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Diff Probe Power Supply (Discrete)
This is a companion Daughter Board power supply for the new 10MHz and 1MHz differential probes listed in Shared Projects.
This is a voltage regulator composed of discrete parts and can be configured to supply the 15V input to the probes.
It has an optional over-voltage protection section that can be omitted.
The input to the regulator can be a USB-C PD Trigger Board, set for a 20V output.
With a 20V input, the circuit can be further simplified by using the 20V schematic.
This board will be glued together with the USB-C Trigger Board and will fit inside the differential probe enclosure.
Many more details can be found on my Blog here:
https://www.paulvdiyblogs.net/2025/08/building-new-100mhz-differential-probe.html
There is also a Github project available here:
https://github.com/paulvee/New-Differential-Probe-1-10-100MHz
Diff Probe Power Supply (Discrete)
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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