3.3v

I'm working on an FPGA-based fluence counter project (Z-turn Board V2 Xilinx XC7Z020) that requires designing an electronic board with three high-frequency input signals: 3.3V BNC TTL input. 5V BNC TTL input that is converted to 3.3V TTL using a level shifter. NIM input at -0.8V that is...

Hi, I have an application, where external and internal power is available. I'd like the internal power to be supplied for, approximately, 1 minute after external power is removed. I have been trying to use a TLC555I combined with a relay, but the correct solution alludes me... Can someone...

Howdy, I have the EVAL_4kVA_230VAC_5LINV 5-level active neutral-point-clamped flying capacitor (ANPC-FC) inverter evaluation board at my university. When I tried to use it I found out that there is a partial short (low impedance ) between the 3.3V rail and the ground in the control board like...

Hey all! :) I was looking for a solution to protect the analog pins of the ESP32 microcontroller. My circuit can produce voltages up to 5V and the analog pins of the ESP32 can only withstand 3.3V max. I found a solution online (picture attached) but I don't understand how the circuit works. I...

I am designing a custom pcb with a 3.3V and 5V LDO power regulator that converts 24V DC input to 3.3 and 5V to power a microcontroler , ethernet modbus transcievers, and some sensors. The whole system drawns maximum 200mA of current during operation 5V LDO = L78M05ABDT-TR 3.3V LDO=...

Hi folks, I think what I have is a fairly simple question, yet I've spent so much time Googling, that I've completely lost track of what is what. I'm looking for an affordable voltage regulator to power an ESP32 from a number of AA or AAA batteries. I have bought a pair of these (Dutch...

I need an analog multiplexer that I can use with a 3.3v NodeMCU. Someone suggested the CD4051. I am just checking to make sure this works with 3.3v? Thanks!