Fault Management Circuit
... and Q1 turned off. On system start-up, the circuit still has no effect. The PRM starts before the VTM, but the RC time constant is long enough to keep the voltage on C1 too low to turn on Q2 before Q1 turns on; otherwise Q1 would turn on, bring ENABLE low and shut down the PRM again. When the VTM de ...
... and Q1 turned off. On system start-up, the circuit still has no effect. The PRM starts before the VTM, but the RC time constant is long enough to keep the voltage on C1 too low to turn on Q2 before Q1 turns on; otherwise Q1 would turn on, bring ENABLE low and shut down the PRM again. When the VTM de ...
Guardian Doors SD60 NBS - Guardian Industrial Doors
... The system must be proven to fail safe to the operational position on total loss of primary and auxiliary power. Under normal operating conditions the curtains would be held in the retracted position via the motors operating at low voltage. The manufacturer must be able to confirm that the motor win ...
... The system must be proven to fail safe to the operational position on total loss of primary and auxiliary power. Under normal operating conditions the curtains would be held in the retracted position via the motors operating at low voltage. The manufacturer must be able to confirm that the motor win ...
Appendix B: Electric Power System Basics - MIT Energy Initiative
... technology. However, dc can be advantageous when energy has to be transmitted over long distances for reasons discussed later. Dc also is used to connect ac systems that operate at different frequencies (as in Japan) or systems with identical frequencies that are not synchronized (as between interco ...
... technology. However, dc can be advantageous when energy has to be transmitted over long distances for reasons discussed later. Dc also is used to connect ac systems that operate at different frequencies (as in Japan) or systems with identical frequencies that are not synchronized (as between interco ...
TVSS Series STABILINE Transient Voltage Surge Suppressors ®
... TVSS300 (300,000 amps) ............................................................... 8 TVSS250 (250,000 amps) ............................................................... 9 TVSS200 (200,000 amps) ............................................................. 10 TVSS150 (150,000 amps) ........... ...
... TVSS300 (300,000 amps) ............................................................... 8 TVSS250 (250,000 amps) ............................................................... 9 TVSS200 (200,000 amps) ............................................................. 10 TVSS150 (150,000 amps) ........... ...
TRMS three- and single phase digital wattmeters
... heating resistors or lighting systems which, when started up, cause a considerable rush of current. Although they last only a short time, these currents can trigger the safety devices or even damage an installation. To counter this, the PX 120 and PX 110 are provided with the INRUSH function, which ...
... heating resistors or lighting systems which, when started up, cause a considerable rush of current. Although they last only a short time, these currents can trigger the safety devices or even damage an installation. To counter this, the PX 120 and PX 110 are provided with the INRUSH function, which ...
Mathematical Basis of Sliding Mode Control of an Uninterruptible
... feeding nonlinear loads (particularly rectifier loads). 2) The voltage dip and the recovery time due to step load change must be kept as small as possible, that is, fast dynamic response. 3) The steady-state error between the sinusoidal reference and the load regulation must be zero. To achieve thes ...
... feeding nonlinear loads (particularly rectifier loads). 2) The voltage dip and the recovery time due to step load change must be kept as small as possible, that is, fast dynamic response. 3) The steady-state error between the sinusoidal reference and the load regulation must be zero. To achieve thes ...
A Transient-Enhanced Low-Quiescent Current Low
... prevent an accidental turn off or resetting of the portable device. These four major performance requirements of the LDO, including low dropout voltage, high output current, low no-load quiescent current, and small output transient undershoots and overshoots are, however, difficult to achieve simult ...
... prevent an accidental turn off or resetting of the portable device. These four major performance requirements of the LDO, including low dropout voltage, high output current, low no-load quiescent current, and small output transient undershoots and overshoots are, however, difficult to achieve simult ...
MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package General Description
... range, with a typical current consumption of only 7.5µA. It is particularly well suited for portable applications where minimizing battery cost and maximizing useful battery life are crucial. The MAX6613 provides an analog voltage output proportional to temperature. Accuracy is ±4.0°C (max) over a r ...
