Engineering Science EAB_S_127_Ch3
... Calculate R1 in a Wheatstone bridge when it is balanced and when R2 = 300Ω, R3 = 200Ω, R4 = 100Ω . ...
... Calculate R1 in a Wheatstone bridge when it is balanced and when R2 = 300Ω, R3 = 200Ω, R4 = 100Ω . ...
MAX3665 622Mbps, Ultra-Low-Power, 3.3V Transimpedance Preamplifier for SDH/SONET ________________General Description
... DC Cancellation Loop The DC cancellation loop removes the DC component of the input signal by using low-frequency feedback. This feature centers the signal within the MAX3665’s dynamic range, reducing pulse-width distortion on large input signals. The output of the transimpedance amplifier is sensed ...
... DC Cancellation Loop The DC cancellation loop removes the DC component of the input signal by using low-frequency feedback. This feature centers the signal within the MAX3665’s dynamic range, reducing pulse-width distortion on large input signals. The output of the transimpedance amplifier is sensed ...
1.3. The Source-Free Series RLC Circuits
... that the circuit has reached dc steady state at t = 0. At dc steady state, the inductor acts like a short circuit, while the capacitor acts like an open circuit, so we have the circuit in Fig. 8.(a) at t = 0−. Thus, ...
... that the circuit has reached dc steady state at t = 0. At dc steady state, the inductor acts like a short circuit, while the capacitor acts like an open circuit, so we have the circuit in Fig. 8.(a) at t = 0−. Thus, ...
P6G
... For example, they are used in shaver sockets found in bathrooms. Since there is no electrical contact between the mains supply to the primary coil and the secondary coil, the sockets are not ‘live’. This means that you cannot get electrocuted if you touch them. The number of turns on the primary coi ...
... For example, they are used in shaver sockets found in bathrooms. Since there is no electrical contact between the mains supply to the primary coil and the secondary coil, the sockets are not ‘live’. This means that you cannot get electrocuted if you touch them. The number of turns on the primary coi ...
Electronic Ballasts - Lightline Electronics
... Once an electronic ballast craps out, there is seldom anything you can do but replace it. Nothing inside an electronic ballast is user-serviceable; you have to leave it to a qualified electronics technician. For this reason, preventative steps become all the more important. There are many things ele ...
... Once an electronic ballast craps out, there is seldom anything you can do but replace it. Nothing inside an electronic ballast is user-serviceable; you have to leave it to a qualified electronics technician. For this reason, preventative steps become all the more important. There are many things ele ...
General-purpose, Low-cost, Two-pole Relays for Signal Circults
... The tests were conducted at an ambient temperature of 23°C. The contact resistance data are periodically measured reference values and are not values from each monitoring operation. Contact resistance values will vary according to the switching frequency and operating environment, so be sure to chec ...
... The tests were conducted at an ambient temperature of 23°C. The contact resistance data are periodically measured reference values and are not values from each monitoring operation. Contact resistance values will vary according to the switching frequency and operating environment, so be sure to chec ...
Radial J48 Direct Box
... The Radial J48 direct box is the world's finest phantom-powered active DI. It has been optimized to handle extreme transients using only the 5 milliamps of available current from typical 48-Volt phantom power. The J48 features a unique digital switch-mode power supply that steps up the internal rail ...
... The Radial J48 direct box is the world's finest phantom-powered active DI. It has been optimized to handle extreme transients using only the 5 milliamps of available current from typical 48-Volt phantom power. The J48 features a unique digital switch-mode power supply that steps up the internal rail ...
73101 Pocket Digital Multimeter
... Do not mistake the following for a malfunction! • In DC voltage measurement, the Auto Hold function is only available for range over 4V. • The Auto Hold function cannot be applied to unstable signals. ...
... Do not mistake the following for a malfunction! • In DC voltage measurement, the Auto Hold function is only available for range over 4V. • The Auto Hold function cannot be applied to unstable signals. ...
Full Text, PDF - Superconductivity News Forum
... The objective of this experiment is to acquire the time dependant voltage, V (t), developed in HTS samples submitted to over-critical current pulses of constant amplitude, and extract their resistance R(I), which is a strong function of the applied current, I(t). In order to avoid artifacts related ...
... The objective of this experiment is to acquire the time dependant voltage, V (t), developed in HTS samples submitted to over-critical current pulses of constant amplitude, and extract their resistance R(I), which is a strong function of the applied current, I(t). In order to avoid artifacts related ...
Current Source Driving High-Efficiency / Full Range Loudspeakers
... more difficult to duplicate and interpret. One advantage to a sealed box for fullrange drivers is that the excursion becomes limited below resonance, which can reduce distortion particularly at higher levels. Driven by a voltage source, we usually see a response loss anywhere from 6 to -15dB at low- ...
... more difficult to duplicate and interpret. One advantage to a sealed box for fullrange drivers is that the excursion becomes limited below resonance, which can reduce distortion particularly at higher levels. Driven by a voltage source, we usually see a response loss anywhere from 6 to -15dB at low- ...
ENT 163 10-08 - UniMAP Portal
... Assume that the loop is in its instantaneous horizontal position (induced voltage = 0). As the loop continuous in its rotation, the induced voltage builds up to a maximum at B. As the loop continuous to rotate from B to C, the voltage decreases to zero at C. During the second half of the rev ...
... Assume that the loop is in its instantaneous horizontal position (induced voltage = 0). As the loop continuous in its rotation, the induced voltage builds up to a maximum at B. As the loop continuous to rotate from B to C, the voltage decreases to zero at C. During the second half of the rev ...
Pavlov`s Dog Associative Learning Demonstrated
... meaning that there is a correlation between the events leading to the activation of the output neuron and the input events coming to the synapse. This is implemented by ensuring that only the interaction of pre- and post-synaptic pulses leads to a significant increase in the conductivity of the NOMF ...
... meaning that there is a correlation between the events leading to the activation of the output neuron and the input events coming to the synapse. This is implemented by ensuring that only the interaction of pre- and post-synaptic pulses leads to a significant increase in the conductivity of the NOMF ...
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.