Stanley A Meyer Switch Arduino PWM Esp32
Other Boards & Parts · 969 views on PCBWay · published 2024-11-02
Much like the 2N3904 Simplified approach, we can do the exact same with a small N-fet.
This circuit expects 4 input signals, 2 from the ESP32, or from any other signal generator you have that can be constrained to 0-5V.
Since the FET needs a B+ and load at its Drain, the TIP42C Darlington is chosen for its 100V rating and hfe=1000, similar to the TIP120 (60V rated).
The Darlington transistor allows a linear mode operation during T1, up to 5mA.
Each leg is a separate AND gate, and could be broken out to drive 2 independent driver circuits or loads.
Diodes isolate each gate, and allow them to mix via amplitude modulation at R7 as a mixing line.
All grounds are bonded.
The Power Supply in reference has a Dual +5V REG USB channel, and a 0-120VDC main channel, with constant current control.
Signals are stable up to 600kHz, with surprisingly low rise/fall latency. (~45nS).
This circuit should be improved further with better mosfet pull-down methods.
To enhance MOSFET pull-down methods in your circuit, here are some effective solutions and options that can improve switching speed, reduce latency, and enhance overall stability: 1.
Use a Gate Driver IC Gate driver ICs are designed specifically to provide rapid pull-up and pull-down capabilities, often with very low output impedance.
They enable fast and stable transitions, helping to prevent the MOSFET from remaining in the linear (half-on) region, which can lead to excess heat.
Order this board on PCBWay → Manuals & kits Schematics & build support
About this board
Secure Supplies open hardware — gerbers published for replication. The gerbers are open — order one board or fifty, at PCBWay's price. Secure Supplies sells the build manuals, wound VIC assemblies, kits and direct build support.
More Other Boards & Parts
- Stanley A Meyer Water Fuel Injector Circuit
- Stanley A Meyer LED Pulser 2004
- Stanley A Meyer LED Pulser with Scale Switch updated 1202021 Version
- Stanley A Meyer Gas Feed Back circuit
- Stanley Meyer Stacked Cell LED Board
- Stanley A Meyer Nano Bubble Water Fuel Tank Steam Defrost Resonator
- Stanley A Meyer vw 1600 STL-OPTICAL SLOT SWITCH MOUNT
- Stanley A Meyer vw 1600 STL-ROTARY OPTICAL SLOT DISC