with **C1 = 10 nF**. Vary the duty cycle and document the result. \\ \\ \\ \\ \\ \\ \\ \\ | - Use the circuit variant with **C1 = 10 nF**. Vary the duty cycle and document the result. \\ \\ \\ \\ \\ \\ \\ \\ | ||
| - What are the advantages of this type of brightness control? Name some applications. \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ | - What are the advantages of this type of brightness control? Name some applications. \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ | ||