Set No: 1
... 5. a) Explain how an unknown voltage can be measured by using a polar type potentiometer? b) Calculate the inductance of a coil from the following measurement on an a.c. potentiometer. Voltage drop across a 0.1 standard resistor connected in series with the coil = 0.613 ∟120 6′. Voltage across the t ...
... 5. a) Explain how an unknown voltage can be measured by using a polar type potentiometer? b) Calculate the inductance of a coil from the following measurement on an a.c. potentiometer. Voltage drop across a 0.1 standard resistor connected in series with the coil = 0.613 ∟120 6′. Voltage across the t ...
Impedance Z
... While the use of CPE usually increases the “goodness of the fit”, the physical meaning of the CPE should be discussed. Avoid using CPE. If this is inevitable, the causes of the nonidealism should be identified. CPE is often used to describe non-ideal capacitive behaviour. However, the amplitud ...
... While the use of CPE usually increases the “goodness of the fit”, the physical meaning of the CPE should be discussed. Avoid using CPE. If this is inevitable, the causes of the nonidealism should be identified. CPE is often used to describe non-ideal capacitive behaviour. However, the amplitud ...
PI3DPxxx_App_PI3HDxxx-Layout Guideline
... One low-ESR 0.1uF decoupling capacitor should be mounted at each VDD pin or should supply bypassing for at most two VDD pins. Capacitors of smaller body size, i.e. 0402 package, is more preferable as the insertion loss is lower. The capacitor should be placed next to the VDD pin. One capacitor with ...
... One low-ESR 0.1uF decoupling capacitor should be mounted at each VDD pin or should supply bypassing for at most two VDD pins. Capacitors of smaller body size, i.e. 0402 package, is more preferable as the insertion loss is lower. The capacitor should be placed next to the VDD pin. One capacitor with ...
Full Text
... references cited therein. They have utilized the bulk inputted configurations which are area efficient. However, the major drawbacks of these circuits are the devices mismatch and the limited gate-bulk operating voltage. Among the literatures reported, Carlos and Antonio proposed a current-mode squa ...
... references cited therein. They have utilized the bulk inputted configurations which are area efficient. However, the major drawbacks of these circuits are the devices mismatch and the limited gate-bulk operating voltage. Among the literatures reported, Carlos and Antonio proposed a current-mode squa ...
- Bangladesh Amateur Radio League
... b. Keep your CQ to less than 2 minutes in length to avoid interference to contacts that may be in progress c. Listen for 2 minutes before calling CQ to avoid interference to contacts that maybe in progress d. Call CQ at low power first and if there is no indication of interference, increase power as ...
... b. Keep your CQ to less than 2 minutes in length to avoid interference to contacts that may be in progress c. Listen for 2 minutes before calling CQ to avoid interference to contacts that maybe in progress d. Call CQ at low power first and if there is no indication of interference, increase power as ...
Using DSP Hybrids in High Power Applications Initial Design Tips
... for high gain, high power applications. The output stage on all of those hybrids is a digital drive H−bridge with an output impedance of no more than 20 W and is capable of driving zero−bias receivers of very low impedance. Laboratory measurements show that these hybrids can drive receivers with an ...
... for high gain, high power applications. The output stage on all of those hybrids is a digital drive H−bridge with an output impedance of no more than 20 W and is capable of driving zero−bias receivers of very low impedance. Laboratory measurements show that these hybrids can drive receivers with an ...
Experiment6
... B-1: Look at the input voltage V0 and the voltage across the resistor, VR , on the oscilloscope. Be sure to pay attention to where “ground” is located in your circuit and use the instrumentation amplifier if necessary. Determine the resonant frequency f0 = 0/2 by looking for the frequency at which ...
... B-1: Look at the input voltage V0 and the voltage across the resistor, VR , on the oscilloscope. Be sure to pay attention to where “ground” is located in your circuit and use the instrumentation amplifier if necessary. Determine the resonant frequency f0 = 0/2 by looking for the frequency at which ...
Example: Diode Circuit Transfer Function
... In other words, we have determined that the ideal diode will be reverse biased when vS < 0.7 V , and that the output voltage will ...
... In other words, we have determined that the ideal diode will be reverse biased when vS < 0.7 V , and that the output voltage will ...
APP033 Battery Cell - Caltest Instruments Ltd
... technical terms and instrumentation they do not commonly encounter. This application note discusses a measurement approach utilising N4L instrumentation which provides impedance measurements of a range of batteries/cells, from Lithium-Ion to Hydrogen fuel. Why do we perform EIS? Several important ch ...
... technical terms and instrumentation they do not commonly encounter. This application note discusses a measurement approach utilising N4L instrumentation which provides impedance measurements of a range of batteries/cells, from Lithium-Ion to Hydrogen fuel. Why do we perform EIS? Several important ch ...
Elec301
... air to flow into the tyre and not out, the diode (ideally) allows current to flow one way only. In practice there is a very small current in the reverse direction, but for our purposes we can approximate this to zero. In this experiment you will gain some practical experience in the use of a solid s ...
... air to flow into the tyre and not out, the diode (ideally) allows current to flow one way only. In practice there is a very small current in the reverse direction, but for our purposes we can approximate this to zero. In this experiment you will gain some practical experience in the use of a solid s ...
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.