Electronics for Dummies - UK Edition

Product Information

If your Vdd supply is isolated and no other connection to earth exists on your circuit, there shouldn't be any problem.

With three years in the designing, making and testing, Sporting Saint is delighted to bring the AUTO LAUNCH Remote Control Dummy Launcher to the Gundog World!Please complete the purchase (or remove the quote – don't worry it's still available in My Account) before adding these additional items. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Connections to PC are a subtle way for the current to flow to ground too, since almost all ports shield is connected to earth.

When testing audio amplifiers, it is common to replace the loudspeaker with a dummy load, so that the amplifier's handling of large power levels can be tested without actually producing intense sound. An electronic load (or e-load) is a device or assembly that simulates loading on an electronic circuit. Large RF dummy load for shortwave transmitter at the Moosbrunn transmitting station of the Austrian Broadcasting Service, Moosbrunn, Austria. For PWM a DMM in DC mode should be good enough (they're conversion is made by integration, so they measure an average value), but we can never be sure, a true rms multimeter could be better, since results are so strange. The dummy load ordinarily should be a pure resistance; the amount of resistance should be the same as the impedance of the antenna or transmission line that is used with the transmitter (usually 50 Ω or 75 Ω).Analysis and implementation of an electronic load controller for a self-excited induction generator". Unfortunately, even if the supply was isolated, ground of the circuit was connected by a BNC to another channel of the scope (to view the DACs outputs)!