AUTOMATIC TRANSFER SWITCHES (ATS) IN CRITICAL
... which would otherwise cause loss of power to the load will be neutralized. The intent of providing an ATS in critical power circuits is to eliminate single failures that would cause loss of power to the load. Eliminating the potential for these two types of internal ATS failure-modes significantly r ...
... which would otherwise cause loss of power to the load will be neutralized. The intent of providing an ATS in critical power circuits is to eliminate single failures that would cause loss of power to the load. Eliminating the potential for these two types of internal ATS failure-modes significantly r ...
TECHNOLOGIEWACHT:
... long motor cable), the steep slopes of the PWM voltage pulses cause transmission line effects. These transmission line effects imply overvoltages appear at motor side. Due to these overvoltages, the life expectancy of the motor reduces. Using an output filter, these overvoltages will be limited or e ...
... long motor cable), the steep slopes of the PWM voltage pulses cause transmission line effects. These transmission line effects imply overvoltages appear at motor side. Due to these overvoltages, the life expectancy of the motor reduces. Using an output filter, these overvoltages will be limited or e ...
Academic paper: Implementation of Shunt and Series FACTS
... parameters of Unified Power Flow Controllers (UPFCs) to unify the power flow in electrical power systems. Shunt and Series FACTS devices are used for controlling the transmission voltage, power flow and reducing reactive losses and damping of power system oscillations for high power transfer levels. ...
... parameters of Unified Power Flow Controllers (UPFCs) to unify the power flow in electrical power systems. Shunt and Series FACTS devices are used for controlling the transmission voltage, power flow and reducing reactive losses and damping of power system oscillations for high power transfer levels. ...
Voltage measurements made easy
... To demonstrate the use of the MIN MAX function in detecting and measuring transients, consider the example shown in Figure one. The circuit is part of a control circuit that, among other things, controls some dc relays. The diode across the coils of the relays is used to short out any electrical ene ...
... To demonstrate the use of the MIN MAX function in detecting and measuring transients, consider the example shown in Figure one. The circuit is part of a control circuit that, among other things, controls some dc relays. The diode across the coils of the relays is used to short out any electrical ene ...
AP6714 1.8MHz SYNCHRONOUS BOOST CONVERTER Description
... Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use ...
... Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use ...
SE2425U 数据资料DataSheet下载
... The SE2425U provides a digital mode control input for boosting the linear performance for enhanced data rate applications. The SE2425U operates at 3.3 V DC with a peak efficiency of 43 % in basic rate and 21 % in enhanced rate mode. The internal bias management allows the part to only draw 28 mA in ...
... The SE2425U provides a digital mode control input for boosting the linear performance for enhanced data rate applications. The SE2425U operates at 3.3 V DC with a peak efficiency of 43 % in basic rate and 21 % in enhanced rate mode. The internal bias management allows the part to only draw 28 mA in ...
TS1003 - Silicon Labs
... The TS1003 is fully functional for an input signal from the negative supply (VSS or GND) to the positive supply (VDD). The input stage consists of two differential amplifiers, a p-channel CMOS stage and an n-channel CMOS stage that are active over different ranges of the input common mode voltage. T ...
... The TS1003 is fully functional for an input signal from the negative supply (VSS or GND) to the positive supply (VDD). The input stage consists of two differential amplifiers, a p-channel CMOS stage and an n-channel CMOS stage that are active over different ranges of the input common mode voltage. T ...
1-MHz 45-µA CMOS RAIL-TO-RAIL OPERATIONAL AMPLIFIER OPA2348-Q1 OPA4348-Q1 FEATURES
... Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absol ...
... Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absol ...
AN2321: Designing for Board Level Electromagnetic
... can be reduced by decreasing the common impedance. Unfortunately, source impedance coupling is inherent to the power supply and cannot be reduced. The same effect occurs in the return-to-ground conductor. Digital return currents that flow in one circuit create ground bounce in the other circuit’s re ...
... can be reduced by decreasing the common impedance. Unfortunately, source impedance coupling is inherent to the power supply and cannot be reduced. The same effect occurs in the return-to-ground conductor. Digital return currents that flow in one circuit create ground bounce in the other circuit’s re ...
Waveform display devices
... 1- A dead band signal: largest signal to which the recorder will not respond due to pen assembles mass (inertia). Sufficient preamplification of the signal is required 2- Overshooting and undershooting of the recorded trace. 3- undercritically damped reader will overshoot the correct point and ...
... 1- A dead band signal: largest signal to which the recorder will not respond due to pen assembles mass (inertia). Sufficient preamplification of the signal is required 2- Overshooting and undershooting of the recorded trace. 3- undercritically damped reader will overshoot the correct point and ...
HMC174MS8 / 174MS8E
... The HMC174MS8 & HMC174MS8E are low-cost SPDT switches in 8-lead MSOP packages for use in transmit-receive applications which require very low distortion at high signal power levels. The device can control signals from DC to 3 GHz and is especially suited for cellular/3G and WiMAX applications with o ...
... The HMC174MS8 & HMC174MS8E are low-cost SPDT switches in 8-lead MSOP packages for use in transmit-receive applications which require very low distortion at high signal power levels. The device can control signals from DC to 3 GHz and is especially suited for cellular/3G and WiMAX applications with o ...
MAX8662/MAX8663 Power-Management ICs for Single-Cell, Li+ Battery-Operated Devices General Description
... Time between rising edges on EN3 for PWM dimming to ...
