• Trying to find a high-speed, high-power transistor to use as a switch

    I'm designing a high power H-bridge circuit, and I'm trying to find the best transistor for the design. The most important parameters are that it has - 10MHz switching speed frequency - Low on-state resistance - Low off-state capacitance From there…

  • 'Push to make' HDMI switch?

    I'm looking for a 'push to make' HDMI switch which could be used to flash up an image onto a secondary screen for a customer to view but then would cut out again when released. Does such a thing exist?

  • switch KCD3 15A250V/125V T125/55

    Hello, I am looking for an electric switch KCD3 15A250V/125V T125/55 It is for a heater and it melted cuz we left the heater work all night :( I can't find it online, Is there anyone that can please let me know if i can use an other type of switches…

  • ms88e6390 mdio read/write problem

    Hi everybody, This is my first topic in this forum. I have a problem about ms88e6390 marvell ethernet switch. I use stm32f407 for controlling the switch. MDC is running at 1.64MHz and when I look at MDIO and MDC signals on oscilloscope, there is no…

  • bubble detecting sensor.

    Im looking for a sensor which can detect the presence of gas in a liquid line. The scope of the sensor is to be used in a wine dispensing system. My hope is when the sensor detects a gas bubble in the line, it can shut off the flow, or lack thereof, of…

  • Remote USB connection switch

    What is it about? I'm running a remote operated system with multiple devices connected to control computers via USB interface. For some reasons sometimes a device should be reconnected, plugged in or out physically. In order to do this I need a device…

  • AC Current Regulation

    I am making a sprinkler timer and to activate the sprinkler valves i have to send 24 volts AC current. How can i send ac current to the valves when i send a signal form my micro-controller?

  • need help finding the right sensor

    I am the one working on the ping pong table and I have come to a halt. jason721 helped me by showing me inductive technology to try I am at a standstill at trying to figure it out. I don't have much money for any kits to learn how to use it and I have…

  • light up ping pong table

    Hi. My friends and I have always loved ping pong and I have though of a way to make it better. I am somewhat new to programming and designing, but I am looking to start off by building a light up ping pong table. the design would feature( or would like…

  • door opening automation help, beginner

    Hello, I'm trying to make a automatic lock for my front door. I have seen Ben from the Ben Heck Show do it but I want a summary of what i need and have to do, I have no clue at all since I haven't got experience with any hardware electronic stuff like…

  • IOS Controlled 12V Switch Bank - Does it exist?

    I need a switch bank to control 12v lights in my van and I also want to be able to control the switches remotely either by a dedicated remote or via an iphone app which would be the best. Does anybody know of a product like this already in existence?…

  • Battery Replacment for Catalyst 2948G

    I have this rack mountable cisco switch, that is rather old, but its gigibit and the only 48 Port switch that I can get my hands on. Well I have two one that is working all good and this second one where the 3v coin battery is pumping out 0.5v compated…