Control techniques for three-phase four
... generation units in parallel with the grid or other sources [2]. They can not only feed power into the main grid, but also can perform as power quality conditioners at their grid-connected point such as Active Power Filters (APFs), Dynamic Voltage Restorers (DVRs) and Unified Power Quality Conditione ...
... generation units in parallel with the grid or other sources [2]. They can not only feed power into the main grid, but also can perform as power quality conditioners at their grid-connected point such as Active Power Filters (APFs), Dynamic Voltage Restorers (DVRs) and Unified Power Quality Conditione ...
MAX8744/MAX8745 High-Efficiency, Quad-Output, Main Power- Supply Controllers for Notebook Computers General Description
... The MAX8744/MAX8745 are dual step-down, switchmode, power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages ...
... The MAX8744/MAX8745 are dual step-down, switchmode, power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages ...
CBC early test report - Mark Raymond
... on I2C register setting. VPC and VPLUS are implemented by mirroring a current into a resistor, and the voltage range covered is consistent with what is expected from simulation. VPAFB is not a simple voltage setting, but the voltage across a gate-drain connected NMOS transistor which biases the feed ...
... on I2C register setting. VPC and VPLUS are implemented by mirroring a current into a resistor, and the voltage range covered is consistent with what is expected from simulation. VPAFB is not a simple voltage setting, but the voltage across a gate-drain connected NMOS transistor which biases the feed ...
ULTRAGAIN PRO-8 DIGITAL ADA8000
... The device should be situated so that its location or position does not interfere with its proper ventilation. For example, the device should not be placed on a bed, sofa, rug, or similar surface that may block the ventilation openings, or used in a built-in installation, such as a bookcase or cabin ...
... The device should be situated so that its location or position does not interfere with its proper ventilation. For example, the device should not be placed on a bed, sofa, rug, or similar surface that may block the ventilation openings, or used in a built-in installation, such as a bookcase or cabin ...
Radial Chapter - Massachusetts Distributed Generation Collaborative
... those requirements within the time allocated for Supplemental Review (maximum 10 hours of engineering time). If after these reviews, the Company still cannot determine the requirements, the Company will document the reasons why and will meet with the Customer to determine a new schedule to their mu ...
... those requirements within the time allocated for Supplemental Review (maximum 10 hours of engineering time). If after these reviews, the Company still cannot determine the requirements, the Company will document the reasons why and will meet with the Customer to determine a new schedule to their mu ...
ADA4857-1
... section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ...
... section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ...
IF 1711 Revision 2
... cover screws. All components in the fixture are prewired so only line in, neutral, and ground need to be connected in the fixture to the terminals per the wiring diagrams using methods that comply with all applicable codes. Terminate the equipment grounding conductor (green) first, the common (white ...
... cover screws. All components in the fixture are prewired so only line in, neutral, and ground need to be connected in the fixture to the terminals per the wiring diagrams using methods that comply with all applicable codes. Terminate the equipment grounding conductor (green) first, the common (white ...
An introduction to LLC resonant half
... mandatory, concerning an efficient use of energy on the other hand, are pushing power designers to find more and more efficient AC-DC conversion systems. This has revamped and broadened the interest in resonant conversion. Generally speaking, resonant converters are switching converters that include ...
... mandatory, concerning an efficient use of energy on the other hand, are pushing power designers to find more and more efficient AC-DC conversion systems. This has revamped and broadened the interest in resonant conversion. Generally speaking, resonant converters are switching converters that include ...
Solid State Relays Common Precautions
... commonly malfunction or fail. Short-circuit failures represent the main failure mode and can result in an inability to shut OFF the load. Therefore, for fail-safe operation of control circuits that use SSRs, do not use circuits that shut OFF the load power supply only with an SSR, but rather also us ...
... commonly malfunction or fail. Short-circuit failures represent the main failure mode and can result in an inability to shut OFF the load. Therefore, for fail-safe operation of control circuits that use SSRs, do not use circuits that shut OFF the load power supply only with an SSR, but rather also us ...
Thermoelectric Microconverter for Energy Harvesting Systems
... HNO3:HCl (d), and the photoresist is removed. The n-type film is then deposited by coevaporation, followed by a 100-nm nickel layer (e). The photoresist is applied and patterned by photolithography for n-type element definition (f)–(g). Nickel is etched in a chromium etchant (Transene 1020), the n-typ ...
... HNO3:HCl (d), and the photoresist is removed. The n-type film is then deposited by coevaporation, followed by a 100-nm nickel layer (e). The photoresist is applied and patterned by photolithography for n-type element definition (f)–(g). Nickel is etched in a chromium etchant (Transene 1020), the n-typ ...
Variable Frequency Drive Field Installation
... Use Copper Conductors Only. Failure to use copper conductors may result in equipment damage. The Static Pressure Transducer (SPT) is field installed external to the main electrical panel and wired back to the VFD. 1. Mount the transducer in a vertical position, making sure that the pneumatic tube c ...
... Use Copper Conductors Only. Failure to use copper conductors may result in equipment damage. The Static Pressure Transducer (SPT) is field installed external to the main electrical panel and wired back to the VFD. 1. Mount the transducer in a vertical position, making sure that the pneumatic tube c ...
Ohm`s law for a wire in contact with a thermal reservoir
... through the duration of the experiment. The insulated wire tails were extended out of the water so that no current could run through the water itself. Because the water kept the wire coils at a much lower temperature, it was possible to collect current data up to the limit of the ammeter 共2 A兲 witho ...
