SWITCHED CAPACITOR CIRCUITS
... The OFF state influence is primarily in any current that flows from the terminals of the switch to ground. An example might be: vin ...
... The OFF state influence is primarily in any current that flows from the terminals of the switch to ground. An example might be: vin ...
RF Diode Design Guide
... input signal level for the I/Q demodulator. The outputs of the I/Q demodulator are low pass filtered and then available to be digitized in a pair of analog-to-digital converters to produce the digital baseband output signals. Both the transmitter and the receiver signal chains employ local oscillato ...
... input signal level for the I/Q demodulator. The outputs of the I/Q demodulator are low pass filtered and then available to be digitized in a pair of analog-to-digital converters to produce the digital baseband output signals. Both the transmitter and the receiver signal chains employ local oscillato ...
ChuasCircuitForHighSchoolStudents-PREPRINT
... Have you ever noticed water dripping from a tap, which is sometimes regular and sometimes irregular? Or water flowing through an obstacle in a way that can be either smooth (laminar) or turbulent? At some point in time we all notice these phenomenons, however they are usually very hard to explain. I ...
... Have you ever noticed water dripping from a tap, which is sometimes regular and sometimes irregular? Or water flowing through an obstacle in a way that can be either smooth (laminar) or turbulent? At some point in time we all notice these phenomenons, however they are usually very hard to explain. I ...
Series NRX Circuit Breaker Wiring Diagrams
... oriented for 90° lead exit, however other lead orientations are possible. Wire gauge # 18 AWG/0.82mm2. 7. The final device in the daisy-chain configuration must have a 121 ohm termination resistor installed across terminals #1 and #2 on TB2. ...
... oriented for 90° lead exit, however other lead orientations are possible. Wire gauge # 18 AWG/0.82mm2. 7. The final device in the daisy-chain configuration must have a 121 ohm termination resistor installed across terminals #1 and #2 on TB2. ...
Servay 7th Edition_Chapter33
... called the positive direction. Between points a and b, the current is decreasing in magnitude but is still in the positive direction. At point b, the current is momentarily zero; it then begins to increase in the negative direction between points b and c. At point c, the current has reached its maxi ...
... called the positive direction. Between points a and b, the current is decreasing in magnitude but is still in the positive direction. At point b, the current is momentarily zero; it then begins to increase in the negative direction between points b and c. At point c, the current has reached its maxi ...
Antenna Theory - The Free Information Society
... negative terminal as far as possible while the positive terminal will attract electrons. View B of Figure 1-1 shows the direction and distribution of electron flow. The distribution curve shows that most current flows in the center and none flows at the ends. The current distribution over the antenn ...
... negative terminal as far as possible while the positive terminal will attract electrons. View B of Figure 1-1 shows the direction and distribution of electron flow. The distribution curve shows that most current flows in the center and none flows at the ends. The current distribution over the antenn ...
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.