1. K

    DC Snubber Protection On a ON-OFF-ON Cam Switch

    We have a DPDT ON-OFF-ON (1-0-2) Cam switch that manually transfers power from a solar/battery system or from a AC power supply. The switching is DC, set at 14.4V, around 35A max. Typical current loads are around 15A, but the system idle current seldom exceeds 5A. This is tested daily and I have...
  2. R

    How do I design a Snubber for a DC motor with rotation reversal?

    I'm working on a project that needs to have a motor's rotation reversal so that it can run clockwise or counterclockwise depending on an independent control from a microcontroller. I'm achieving the reversal by inverting the Vcc and Ground wires. The microcontroller part of the circuit is...
  3. Equinox_76

    Dampen Inductive Kickback using Flyback Diode or RC Snubber?

    I am pulsing a 38mH coil (16 AWG wire wrapped around a small tube) with a IRFB4115pbf MOSFET at 66.6v (3 lipo 5200mAH "50C" battery's in series). It's a lot of juice! Using Lt spice I simulated this and found that the voltage spikes can reach up to 20kv. I am trying to figure out if I should use...
  4. alobaolalekann

    Question about Current Draw and Spikes in Half-Bridge Switching Circuit with RC-Snubber

    Is it okay if the half-bridge switching circuit draws up to 100mA from the power supply at 20kHz because of the RC-snubber between the MOSFETs' drain and source? Without the snubber parts, there's no noticeable current draw, but there are many spikes in the output.
  5. ashokraj

    how can I determine the Resistanc and capacitance value in a snubber circuit

    Hi, In the below circuit I would like to know how to determine the the resistance(R9) and capacitance(C6) value ? This circuit is a IOT based fan controller. Here we are using 240VAC, Even though they have shown the values I am interested in knowing how to design a RC snubber circuit for a fan...
  6. IvarsOzolsDB

    300W AC light dimmer mod to 500W

    Bought Stairville PAR56 Active 300W and got a bit dissapointed in light output. So I got wondering maybe there is some mod I could do to put 500W 230V PAR56 bulb in it (originally 300W 230V PAR56) and not fry dimmer circuits. I traced schematic (look in attachments) in high voltage part, as it...
  7. S

    RC snubber circuit for 220V AC solenoid valve

    Hello fine people! I've got a 220v AC solenoid valve which I want to control through a 5v relay module with rasp pi. As I've understood, I have to add an RC snubber circuit in series in order to protect the relay. And this is where I need help. I need to figure out what resistor and what...
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