Content for IRF740

IRF740

The IRF740 is an N-Channel Power MOSFET which can switch loads upto 400V. The Mosfet could switch loads that consume upto 10A, it can turned on by provide a gate threshold voltage of 10V across the Gate and Source pin. Since the mosfet is for switching high current high voltage loads it has a relatively high gate voltage, hence cannot be used directly with a I/O pin of a CPU. If you prefer a mosfet with low gate voltage then try IRF540N or 2N7002 etc.

DIY Sensitive STM32 Pulse Indiction Metal Detector (Arduino IDE)

“Sensitive Pulse Induction metal detector which is based on ARM STM32 microcontroller. It can detect metal coih at distance of 30cm, and big metal object at distance of more than 80 cm. Supplies: - STM32F103C8 microcontroller board - WS2812 Addressable LED Strip …

Nixie Display Module With SPI Interface

“Overview: So there are plenty of display modules available to work with an SPI bus, mostly based around LED or LCD technology. But I wanted to re-use some old Nixie teck. This Instructable is what I came up with. The …

HV Nixie DC-DC Switching Power Supply using MAX1771

“Nixie tubes need about ~180Vdc to light up and thus on most devices, a DC-DC converter is needed. Here we designed a simple DC-DC switching regulator capable of powering most of Nixie tubes. The board accepts 12Vdc input …

DIY simple smartphone Metal Detector

“DIY sensitive VLF METAL DETECTOR with Smartphone This Metal Detector detects a small metal coin at 25 cm and pot lid at 1m distance This metal detector is capable of detecting small metal objects at great distances. For example, a …

Nixie Wrist Watch, 4 Digits

“This project is about making a 4-digit nixie wrist watch. Supplies: small size nixie tubes (4) Arduino pro mimi IC 7805 IC 555 IC 74141 (or 7441) MPSA42 Transistors (5) MPSA92 transistors (4) RTC module DS3231 IRF740 mosfet UF4007 diode …

Project  Nixie Clock

Nixie Clock

“This is our Nixie Clock made with atmega 328 We all know these wonderful old lamps (Nixie). It is time to re-use them! so we made this nixie clock.”