... range, with a typical current consumption of only 7.5µA. It is particularly well suited for portable applications where minimizing battery cost and maximizing useful battery life are crucial. The MAX6613 provides an analog voltage output proportional to temperature. Accuracy is ±4.0°C (max) over a r ...
June 2006 High Speed Low Power RS485 Transceivers with
... frequency spectrums operating at 250kbps. SLO mode significantly reduces the high frequency harmonics. The LTC2859 and LTC2861 drivers feature current limiting that protects them from faults such as shorting the outputs to the power supply or ground. Short circuit current is limited to below the ±25 ...
... frequency spectrums operating at 250kbps. SLO mode significantly reduces the high frequency harmonics. The LTC2859 and LTC2861 drivers feature current limiting that protects them from faults such as shorting the outputs to the power supply or ground. Short circuit current is limited to below the ±25 ...
Module 28: Hydrogen Production by Natural Gas Assisted Steam
... minimize the overvoltage so that the electrolyzer can operate as efficiently as possible. The hydrogen reaction rate is directly proportional to the current, since for each hydrogen molecule that reacts, two electrons are formed. For operating voltages (Eop) 0 ≤ Eop ≤ EOCV, hydrogen is produced with ...
... minimize the overvoltage so that the electrolyzer can operate as efficiently as possible. The hydrogen reaction rate is directly proportional to the current, since for each hydrogen molecule that reacts, two electrons are formed. For operating voltages (Eop) 0 ≤ Eop ≤ EOCV, hydrogen is produced with ...
2. Equipment - OPS Schneider Electric
... They also shall be able to be locked out separately by a padlock. 2.3.2.3 Racking in and racking out operations shall be carried out only with the door closed and, for a circuit breaker, when the circuit breaker operating auxiliaries are connected. It shall only be possible to open the door when the ...
... They also shall be able to be locked out separately by a padlock. 2.3.2.3 Racking in and racking out operations shall be carried out only with the door closed and, for a circuit breaker, when the circuit breaker operating auxiliaries are connected. It shall only be possible to open the door when the ...
EMI - Renesas e
... π - type R-C filter is located between step-down circuit and core Uses parasitic capacitances of step-down transistors and core and parasitic resistance of internal power supply lines ...
... π - type R-C filter is located between step-down circuit and core Uses parasitic capacitances of step-down transistors and core and parasitic resistance of internal power supply lines ...
- Majlesi Journal of Electrical Engineering
... can be seen that this technique performs well even for different value of load capacitors. The amplifier achieves a GBW of 149,150 and 151 MHz with a phase margin of 50○, 53○ and 53.1○ for CL=100pF, 500pF and 1nF, respectively. The variation in output impedance versus frequency is plotted as Fig. 9. ...
... can be seen that this technique performs well even for different value of load capacitors. The amplifier achieves a GBW of 149,150 and 151 MHz with a phase margin of 50○, 53○ and 53.1○ for CL=100pF, 500pF and 1nF, respectively. The variation in output impedance versus frequency is plotted as Fig. 9. ...
Arithmetic Logic Units
... Cn=4 is carry-out bit, meaningful only for arithmetic ops. (Ignore it for logic ops.) A=B is comparison bit, meaningful only when performing “A MINUS B” operation. (Ignore it for all other ops.) P and G are carry-look-ahead bits for high-speed arithmetic, when 74181 is used in conjunction with 74182 ...
... Cn=4 is carry-out bit, meaningful only for arithmetic ops. (Ignore it for logic ops.) A=B is comparison bit, meaningful only when performing “A MINUS B” operation. (Ignore it for all other ops.) P and G are carry-look-ahead bits for high-speed arithmetic, when 74181 is used in conjunction with 74182 ...
Texas Instruments BQ24155RGYT datasheet: pdf
... charge parameters can be programmed through an I2C interface. The bq24155 integrates a synchronous PWM controller, power FETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package. The bq24155 charges the battery in three phases: cond ...
... charge parameters can be programmed through an I2C interface. The bq24155 integrates a synchronous PWM controller, power FETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package. The bq24155 charges the battery in three phases: cond ...
Buck converter
A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.