Design and Manufacture of the UIM Driver Unit
... pole in the filter is followed by a zero at 10 Hz. Each filter stage has a relay which may be switched in or out as required, to configure the unit in its various modes of operation. The circuit is a true four terminal design. The output stage has a gain of 1.2, and is followed by a series resistor ...
... pole in the filter is followed by a zero at 10 Hz. Each filter stage has a relay which may be switched in or out as required, to configure the unit in its various modes of operation. The circuit is a true four terminal design. The output stage has a gain of 1.2, and is followed by a series resistor ...
MAX8215/MAX8216 ±5V, ±12V (±15V) Dedicated Microprocessor Voltage Monitors _______________General Description
... supply bypassing circuitry (other than the normally recommended 0.1µF capacitor) is required when performing this function. However, using resistor values higher than 100kΩ at the auxiliary comparator’s input requires attention to eliminate potential oscillations. Also, particularly low pull-up resi ...
... supply bypassing circuitry (other than the normally recommended 0.1µF capacitor) is required when performing this function. However, using resistor values higher than 100kΩ at the auxiliary comparator’s input requires attention to eliminate potential oscillations. Also, particularly low pull-up resi ...
EXPERIMENT NO 4
... (i) Switch-off the +12V VCC supply to the BJT circuit. Make RC=1.5K. Now connect the electrolytic capacitors C1, C2 and load resistance RL. Take care to observe the correct polarities when you connect the electrolytic capacitors. (ii) Adjust the FG output to give 0.5 sin t V (f=1 KHz). Switch on VC ...
... (i) Switch-off the +12V VCC supply to the BJT circuit. Make RC=1.5K. Now connect the electrolytic capacitors C1, C2 and load resistance RL. Take care to observe the correct polarities when you connect the electrolytic capacitors. (ii) Adjust the FG output to give 0.5 sin t V (f=1 KHz). Switch on VC ...
Lecture 02 Resistance and Resistors Full
... bases of cylinders having the radii r1 and r2 as indicated in Fig. 3. Then: ...
... bases of cylinders having the radii r1 and r2 as indicated in Fig. 3. Then: ...
MT
... The notification appliance shall be a Wheelock Series MT audible/visual appliance or equivalent. Notification appliance shall be electronic and use solid state components. Electromechanical alternatives are not approved. Each electronic appliance shall provide eight (8) field selectable alarm tones. ...
... The notification appliance shall be a Wheelock Series MT audible/visual appliance or equivalent. Notification appliance shall be electronic and use solid state components. Electromechanical alternatives are not approved. Each electronic appliance shall provide eight (8) field selectable alarm tones. ...
Moving-iron ammeters
... voltage; they are designed for minimal burden, which refers to the voltage drop across the ammeter, which is typically a small fraction of a volt. They are almost a short circuit. Ordinary Weston-type meter movements can measure only milliamperes at most, because the springs and practical coils can ...
... voltage; they are designed for minimal burden, which refers to the voltage drop across the ammeter, which is typically a small fraction of a volt. They are almost a short circuit. Ordinary Weston-type meter movements can measure only milliamperes at most, because the springs and practical coils can ...
Fundamentals of Applied Electromagnetics
... An air line is a transmission line for which air is the dielectric material present between the two conductors, which renders G’ = 0. In addition, the conductors are made of a material with high conductivity so that R’ ≈0. For an air line with characteristic impedance of 50 and phase constant of 20 ...
... An air line is a transmission line for which air is the dielectric material present between the two conductors, which renders G’ = 0. In addition, the conductors are made of a material with high conductivity so that R’ ≈0. For an air line with characteristic impedance of 50 and phase constant of 20 ...
In 2007, lightning caused an electrical ground fault that shut down a
... for AC currents). They are not sensitive to impulsive leakage currents up to a peak of 250 A. These types of current leaks typically occur when voltage impulses overlap on the mains, which can be caused by the insertion of fluorescent bulbs, X-ray equipment, data processing systems and SCR controls. ...
... for AC currents). They are not sensitive to impulsive leakage currents up to a peak of 250 A. These types of current leaks typically occur when voltage impulses overlap on the mains, which can be caused by the insertion of fluorescent bulbs, X-ray equipment, data processing systems and SCR controls. ...
