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Results tagged with pwm
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user 222590
Pulse-width modulation, is varying the duty cycle of a rectangle wave, usually with a constant frequency.
2
votes
What does this mean in the datasheet for PWM motor control?
From the data sheet, I presume you are using it in Mode 1
It says" the PWM output of a microcontroller (with an RC filter)" [my emphasis]. … This may be of use to you, as your 3.3V PWM signal will be just enough to get to full forward rotation with 0.175 V to spare. …
- 2,512
3
votes
How do I supply 200-ish mA to servo connected with Adafruit's PCA9685?
Looking at the application notes The logic on the PCA9685 should be powered from the same supply as the Raspberry Pi (3 - 5V) Vcc and this is low power. The servos can have their own separate supply V …
- 2,512
1
vote
Noisy MOSFET RGB LED driver problem
I've two suggestions for you.
1) Run separate power and earth wires (as thick as possible) between the power supply and each of the LED and servo driver boards so that they don't share any power wiri …
- 2,512
1
vote
How to make an LED current regulator that can be controlled by a Teensy (or an Arduino)?
Ignoring for the moment that CTRL2 can vary, the circuit is a constant current driver. Feedback from the sensing resistor, R6, is inverted by the opamp and this in turn drives Q2 in such a way as to k …
- 2,512