... Time between rising edges on EN3 for PWM dimming to ...
HMC574MS8 - University of Toronto Physics
... 1. Set logic gate and switch Vdd = +3V to +5V and use HCT series logic to provide a TTL driver interface. 2. Control inputs A/B can be driven directly with CMOS logic (HC) with Vdd of +3 to +8 Volts applied to the CMOS logic gates and to pin 4 of the RF switch. 3. DC Blocking capacitors are required ...
... 1. Set logic gate and switch Vdd = +3V to +5V and use HCT series logic to provide a TTL driver interface. 2. Control inputs A/B can be driven directly with CMOS logic (HC) with Vdd of +3 to +8 Volts applied to the CMOS logic gates and to pin 4 of the RF switch. 3. DC Blocking capacitors are required ...
LX-E A.C. GENERATOR - Northern Lights Marine Generators
... abnormal sound during normal running and no overheating. Greasing is not necessary for generators using the double seal type ball bearings, but these will need to be replaced after every 10,000 hours of operation (see PARTS REPLACEMENT METHOD). INSULATION RESISTANCE MEASUREMENT If the generator has ...
... abnormal sound during normal running and no overheating. Greasing is not necessary for generators using the double seal type ball bearings, but these will need to be replaced after every 10,000 hours of operation (see PARTS REPLACEMENT METHOD). INSULATION RESISTANCE MEASUREMENT If the generator has ...
TVS Diode Array SP721 Lead-Free/Green Datasheet
... ESD and over-voltage protection to sensitive input circuits. The SP721 has 2 protection SCR/Diode device structures per input. There are a total of 6 available inputs that can be used to protect up to 6 external signal or bus lines. Overvoltage protection is from the IN (Pins 1 - 3 and Pins 5 - 7) t ...
... ESD and over-voltage protection to sensitive input circuits. The SP721 has 2 protection SCR/Diode device structures per input. There are a total of 6 available inputs that can be used to protect up to 6 external signal or bus lines. Overvoltage protection is from the IN (Pins 1 - 3 and Pins 5 - 7) t ...
ConstantVoltage, Constant-Current Controller with Primary
... Protection Functions Programmable Cable Compensation SOT23-6 Package ...
... Protection Functions Programmable Cable Compensation SOT23-6 Package ...
A New Three-Phase Three-Winding Transformer Electromagnetic
... source of the abrupt time which is based on the abrupt non-state variable’s value; this will result in numerical oscillation [1, 2]. Obviously this oscillation is unreasonable. There are always two ways to eliminate this numerical oscillation which are backward Euler method [3-5] and the damping tra ...
... source of the abrupt time which is based on the abrupt non-state variable’s value; this will result in numerical oscillation [1, 2]. Obviously this oscillation is unreasonable. There are always two ways to eliminate this numerical oscillation which are backward Euler method [3-5] and the damping tra ...
Model Number Structure Ordering Information
... Used for general mandatory action precautions for which there is no specified symbol. ...
... Used for general mandatory action precautions for which there is no specified symbol. ...
PS9308L, PS9308L2 Data Sheet Preliminary
... range of the recommended operating conditions, and be sure to thoroughly evaluate operation.) (3) Pin 2 (which is an NC*1 pin) can either be connected directly to the GND pin on the LED side or left open. Unconnected pins should not be used as a bypass for signals or for any other similar purpose be ...
... range of the recommended operating conditions, and be sure to thoroughly evaluate operation.) (3) Pin 2 (which is an NC*1 pin) can either be connected directly to the GND pin on the LED side or left open. Unconnected pins should not be used as a bypass for signals or for any other similar purpose be ...
Welding Machine - Ardin Caspain Industrial Development LLC
... • Ideally suitable for light, Medium and Heavy duty, all purpose industrial, structural welding applications both within shop floor and at project sites • These welding rectifiers can be also used for DC TIG welding applications by connecting suitable TIG control units (HF 2000 / 2000 AD / 3000 / 30 ...
... • Ideally suitable for light, Medium and Heavy duty, all purpose industrial, structural welding applications both within shop floor and at project sites • These welding rectifiers can be also used for DC TIG welding applications by connecting suitable TIG control units (HF 2000 / 2000 AD / 3000 / 30 ...
MAX8550A Integrated DDR Power-Supply Solution for General Description Features
... Overvoltage/Undervoltage-Protection Control Input. This four-level logic input enables or disables the overvoltage and/or undervoltage protection. The overvoltage limit is 116% of the nominal output voltage. The undervoltage limit is 70% of the nominal output voltage. Discharge mode is enabled when ...
... Overvoltage/Undervoltage-Protection Control Input. This four-level logic input enables or disables the overvoltage and/or undervoltage protection. The overvoltage limit is 116% of the nominal output voltage. The undervoltage limit is 70% of the nominal output voltage. Discharge mode is enabled when ...
Line Coding
... Bipolar Signalling is also called “alternate mark inversion” (AMI) uses three voltage levels (+V, 0, -V) to represent two binary symbols. Zeros, as in unipolar, are represented by the absence of a pulse and ones (or marks) are represented by alternating voltage levels of +V and –V. Alternating the m ...
... Bipolar Signalling is also called “alternate mark inversion” (AMI) uses three voltage levels (+V, 0, -V) to represent two binary symbols. Zeros, as in unipolar, are represented by the absence of a pulse and ones (or marks) are represented by alternating voltage levels of +V and –V. Alternating the m ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.