... through the duration of the experiment. The insulated wire tails were extended out of the water so that no current could run through the water itself. Because the water kept the wire coils at a much lower temperature, it was possible to collect current data up to the limit of the ammeter 共2 A兲 witho ...
Keysight Technologies U1240 Series Handheld Digital Multimeters
... 3. 1000 µA to 1000 mA ranges (connection with mA terminal) overload protection by 10 x 35 mm, 440 mA / 1000 V, 10 kA minimum fast-acting fuse. 4. 10 A ranges (connection with A terminal) overload protection by 10 x 38 mm, 11 A / 1000 V, 20 kA minimum fast-acting fuse. 5. Ensure good ventilatio ...
... 3. 1000 µA to 1000 mA ranges (connection with mA terminal) overload protection by 10 x 35 mm, 440 mA / 1000 V, 10 kA minimum fast-acting fuse. 4. 10 A ranges (connection with A terminal) overload protection by 10 x 38 mm, 11 A / 1000 V, 20 kA minimum fast-acting fuse. 5. Ensure good ventilatio ...
A Review of ESD Stress Models
... of the discharge is very short - usually less than one nanosecond. The peak current can reach several tens of amperes. Many test methods have been tested to reproduce the real-world CDM event and provide a suitable test method that duplicates the types of failure that have been observed in CDM cause ...
... of the discharge is very short - usually less than one nanosecond. The peak current can reach several tens of amperes. Many test methods have been tested to reproduce the real-world CDM event and provide a suitable test method that duplicates the types of failure that have been observed in CDM cause ...
DS1990R Serial Number iButton General Description Features
... fixed RPUP value. Maximum allowable pullup resistance is a function of the number of 1-Wire devices in the system and 1-Wire recovery times. The specified value here applies to systems with only one device and with the minimum 1-Wire recovery times. For more heavily loaded systems, an active pullup ...
... fixed RPUP value. Maximum allowable pullup resistance is a function of the number of 1-Wire devices in the system and 1-Wire recovery times. The specified value here applies to systems with only one device and with the minimum 1-Wire recovery times. For more heavily loaded systems, an active pullup ...
103_unit_2
... a ± 3, ± 6, ± 9, or ± 12 superscript value, the shorthand substitution can be made. The number 39 x103 can be made into 39k by substituting k for x103. Look at the second number in Figure 24. Convert that number into engineering notation (shorthand format) using two possible formats, and in addit ...
... a ± 3, ± 6, ± 9, or ± 12 superscript value, the shorthand substitution can be made. The number 39 x103 can be made into 39k by substituting k for x103. Look at the second number in Figure 24. Convert that number into engineering notation (shorthand format) using two possible formats, and in addit ...
Design and Implement Harmonics Injection Source for Voltage
... 60Hz). [2] In power system, the waveform is expected as perfectly sinusoidal wave at rated voltage and one specific system frequency (50Hz or 60Hz). However, different kinds of power electronic equipment and sources, which built in the power system, cause the ‘pollution’ to the network [3]. As the h ...
... 60Hz). [2] In power system, the waveform is expected as perfectly sinusoidal wave at rated voltage and one specific system frequency (50Hz or 60Hz). However, different kinds of power electronic equipment and sources, which built in the power system, cause the ‘pollution’ to the network [3]. As the h ...
Application Notes
... The response time of a photodiode is defined as the time it takes for light generated carriers within the body of the diode to arrive at and cross the P-N junction. When the diode is illuminated, photons of light penetrate into the silicon and are absorbed generating electron-hole pairs. The average ...
... The response time of a photodiode is defined as the time it takes for light generated carriers within the body of the diode to arrive at and cross the P-N junction. When the diode is illuminated, photons of light penetrate into the silicon and are absorbed generating electron-hole pairs. The average ...
GE Control Catalog - Section 3: Lighting Contactors
... 1. Coil operation and control circuit at same or different voltages 2. Allows longer control wiring runs 3. Microprocessor validates control signal before operation —will not respond to momentary voltage spikes or noise —operation command has built in delay (0.4 sec) to avoid multiple short-term com ...
... 1. Coil operation and control circuit at same or different voltages 2. Allows longer control wiring runs 3. Microprocessor validates control signal before operation —will not respond to momentary voltage spikes or noise —operation command has built in delay (0.4 sec) to avoid multiple short-term com ...
Troubleshooting Fluorescent Lamp Ballasts
... If abnormal ambient conditions cause the ballast to overheat, the thermal protection device’s switch disconnects the ballast from the line. Once cooled, the ballast is reconnected and restarts the lamps. ...
... If abnormal ambient conditions cause the ballast to overheat, the thermal protection device’s switch disconnects the ballast from the line. Once cooled, the ballast is reconnected and restarts the lamps. ...
Surge protector
A surge protector (or surge suppressor) is an appliance/device designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threshold. This article primarily discusses specifications and components relevant to the type of protector that diverts (shorts) a voltage spike to ground; however, there is some coverage of other methods.The terms surge protection device (SPD), or transient voltage surge suppressor (TVSS), are used to describe electrical devices typically installed in power distribution panels, process control systems, communications systems, and other heavy-duty industrial systems, for the purpose of protecting against electrical surges and spikes, including those caused by lightning. Scaled-down versions of these devices are sometimes installed in residential service entrance electrical panels, to protect equipment in a household from similar hazards.Many power strips have basic surge protection built in; these are typically clearly labeled as such. However, power strips that do not provide surge protection are sometimes erroneously referred to as ""surge protectors"".