Document
... The poles of a Chebyshev type circuit are positioned on an ellipse, whose longer axis is on the jω axis and the length of the longer axis corresponds to the band width of the circuit. It has been shown that the appropriate positions of the poles for a certain amount of ripple can be obtained from th ...
... The poles of a Chebyshev type circuit are positioned on an ellipse, whose longer axis is on the jω axis and the length of the longer axis corresponds to the band width of the circuit. It has been shown that the appropriate positions of the poles for a certain amount of ripple can be obtained from th ...
Microwave Oscillators
... Eliminates the need for many independent crystal oscillators in a multichannl system (ex. GSM system) Can be easily implemented using a variety of available integrated circuits. There are three basic methods that can be used, the most popular method is the phase-locked loop. ...
... Eliminates the need for many independent crystal oscillators in a multichannl system (ex. GSM system) Can be easily implemented using a variety of available integrated circuits. There are three basic methods that can be used, the most popular method is the phase-locked loop. ...
Test - Electro Tech Online
... circuit board with an oscilloscope I bought several years ago from a TV shop that was selling out. As shown in figure 2, I sketched the traces of the voltages I encountered and tried to line up the timing as best I could given my limited understanding of how these components work. The trace patterns ...
... circuit board with an oscilloscope I bought several years ago from a TV shop that was selling out. As shown in figure 2, I sketched the traces of the voltages I encountered and tried to line up the timing as best I could given my limited understanding of how these components work. The trace patterns ...
A Custom built UHF to VHF downconverter
... A cheap low NF dual gate mosfet was chosen as the preamplifier device. Due to the large input and output impedance of the gate and drain a single stage matching network can achieve narrowband selectivity, especially at the input to alleviate IMD caused by close by SA Police radios at about 420MHz. ...
... A cheap low NF dual gate mosfet was chosen as the preamplifier device. Due to the large input and output impedance of the gate and drain a single stage matching network can achieve narrowband selectivity, especially at the input to alleviate IMD caused by close by SA Police radios at about 420MHz. ...
Two Stage Transistor Audio Amplifier
... transistors. In order to give a distortion free output, one transistor amplifies the positive half cycles and the other transistor amplifies the negative half cycles. Such an amplifier is known as a push-pull amplifier. The input signal is split by a centre tapped transformer amplified by two transi ...
... transistors. In order to give a distortion free output, one transistor amplifies the positive half cycles and the other transistor amplifies the negative half cycles. Such an amplifier is known as a push-pull amplifier. The input signal is split by a centre tapped transformer amplified by two transi ...
THE HQ-170A ATION S COMMUN 1C RECEIVER
... other words, never leave the slot frequency control at or near the zero setting. If this procedure is not followed it is obvious that the center of the pass band will be slotted out, in some cases this being quite obvious by producing 2 spot tuning or 2 peak S meter readings. After tuning in the con ...
... other words, never leave the slot frequency control at or near the zero setting. If this procedure is not followed it is obvious that the center of the pass band will be slotted out, in some cases this being quite obvious by producing 2 spot tuning or 2 peak S meter readings. After tuning in the con ...
Maintenance and Light Repair
... Answer the questions and identify the page number that the answer was found in the textbook ...
... Answer the questions and identify the page number that the answer was found in the textbook ...
CN-0113
... The circuit offers 1024 different gains, controllable through an SPI-compatible serial digital interface. The ±1% resistor tolerance performance of the AD5292 provides low gain error over the full resistor range, as shown in Figure 2. ...
... The circuit offers 1024 different gains, controllable through an SPI-compatible serial digital interface. The ±1% resistor tolerance performance of the AD5292 provides low gain error over the full resistor range, as shown in Figure 2. ...
SERIES AND PARALLEL RESISTANCE CIRCUIT
... A series circuit is one in which total line current passes through each and every conductor in the circuit. two or more electric component are considered to be in series in the same current flows through all these component ...
... A series circuit is one in which total line current passes through each and every conductor in the circuit. two or more electric component are considered to be in series in the same current flows through all these component ...
Didel Ir3x - 3 outputs IR receiver for less than 5 grams planes
... Iz2 comptible with PicooZ transmitter http://www.didel.com/Ir/Iz2.pdf Ur3 compatible with Ir transmitter (Didel, Tanaka) or any base radio receiver, see http://www.didel.com/Ir/UrSoft.pdf The Ir6x (0.45g), see http://www.didel.com/Ir/Ir6x.pdf, supports up to 6 channels, and is good for special ultra ...
... Iz2 comptible with PicooZ transmitter http://www.didel.com/Ir/Iz2.pdf Ur3 compatible with Ir transmitter (Didel, Tanaka) or any base radio receiver, see http://www.didel.com/Ir/UrSoft.pdf The Ir6x (0.45g), see http://www.didel.com/Ir/Ir6x.pdf, supports up to 6 channels, and is good for special ultra ...
talk
... [1] ‘Design of a New Low-Power 2.4 GHz CMOS LNA’, Ickjin Kwon and Hyungcheol Shin Journal of the Korean Physical Society, Vol. 40, No. 1, January 2002, pp. 47 [2] ‘Low-power 5 GHz LNA and VCO in 90 nm RF CMOS’ , D. Linten et.al, VLSI Circuits 2004, Digest of Technical Papers. 2004 Symposium, 17-19 J ...
... [1] ‘Design of a New Low-Power 2.4 GHz CMOS LNA’, Ickjin Kwon and Hyungcheol Shin Journal of the Korean Physical Society, Vol. 40, No. 1, January 2002, pp. 47 [2] ‘Low-power 5 GHz LNA and VCO in 90 nm RF CMOS’ , D. Linten et.al, VLSI Circuits 2004, Digest of Technical Papers. 2004 Symposium, 17-19 J ...
Multi-functional Packaged Antennas for Next
... to the o/p impedance of the opamp, which is very useful sometimes. Thus the op-amp acts as the buffer stage preventing the o/p load fluctuations to affect the i/p voltage signal. ...
... to the o/p impedance of the opamp, which is very useful sometimes. Thus the op-amp acts as the buffer stage preventing the o/p load fluctuations to affect the i/p voltage signal. ...
VLF Designs specializing in Analog Telemetry Earthquake
... narrow band crystal filters with a wider band monolithic ceramic filter. The 2nd IF ceramic filter has been replaced with a linear phase response unit in order to insure very little distortion in the demodulated signal, thus allowing the use of multiple carriers with little or no intermodulation. A ...
... narrow band crystal filters with a wider band monolithic ceramic filter. The 2nd IF ceramic filter has been replaced with a linear phase response unit in order to insure very little distortion in the demodulated signal, thus allowing the use of multiple carriers with little or no intermodulation. A ...
Regenerative circuit
The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.