One thing I can point to for your 9v-AC requirement - Open-Emon uses a 9v-AC input for it's voltage sensor, and you can buy one for relatively cheap. It's UK-based, not sure where you are so how ...

A current transformer (CT) is a simple, practical and inexpensive means of detecting the presence of AC current. Detecting load current rather than applied voltage is a superior method of determining ...

Figure 1: Schematic of a constant-voltage transformer (CVT). Figure 2: Operating characteristics of a constant voltage transformer. Figure 3: AC waveform suffering from a complete failure. DC output ...

Because of its time-varying magnetic field, the AC system allows the use of the transformer to change voltage levels as needed. How transformers work. A basic transformer consists of two sets of coils ...

Power transformers are designed to operate at a specific frequency to step AC voltage up or down. They usually have iron cores and one or more secondary windings.

There are two types of VSP systems — a stable DC output voltage of 500 V (protected inverter of AC 380 V) or DC output voltage of 1000 V (protected inverter of AC 690 V) — to support the inverter DC ...

3. Adding a switch to a bridge rectifier will change it into a voltage doubler that uses two of the diodes. This allows you to double 120-V inputs, and bridge rectify 240-V inputs, making the dc ...

Living and working in an environment that provides the company an easy way to ensure its products weather the toughest conditions, Brunswick, Maine-based Terra Speakers manufactures some of the most ...

High Voltage, Inc. is an American test equipment manufacturing company located in rural Copake, New York. The company’s HPA line of ac testers are available with outputs up to 300 kV ac and power ...