Hi everyone
Please refer to the attached circuit, comment whether both circuits produce the same brightness of light, when:
Circuit A: controlled by microcontroller, port RA1 & port RA2 alternatively on/off at 5ms, that is when RA1 High for 5ms , RA2 low for the same period and vice versa. For frequency period at 5ms, human eye will unable to experience the blinking light.
Circuit B: constant current control through out.
I presume for circuit (A), I only needs a power supply that produces 800mA, and circuit (B) a power supply to produce 1.8A to similar the brightness?
Thanks and have a great weekend.
Please refer to the attached circuit, comment whether both circuits produce the same brightness of light, when:
Circuit A: controlled by microcontroller, port RA1 & port RA2 alternatively on/off at 5ms, that is when RA1 High for 5ms , RA2 low for the same period and vice versa. For frequency period at 5ms, human eye will unable to experience the blinking light.
Circuit B: constant current control through out.
I presume for circuit (A), I only needs a power supply that produces 800mA, and circuit (B) a power supply to produce 1.8A to similar the brightness?
Thanks and have a great weekend.
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