Chapter 9 – DC Motors and Generators
... Solution is to insert a starting resistor in series with the armature to limit the current flow until EA can build up to do the limiting. This starting resistor must be removed as speed builds up. See Figure 9-29 for a manual dc motor starter. ...
... Solution is to insert a starting resistor in series with the armature to limit the current flow until EA can build up to do the limiting. This starting resistor must be removed as speed builds up. See Figure 9-29 for a manual dc motor starter. ...
Pad-Mounted Single-Phase 32-Step Voltage Regulator with
... 4.3. Each regulator shall be provided with two laser-etched nameplates, one mounted on the control enclosure and the other mounted on the regulator tank. The nameplates shall have the manufacturer code and serial number bar-coded with "3 of 9" coding with a 0.25" minimum height. 4.4. The regulator s ...
... 4.3. Each regulator shall be provided with two laser-etched nameplates, one mounted on the control enclosure and the other mounted on the regulator tank. The nameplates shall have the manufacturer code and serial number bar-coded with "3 of 9" coding with a 0.25" minimum height. 4.4. The regulator s ...
User Manual - datakom.com.tr
... The GEN led will turn off if the genset phase voltage is outside the set limits. It will flash when the genset phase voltage is within the limits and the synchronization checking is disabled. It turns on steadily when the synchronization checking is enabled. Please check the PROGRAMMING section for ...
... The GEN led will turn off if the genset phase voltage is outside the set limits. It will flash when the genset phase voltage is within the limits and the synchronization checking is disabled. It turns on steadily when the synchronization checking is enabled. Please check the PROGRAMMING section for ...
Radical restructuring and revision of the IEC 6043
... The current series of international standards for low-voltage switchgear and controlgear assemblies, IEC 60439 [1], has evolved over more than two decades, but it does not cater for the manufacture of customised assemblies, where it is impracticable to perform type tests. There is also continuing co ...
... The current series of international standards for low-voltage switchgear and controlgear assemblies, IEC 60439 [1], has evolved over more than two decades, but it does not cater for the manufacture of customised assemblies, where it is impracticable to perform type tests. There is also continuing co ...
A CMOS nested-chopper instrumentation amplifier with 100
... modulated only once and appears at the chopping frequency and its odd harmonics. These frequency components need to be removed by a low-pass filter. Next to the frequency domain, the chopping principle can also be explained in the time-domain. is periodically inverted by the In that case, the input ...
... modulated only once and appears at the chopping frequency and its odd harmonics. These frequency components need to be removed by a low-pass filter. Next to the frequency domain, the chopping principle can also be explained in the time-domain. is periodically inverted by the In that case, the input ...
BDTIC www.BDTIC.com/infineon Industrial & Multimarket
... The LED drive short-circuits the status LED if the comparator detects “0”. A constant current sink in parallel with the LED reduces the operating current of the LED, and a voltage limiter ensures that the input circuit remains operational if the LED is interrupted, but the specified switching thresh ...
... The LED drive short-circuits the status LED if the comparator detects “0”. A constant current sink in parallel with the LED reduces the operating current of the LED, and a voltage limiter ensures that the input circuit remains operational if the LED is interrupted, but the specified switching thresh ...
Aalborg Universitet
... proportional-resonant (PR) regulators are required, which complicate the control system. Besides, much turning effort is needed to obtain system stability, which makes it hard to be implemented. In [4], the voltage and frequency from the droop controller are delivered to the frequency controller and ...
... proportional-resonant (PR) regulators are required, which complicate the control system. Besides, much turning effort is needed to obtain system stability, which makes it hard to be implemented. In [4], the voltage and frequency from the droop controller are delivered to the frequency controller and ...
Quantum Partition Noise of Photon-Created Electron
... The first step of our experiment is to determine the frequencies giving the highest coupling between the radio frequency and the sample. This is achieved by measuring a weak photocurrent which never exceeds 0.2 nA in the explored rf power range (the equivalent open circuit voltage is always lower th ...
