Alex roshansky
BELARUS • + Follow
Description
PWM with common minus.
PWM with common minus.
The easiest PWM speed controller can be made on the NE555 chip.
But in most cases it is a scheme with a common plus. (Mosfets with N-channel are used).
Motor connects between + supply voltages and PWM output.
But in some cases it is necessary to connect the engine between the minus of the supply voltage and the PWM output. In this case, we need another mirror-symmetric scheme with a with a P-channel MOSFET, that I suggest.
Schematic and Layout
PWM with common minus
pwm_1N.spl7
PWM_izm
pwm_izm.spl7
pwm_connect
pwm_connect.spl7
List_of_components
List_comp.docx
Mar 14,2021
2,361 views
PWM with common minus.
2 Layers PCB 43.3 x 67.9 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen
I offer a PWM regulator scheme with a total minus using Mosfet P-Channel and Ne555 chip.
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Published: Mar 14,2021
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