Experiment 9: Driven RLC Circuits
... Further Questions (for experiment, thought, future exam questions…) ...
... Further Questions (for experiment, thought, future exam questions…) ...
Series – Parallel Dc Circuits
... Look for obvious damaged components Take voltage readings of individual components (observe safety requirements) Look for an open or a short circuit condition Check against expected values ...
... Look for obvious damaged components Take voltage readings of individual components (observe safety requirements) Look for an open or a short circuit condition Check against expected values ...
lampiran - UniMAP Portal
... Diode limiters are wave-shaping circuits: can be used to prevent signal voltages from going above or below certain levels. The limiting level may be either equal to the diode’s barrier potential or made variable with a dc source voltage. These circuits are sometimes called clippers because of its cl ...
... Diode limiters are wave-shaping circuits: can be used to prevent signal voltages from going above or below certain levels. The limiting level may be either equal to the diode’s barrier potential or made variable with a dc source voltage. These circuits are sometimes called clippers because of its cl ...
Introduction
... because if one lamp burns out, all the other lamps on the circuit will go out. Figure 10–2 Many strings of Christmas lights are made in series circuits – if one bulb burns out, it requires examining EVERY bulb in order to find the bad one because the entire string stops burning when this occurs! Mos ...
... because if one lamp burns out, all the other lamps on the circuit will go out. Figure 10–2 Many strings of Christmas lights are made in series circuits – if one bulb burns out, it requires examining EVERY bulb in order to find the bad one because the entire string stops burning when this occurs! Mos ...
A Cross-Coupled CMOS Negative Capacitor for Wideband Metamaterial Applications
... Abstract—Non-Foster circuits can be used to provide broadband impedance matching for antennas and metamaterials. These circuits allow effective matching over a much wider bandwidth than is expected from traditional passive components. Therefore, this paper considers the design and test of a negative ...
... Abstract—Non-Foster circuits can be used to provide broadband impedance matching for antennas and metamaterials. These circuits allow effective matching over a much wider bandwidth than is expected from traditional passive components. Therefore, this paper considers the design and test of a negative ...
Name:
... Electric Circuits with CPO Equipment Lab INTRODUCTION: A simple electric circuit contains one electrical device, a battery and a switch. Flashlights use this type of circuit. However, most electrical systems, such as a stereo, contain many electrical devices connected together in multiple circuits. ...
... Electric Circuits with CPO Equipment Lab INTRODUCTION: A simple electric circuit contains one electrical device, a battery and a switch. Flashlights use this type of circuit. However, most electrical systems, such as a stereo, contain many electrical devices connected together in multiple circuits. ...
Chapter 3: Capacitors, Inductors, and Complex Impedance ( )
... For short times, you do not notice that the break is there. Negative charge initially flows in to one side and out from out the other side just as if the two leads were connected. For fast signals, the capacitor “looks” like a short-circuit. But after a while the capacitor’s reservoirs fill, the cur ...
... For short times, you do not notice that the break is there. Negative charge initially flows in to one side and out from out the other side just as if the two leads were connected. For fast signals, the capacitor “looks” like a short-circuit. But after a while the capacitor’s reservoirs fill, the cur ...
Crystal radio
A crystal radio receiver, also called a crystal set or cat's whisker receiver, is a very simple radio receiver, popular in the early days of radio. It needs no other power source but that received solely from the power of radio waves received by a wire antenna. It gets its name from its most important component, known as a crystal detector, originally made from a piece of crystalline mineral such as galena. This component is now called a diode.Crystal radios are the simplest type of radio receiver and can be made with a few inexpensive parts, such as a wire for an antenna, a coil of copper wire for adjustment, a capacitor, a crystal detector, and earphones. They are distinct from ordinary radios as they are passive receivers, while other radios use a separate source of electric power such as a battery or the mains power to amplify the weak radio signal so as to make it louder. Thus, crystal sets produce rather weak sound and must be listened to with sensitive earphones, and can only receive stations within a limited range.The rectifying property of crystals was discovered in 1874 by Karl Ferdinand Braun, and crystal detectors were developed and applied to radio receivers in 1904 by Jagadish Chandra Bose, G. W. Pickard and others.Crystal radios were the first widely used type of radio receiver, and the main type used during the wireless telegraphy era. Sold and homemade by the millions, the inexpensive and reliable crystal radio was a major driving force in the introduction of radio to the public, contributing to the development of radio as an entertainment medium around 1920.After about 1920, crystal sets were superseded by the first amplifying receivers, which used vacuum tubes (Audions), and became obsolete for commercial use. They, however, continued to be built by hobbyists, youth groups, and the Boy Scouts as a way of learning about the technology of radio. Today they are still sold as educational devices, and there are groups of enthusiasts devoted to their construction who hold competitions comparing the performance of their home-built designs.Crystal radios receive amplitude modulated (AM) signals, and can be designed to receive almost any radio frequency band, but most receive the AM broadcast band. A few receive shortwave bands, but strong signals are required. The first crystal sets received wireless telegraphy signals broadcast by spark-gap transmitters at frequencies as low as 20 kHz.