... The first step of our experiment is to determine the frequencies giving the highest coupling between the radio frequency and the sample. This is achieved by measuring a weak photocurrent which never exceeds 0.2 nA in the explored rf power range (the equivalent open circuit voltage is always lower th ...
PAM8603E Description Features Applications Pin Assignments
... PSRR are as low as possible. Power supply decoupling affects low frequency on the power supply leads. For higher frey response optimum decoupling is achieved by using two capacitors of different types that target different types of noise frequency transients, spikes or digital hash on the line, a go ...
... PSRR are as low as possible. Power supply decoupling affects low frequency on the power supply leads. For higher frey response optimum decoupling is achieved by using two capacitors of different types that target different types of noise frequency transients, spikes or digital hash on the line, a go ...
DRV612 数据资料 dataSheet 下载
... The DRV612 is a DirectPath line-driver amplifier that requires adequate power-supply decoupling to ensure that the noise and total harmonic distortion (THD) are low. A good low equivalent-series-resistance (ESR) ceramic capacitor, typically 1 μF, placed as close as possible to the device VDD lead wo ...
... The DRV612 is a DirectPath line-driver amplifier that requires adequate power-supply decoupling to ensure that the noise and total harmonic distortion (THD) are low. A good low equivalent-series-resistance (ESR) ceramic capacitor, typically 1 μF, placed as close as possible to the device VDD lead wo ...
MAX5152/MAX5153 Low-Power, Dual, 13-Bit Voltage-Output DACs with Configurable Outputs _______________General Description
... DACs are easily configured with a 3-wire serial interface. These devices include a 16-bit data-in/data-out shift register, and each DAC has a double-buffered input comprised of an input register and a DAC register (see Functional Diagram). Both DACs use an inverted R-2R ladder network that produces ...
... DACs are easily configured with a 3-wire serial interface. These devices include a 16-bit data-in/data-out shift register, and each DAC has a double-buffered input comprised of an input register and a DAC register (see Functional Diagram). Both DACs use an inverted R-2R ladder network that produces ...
A Power Meter Reference Design Based on the
... from all subsequent measurements to correct for the offset error. The temperature coefficient is approximately 1°C/LSB. ...
... from all subsequent measurements to correct for the offset error. The temperature coefficient is approximately 1°C/LSB. ...
Control of Parallel Connected Three-Phase PWM Converters
... School of Electrical and Electronic Engineering, Newcastle University, Newcastle upon Tyne, UK ...
... School of Electrical and Electronic Engineering, Newcastle University, Newcastle upon Tyne, UK ...
LME49725 数据资料 dataSheet 下载
... high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49725 audio operational amplifiers deliver superior audio signal amplification f ...
... high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49725 audio operational amplifiers deliver superior audio signal amplification f ...
Evaluates: MAX14591 MAX14591 Evaluation Kit General Description Quick Start
... The MAX14591 EV kit is a fully assembled and tested circuit board that demonstrates the functionality of the MAX14591 high-speed, open-drain capable logic-level translator in both the 8-bump WLP and 8-pin TDFN packages. The EV kit features enables direct evaluation of the device by multiple jumper-s ...
... The MAX14591 EV kit is a fully assembled and tested circuit board that demonstrates the functionality of the MAX14591 high-speed, open-drain capable logic-level translator in both the 8-bump WLP and 8-pin TDFN packages. The EV kit features enables direct evaluation of the device by multiple jumper-s ...
Assessment of Fault Location in Power Distribution Networks
... relevant “time stamp”. Figure 2 is the scheme of the operating principle implemented by the EDB [13]. First, the input signal uVVT is low-pass filtered by the R1-C1 filter, which features a cut-off frequency of 1,600 Hz. This value allows the filter both to properly attenuate the transient affecting ...
... relevant “time stamp”. Figure 2 is the scheme of the operating principle implemented by the EDB [13]. First, the input signal uVVT is low-pass filtered by the R1-C1 filter, which features a cut-off frequency of 1,600 Hz. This value allows the filter both to properly attenuate the transient affecting ...
MAX3232E-Q1 数据资料 dataSheet 下载
... http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requ ...
... http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requ ...
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.