Check out this interesting wideband AC millivoltmeter circuit from 1990. The simple design features 12 ranges, decent accuracy, 200 µV accuracy, and a frequency range from 20 Hz to more than 2 MHz.

This circuit can be used to give visual indication of the rate at which the air flows. It can be applied also to indicate whether the air is flowing in a given place. In this project, i shall be using ...

AutomationDirect announces the release of a new White Paper, “Basic Pneumatic Circuits”, which discusses common pneumatic circuits that can be used alone or as building blocks in larger pneumatics ...

The circuit in Figure 1 provides a low-cost, isolated ac-line monitor that measures ac-line-voltage level and has some other unique capabilities. The analysis of the circuit is straightforward: When ...

Abstract: This paper proposes a new simple circuit structure and a control theory of high-frequency isolated single-phase AC-DC converter. In the proposed circuit, AC power source charges the ...

"AC Fundamentals 241" discusses alternating current (AC) as the most common form of electrical power. AC waves can be viewed and measured on the screen of an oscilloscope. Alternating current is ...

Abstract: This paper presents the design and validation of a 3-phase inverter connected to an induction AC motor, which is integrated in a curtain control module. The circuit was modeled using bond ...

An adaptable classroom activity designed to introduce students aged 8-14 to e-textiles and basic circuitry. The activities can be used as standalone sessions to introduce students to the basic ...