section 16920-1 - OPS Schneider Electric
... The BCPM shall include both current and voltage alarms The BCPM shall have setpoint driven alarming capability Alarm setpoints are determined by the user and may be modified at any time Alarms include time delays that are set by the user and may be modified at any time The BCPM shall have alarms for ...
... The BCPM shall include both current and voltage alarms The BCPM shall have setpoint driven alarming capability Alarm setpoints are determined by the user and may be modified at any time Alarms include time delays that are set by the user and may be modified at any time The BCPM shall have alarms for ...
DOE Fundamentals Handbook Electrical Science Volume 3 of 4
... When a voltage is produced by an AC generator, the resulting current varies in step with the voltage. As the generator coil rotates 360°, the output voltage goes through one complete cycle. In one cycle, the voltage increases from zero to Emax in one direction, decreases to zero, increases to Emax i ...
... When a voltage is produced by an AC generator, the resulting current varies in step with the voltage. As the generator coil rotates 360°, the output voltage goes through one complete cycle. In one cycle, the voltage increases from zero to Emax in one direction, decreases to zero, increases to Emax i ...
Features •
... The Atmel AT27C2048 is a low-power, high-performance 2,097,152-bit, one-time programmable, read-only memory (OTP EPROM) organized as 128K by 16 bits. It requires a single 5V power supply in normal read mode operation. Any word can be accessed in less than 55 ns, eliminating the need for speed-reduci ...
... The Atmel AT27C2048 is a low-power, high-performance 2,097,152-bit, one-time programmable, read-only memory (OTP EPROM) organized as 128K by 16 bits. It requires a single 5V power supply in normal read mode operation. Any word can be accessed in less than 55 ns, eliminating the need for speed-reduci ...
Capacitance and Dissipation Factor Measurement of Chip
... The MLCC capacitors have excellent features such as small size, high reliability, low impedance and no-polarity, etc., but on the other hand, they have demerits such as capacitance change with temperature or voltage change. In the following sections, measurements of 1206 type 10µF X7R-characteristic ...
... The MLCC capacitors have excellent features such as small size, high reliability, low impedance and no-polarity, etc., but on the other hand, they have demerits such as capacitance change with temperature or voltage change. In the following sections, measurements of 1206 type 10µF X7R-characteristic ...
Chapter 22 Current Electricity
... A circuit includes a charge pump, which increases the potential energy of the charges flowing from A to B, and a device that reduces the potential energy of the charges flowing from B to A. The potential energy lost by the charges, qV, moving through the device is usually converted into some other f ...
... A circuit includes a charge pump, which increases the potential energy of the charges flowing from A to B, and a device that reduces the potential energy of the charges flowing from B to A. The potential energy lost by the charges, qV, moving through the device is usually converted into some other f ...
AD5700-1BCPZ-RL7 Datasheet
... The AD5700/AD5700-1 are single-chip solutions, designed and specified to operate as a HART® FSK half-duplex modem, complying with the HART physical layer requirements. The AD5700/AD5700-1 integrate all of the necessary filtering, signal detection, modulating, demodulating and signal generation funct ...
... The AD5700/AD5700-1 are single-chip solutions, designed and specified to operate as a HART® FSK half-duplex modem, complying with the HART physical layer requirements. The AD5700/AD5700-1 integrate all of the necessary filtering, signal detection, modulating, demodulating and signal generation funct ...
DC MOTORS AND GENERATORS
... If there are 464 armature conductors, then the number of turns is one-half of that amount; every two conductors constitute one turn. The machine has 4 poles; thus, armature turns per pole (armature conductors/2)/number of poles (464/2)/4 58. 2. Calculate the Current per Armature Path For a lap ...
... If there are 464 armature conductors, then the number of turns is one-half of that amount; every two conductors constitute one turn. The machine has 4 poles; thus, armature turns per pole (armature conductors/2)/number of poles (464/2)/4 58. 2. Calculate the Current per Armature Path For a lap ...
... gh components (mg and mh). Additionally, this transformation normalizes the reference vector to fit into a three-unit-per-side hexagon. Table 3.2 shows the equivalent components in the first sextant (m1 and m2) that are used for calculation of duty cycles. The theoretical maximum amplitude of the no ...
1507/1503 Insulation Testers
... and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in Fluke's opinion, ha ...
... and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in Fluke's opinion, ha ...
LM4950 7.5W Mono-BTL or 3.1W Stereo Audio
... Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4950 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal ...
... Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4950 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal ...
phase detector
... • Phase-locked loops are used • as FM demodulators, • in carrier recovery circuits, and • as frequency synthesizers for modulation and demodulation. • Phase-locked loops have very good frequency accuracy and phase noise characteristics, but suffer from the fact that settling times (between changes ...
... • Phase-locked loops are used • as FM demodulators, • in carrier recovery circuits, and • as frequency synthesizers for modulation and demodulation. • Phase-locked loops have very good frequency accuracy and phase noise characteristics, but suffer from the fact that settling times (between changes ...
File
... the energy loss, laminated cores are used. Laminated cores are thin sheets of metal separated by an insulating material. This increases the resistance and hence reduces the strength of eddy currents. It must be noted that eddy currents can only minimized but never completely eliminated. APPLICATIONS ...
... the energy loss, laminated cores are used. Laminated cores are thin sheets of metal separated by an insulating material. This increases the resistance and hence reduces the strength of eddy currents. It must be noted that eddy currents can only minimized but never completely eliminated. APPLICATIONS ...
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.