Built a 1.4u and not getting the proper voltage on VCC or VIN when powered via the transformer.
Transformer outputs ~27.2 VAC
VCC Voltage 0.350
VIN Voltage 0
Resistance Between PTC (top leg) and D1 (left leg) is .5 Ohms
Using a Fluke 12B the Diode Test mode outputs a reading of for D1 1.571
Without the transformer connected and using a USB cable VIN and VCC voltage is correct
Any guidance would be appreciated.