Lab 3: Matching Networks and Tuning Stubs
... Explain your answer both qualitatively and quantitatively. 2. Asymmetric Stubs Another PC Board in the toolbox was made to zero the conductance of a 5.6nH inductor at 1.25GHz. Measure and model the circuit. Does this circuit behave as expected? Modify the circuit with copper tape to tune to the corr ...
... Explain your answer both qualitatively and quantitatively. 2. Asymmetric Stubs Another PC Board in the toolbox was made to zero the conductance of a 5.6nH inductor at 1.25GHz. Measure and model the circuit. Does this circuit behave as expected? Modify the circuit with copper tape to tune to the corr ...
Operational amplifier 741 as Wein bridge Oscillator
... reactance. Again output voltage will be zero because the input signal is dropped across the R1 and C1combination. Here, the circuit acts like a 'lead circuit'. But at one particular frequency between the two extremes, the output voltage reaches to the maximum value. At this frequency only, resistanc ...
... reactance. Again output voltage will be zero because the input signal is dropped across the R1 and C1combination. Here, the circuit acts like a 'lead circuit'. But at one particular frequency between the two extremes, the output voltage reaches to the maximum value. At this frequency only, resistanc ...
A Good Regenerative Receiver
... frequencies. Perhaps that you need to add an extra 0.1uF capacitor in parallel for decoupling of the RF frequencies but I did not hear any difference. The regeneration is controlled by means of the 1k potentiometer. Adjust it for maximum sensitivity. In the original simple receiver, 10k was used, b ...
... frequencies. Perhaps that you need to add an extra 0.1uF capacitor in parallel for decoupling of the RF frequencies but I did not hear any difference. The regeneration is controlled by means of the 1k potentiometer. Adjust it for maximum sensitivity. In the original simple receiver, 10k was used, b ...
Single Stage Transistor Amplifiers Introduction
... (i) In drawing the D.C. equivalent circuit, only D.C. conditions are considered i.e. it is presumed that no signal is applied. For this purpose, all A.C. sources are reduced to zero and all the capacitors are considered open. If we carefully apply these steps to a transistor amplifier, we shall get ...
... (i) In drawing the D.C. equivalent circuit, only D.C. conditions are considered i.e. it is presumed that no signal is applied. For this purpose, all A.C. sources are reduced to zero and all the capacitors are considered open. If we carefully apply these steps to a transistor amplifier, we shall get ...
View Greenlee CS-8000 spec sheet
... Seeker™ Circuit Tracer. Taking advantage of patented non-directional sensing technology, the Greenlee CS-8000 Circuit Seeker™ Circuit Tracer promises to locate circuits that other units can’t. Utilizing both visual and audible signals in an ergonomically-designed handset, the CS-8000 is able to trac ...
... Seeker™ Circuit Tracer. Taking advantage of patented non-directional sensing technology, the Greenlee CS-8000 Circuit Seeker™ Circuit Tracer promises to locate circuits that other units can’t. Utilizing both visual and audible signals in an ergonomically-designed handset, the CS-8000 is able to trac ...
universitetet i oslo
... How large is the total voltage gain in this circuit (Av = Vut/Vinn) for low frequencies ( 1 - 10 Hz) How large is the the voltage gain – in dB - in the last opamp (U2) for low frequencies (1-10 Hz) ? These opamps have a 1 MHz Gain Bandwidth Product (GBW). At what frequency will the total voltage gai ...
... How large is the total voltage gain in this circuit (Av = Vut/Vinn) for low frequencies ( 1 - 10 Hz) How large is the the voltage gain – in dB - in the last opamp (U2) for low frequencies (1-10 Hz) ? These opamps have a 1 MHz Gain Bandwidth Product (GBW). At what frequency will the total voltage gai ...
Lab 5: Frequency Response of an Op Amp Circuit
... R1 = in the range of 2 k to 5 k R2 = in the range of 5 k to 10 k C in the range of 0.07 μF to 0.5 μF. Collect the required components; measure and record their values. Build the circuit and connect it to a sinusoidal source (FG). Test the circuit for ω ranging from 0.1 krad/s to 30 krad/s. Note: ...