P84025
... Wheelock products must be used within their published specifications and must be PROPERLY specified, applied, installed, operated, maintained and operationally tested in accordance with these instructions at the time of installation and at least twice a year or more often and in accordance with loca ...
... Wheelock products must be used within their published specifications and must be PROPERLY specified, applied, installed, operated, maintained and operationally tested in accordance with these instructions at the time of installation and at least twice a year or more often and in accordance with loca ...
Modeling and Simulation of Static VAR Compensator Controller for
... The Static VAR Compensator (SVC) is today considered a very mature technology. It has been used for reactive power compensation since the 1970s [13, 29, 30]. There are multiple applications within power systems, e.g. to increase power transfers across limited interfaces, to dampen power oscillations ...
... The Static VAR Compensator (SVC) is today considered a very mature technology. It has been used for reactive power compensation since the 1970s [13, 29, 30]. There are multiple applications within power systems, e.g. to increase power transfers across limited interfaces, to dampen power oscillations ...
Document
... The voltage reference circuit consisting of R32, R33, VR10 and zener diode ZD1 [3]. The highly stable reference voltage 2.7 volts is derived from the resistor R32 and diode DZ1. R32 and ZD1 connected in series across the 6 volts supply. The resistor R33 and variable resistor VR10 is connected in par ...
... The voltage reference circuit consisting of R32, R33, VR10 and zener diode ZD1 [3]. The highly stable reference voltage 2.7 volts is derived from the resistor R32 and diode DZ1. R32 and ZD1 connected in series across the 6 volts supply. The resistor R33 and variable resistor VR10 is connected in par ...
CHT-MOON PRELIMINARY DATASHEET High
... The CHT-MOON is a dual, high-voltage Nchannel MOSFET in a very dense CSOIC16 SMD package. It is designed to achieve high performance in an extremely wide temperature range: typical operation temperature goes from 55°C to 225°C while keeping leakage currents low. It has been optimized for use in low ...
... The CHT-MOON is a dual, high-voltage Nchannel MOSFET in a very dense CSOIC16 SMD package. It is designed to achieve high performance in an extremely wide temperature range: typical operation temperature goes from 55°C to 225°C while keeping leakage currents low. It has been optimized for use in low ...
RA33H1516M1
... and were not specifically designed for use in other applications. In particular, while these products are highly reliable for their designed purpose, they are not manufactured under a quality assurance testing protocol that is sufficient to guarantee the level of reliability typically deemed necessa ...
... and were not specifically designed for use in other applications. In particular, while these products are highly reliable for their designed purpose, they are not manufactured under a quality assurance testing protocol that is sufficient to guarantee the level of reliability typically deemed necessa ...
1.2 Peak Detection System
... lower access method, are non-volatile and often removable off-line and have a much lower cost per bit. Mass storage devices may be classified into magnetic hard disks and floppy disks, several types of magnetic type drives, and various kinds of optical disk drives. In additional, there are the many ...
... lower access method, are non-volatile and often removable off-line and have a much lower cost per bit. Mass storage devices may be classified into magnetic hard disks and floppy disks, several types of magnetic type drives, and various kinds of optical disk drives. In additional, there are the many ...
MAX15031 80V, 300mW Boost Converter and Current Monitor for APD Bias Applications
... The MAX15031 consists of a constant-frequency pulsewidth modulating (PWM) step-up DC-DC converter with an internal switch and a high-side current monitor with high-speed adjustable current limiting. This device can generate output voltages up to 76V and provides current monitoring up to 4mA (up to 3 ...
... The MAX15031 consists of a constant-frequency pulsewidth modulating (PWM) step-up DC-DC converter with an internal switch and a high-side current monitor with high-speed adjustable current limiting. This device can generate output voltages up to 76V and provides current monitoring up to 4mA (up to 3 ...
30A - SynQor
... transformer’s output is accomplished with synchronous rectifiers. These devices, which are MOSFETs with a very low onstate resistance, dissipate far less energy than Schottky diodes. This is the primary reason that the PowerQor converter has such high efficiency, even at very low output voltages and ...
... transformer’s output is accomplished with synchronous rectifiers. These devices, which are MOSFETs with a very low onstate resistance, dissipate far less energy than Schottky diodes. This is the primary reason that the PowerQor converter has such high efficiency, even at very low output voltages and ...
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.