MX341 AUTOMATIC VOLTAGE REGULATOR (AVR)
... control anti-clockwise until the generator voltage starts to become unstable. The optimum or critically damped position is slightly clockwise from this point (i.e. where the machine volts are stable but close to the unstable region). OPTIMUM RESPONSE SELECTION The stability selection ‘jumper’ should ...
... control anti-clockwise until the generator voltage starts to become unstable. The optimum or critically damped position is slightly clockwise from this point (i.e. where the machine volts are stable but close to the unstable region). OPTIMUM RESPONSE SELECTION The stability selection ‘jumper’ should ...
December 2009 - Designing a Solar Cell Battery Charger
... across a current sensing resistor in series with the inductor of the buck regulator charging circuit. Decreased illumination (and/or increased charge current demands) can both cause the input voltage (panel voltage) to fall, pushing the panel away from its point of maximum power output. With the LT3 ...
... across a current sensing resistor in series with the inductor of the buck regulator charging circuit. Decreased illumination (and/or increased charge current demands) can both cause the input voltage (panel voltage) to fall, pushing the panel away from its point of maximum power output. With the LT3 ...
“Fuzzy Logic Speed Controllers Using FPGA Technique For Three
... Complementary unijunction transistor (CUJT) Programmable unijunction transistor (PUT) The UJT has one pn junction and is used mainly as a triggering device in thyristor circuits and can also be used in oscillator circuits. The symbol is similar to a JFET. Note the angle of the emitter. The other ter ...
... Complementary unijunction transistor (CUJT) Programmable unijunction transistor (PUT) The UJT has one pn junction and is used mainly as a triggering device in thyristor circuits and can also be used in oscillator circuits. The symbol is similar to a JFET. Note the angle of the emitter. The other ter ...
STEVAL-ISA001V1
... through two output voltages of 5Vdc and 12Vdc. It contains an input fuse (F2), EMI filtering (C1, L1, and C2), and the secondary regulation is provided by U2 and U3, the optocoupler and TL431 respectively. For output filtering, the components used are the output capacitors C8 and C10. These two outp ...
... through two output voltages of 5Vdc and 12Vdc. It contains an input fuse (F2), EMI filtering (C1, L1, and C2), and the secondary regulation is provided by U2 and U3, the optocoupler and TL431 respectively. For output filtering, the components used are the output capacitors C8 and C10. These two outp ...
multi-port networks
... a) VTC using the point-by-point method. Table with vI and vO for vI=-10V, -5V, 0V, +5V, +10V. Table with vI and vO for vI=-1V, 0V, +0.4V, +0.8V, +1.5V. Draw two graphs representing vO(vI) for the data from the two tables. Specify on the graphs the on and the off states of the diode. In what situatio ...
... a) VTC using the point-by-point method. Table with vI and vO for vI=-10V, -5V, 0V, +5V, +10V. Table with vI and vO for vI=-1V, 0V, +0.4V, +0.8V, +1.5V. Draw two graphs representing vO(vI) for the data from the two tables. Specify on the graphs the on and the off states of the diode. In what situatio ...
Common-Emitter Amplifier - ee.iitb
... (see Fig. 4). In this region, the impedances due to the coupling capacitors (CB and CC ) and of the bypass capacitor CE are negligibly small (i.e., they can be replaced with short circuits), and the impedances due to the BJT device capacitances are very large compared to the other components in the ...
... (see Fig. 4). In this region, the impedances due to the coupling capacitors (CB and CC ) and of the bypass capacitor CE are negligibly small (i.e., they can be replaced with short circuits), and the impedances due to the BJT device capacitances are very large compared to the other components in the ...
Tektronix MBD: Products > High€Voltage Differential Probes P5200
... floating voltages up to 5,600 V (DC + pk AC) safely and has a bandwidth up to 50 MHz. It is supplied with two sizes of hook tips and has an overrange visual and oral indicator which warns the user when they are exceeding the linear range of the probe. It can be used with Tektronix TEKPROBETM interfa ...
... floating voltages up to 5,600 V (DC + pk AC) safely and has a bandwidth up to 50 MHz. It is supplied with two sizes of hook tips and has an overrange visual and oral indicator which warns the user when they are exceeding the linear range of the probe. It can be used with Tektronix TEKPROBETM interfa ...
Inductors & Resonance
... For example, if the secondary has half as many turns as there are on the primary, and 100V AC is applied to the primary, the output from the secondary will be 50V. Transformers can be step-up or step-down (in voltage). With twice as many turns on the secondary as there are on the primary and 100 V a ...
... For example, if the secondary has half as many turns as there are on the primary, and 100V AC is applied to the primary, the output from the secondary will be 50V. Transformers can be step-up or step-down (in voltage). With twice as many turns on the secondary as there are on the primary and 100 V a ...
Instruction Manuals
... base plate temperature. Note that operation within the hatched areas will cause a significant level of ripple and ripple noise. ¡Please measure the temperature on the aluminum base plate edge side when you cannot measure the temperature of the center part of the aluminum base plate. In this case, pl ...
... base plate temperature. Note that operation within the hatched areas will cause a significant level of ripple and ripple noise. ¡Please measure the temperature on the aluminum base plate edge side when you cannot measure the temperature of the center part of the aluminum base plate. In this case, pl ...
Hari's Presentation
... An atomic force microscope image of a simple circuit with 17 memristors lined up in a row. Each memristor has a bottom wire that contacts one side of the device and a top wire that contacts the opposite side. The devices act as 'memory resistors', with the resistance of each device depending on the ...
... An atomic force microscope image of a simple circuit with 17 memristors lined up in a row. Each memristor has a bottom wire that contacts one side of the device and a top wire that contacts the opposite side. The devices act as 'memory resistors', with the resistance of each device depending on the ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.