... R1 = in the range of 2 k to 5 k R2 = in the range of 5 k to 10 k C in the range of 0.07 μF to 0.5 μF. Collect the required components; measure and record their values. Build the circuit and connect it to a sinusoidal source (FG). Test the circuit for ω ranging from 0.1 krad/s to 30 krad/s. Note: ...
Rapid Electronics Ltd DATA SHEET MK484 RADIO IC
... Example Circuit This circuit provides a complete RF amplifier, Detection and AGC circuit, which requires only a few external components to give a high quality AM Tuner. Good audio quality can be achieved, and current consumption is extremely low. No setting up or alignment is required and the circui ...
... Example Circuit This circuit provides a complete RF amplifier, Detection and AGC circuit, which requires only a few external components to give a high quality AM Tuner. Good audio quality can be achieved, and current consumption is extremely low. No setting up or alignment is required and the circui ...
Bubba oscillator Summary References Related Web sites
... test circuit oscillated at 1.76 kHz rather than the ideal frequency 1.72 kHz when the gain was 4.17 rather than the ideal gain of 4. With low gain, A, and low bias current op amps, the gain setting resistor, RG, does not load the last RC section thus insuring oscillator frequency accuracy. Very low- ...
... test circuit oscillated at 1.76 kHz rather than the ideal frequency 1.72 kHz when the gain was 4.17 rather than the ideal gain of 4. With low gain, A, and low bias current op amps, the gain setting resistor, RG, does not load the last RC section thus insuring oscillator frequency accuracy. Very low- ...
3.7 Operational amplifiers
... 3.7 Operational amplifiers The use of transistors requires many additional components. The invention of the integrated circuit in 1958 by Jack Kilby opened up a whole new era for electronics. Even the simplest Integrated circuits contain many transistors and the components needed to make a usable de ...
... 3.7 Operational amplifiers The use of transistors requires many additional components. The invention of the integrated circuit in 1958 by Jack Kilby opened up a whole new era for electronics. Even the simplest Integrated circuits contain many transistors and the components needed to make a usable de ...
The Double-Triode as AM-Mixer
... building blocks, and thus two-stage IF-amplification was achieved. The front end circuit thus entails four VHF/FM and two IF circuits Figure 2: Reflex usage of (Figure 4). Further details can be the VHF/FM preamp stage observed in Figure 2. The preamp- as FM-IF amplifier . tube operates with grounde ...
... building blocks, and thus two-stage IF-amplification was achieved. The front end circuit thus entails four VHF/FM and two IF circuits Figure 2: Reflex usage of (Figure 4). Further details can be the VHF/FM preamp stage observed in Figure 2. The preamp- as FM-IF amplifier . tube operates with grounde ...
Document
... The transmission frequency of a mobile ranges from 0.9GHz to 3GHz.So a circuit capable of detecting gigahertz signals is needed. So we use a disk capacitor C4(220nF), which will capture the signals from the active cell phone transmission. The disk capacitor along with its leads form a small gigahert ...
... The transmission frequency of a mobile ranges from 0.9GHz to 3GHz.So a circuit capable of detecting gigahertz signals is needed. So we use a disk capacitor C4(220nF), which will capture the signals from the active cell phone transmission. The disk capacitor along with its leads form a small gigahert ...
VHF Expandable Receiver Multicoupler
... Multicoupler a broadband, expandable unit that has been designed to cater for analogue and digital VHF system applications. The unit utilises a low-noise, high 3OIP, quadrature amplifier (LNA) to enhance base station receiver performance, with inherent redundancy provided in the quadrature design. T ...
... Multicoupler a broadband, expandable unit that has been designed to cater for analogue and digital VHF system applications. The unit utilises a low-noise, high 3OIP, quadrature amplifier (LNA) to enhance base station receiver performance, with inherent redundancy provided in the quadrature design. T ...
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.