Comparison of the AC UPS and the DC UPS solutions for critical loads
... Category 4 units are normally small external units. They may easily be replaced with standard switch mode converters which are readily available. The investigations at Netpower Labs show that almost all PCs, displays and workstations with 230 VAC rated power supplies, both laptops and ATX form facto ...
... Category 4 units are normally small external units. They may easily be replaced with standard switch mode converters which are readily available. The investigations at Netpower Labs show that almost all PCs, displays and workstations with 230 VAC rated power supplies, both laptops and ATX form facto ...
Chapter 3 VOLTAGE CONTROL
... It is necessary to provide constancy of the alternator terminal voltage during normal small and slow changes in the load. For this purpose the alternators are provided with Automatic Voltage Regulator (AVR). The exciter is the main component in the AVR loop. It delivers DC power to the alternator fi ...
... It is necessary to provide constancy of the alternator terminal voltage during normal small and slow changes in the load. For this purpose the alternators are provided with Automatic Voltage Regulator (AVR). The exciter is the main component in the AVR loop. It delivers DC power to the alternator fi ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... Fig 7: Basic circuit for over/under voltage protection ...
... Fig 7: Basic circuit for over/under voltage protection ...
DATA SHEET BLV45/12 VHF power transistor August 1986
... Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the ...
... Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the ...
Chapter 8: Fast Electronics and Transient Behavior on TEM... 8.1 Propagation and reflection of transient signals on TEM transmission lines
... Thevenin impedance Zo; this yields i(t) = 2u(t - D/c)/Zo for t < 3D/c. Therefore v-1(t, D) = ΓDv+1(t, D) = -u(t - D/c), so v+2(t, 0) = ΓSv-1(t, 0) = u(t - 2D/c). At z = D this second step increases the Thevenin voltage by 2u(t - 3D/c) and increases the current by 2u(t - 3D/c)/Zo, where Zo = 1 ohm. T ...
... Thevenin impedance Zo; this yields i(t) = 2u(t - D/c)/Zo for t < 3D/c. Therefore v-1(t, D) = ΓDv+1(t, D) = -u(t - D/c), so v+2(t, 0) = ΓSv-1(t, 0) = u(t - 2D/c). At z = D this second step increases the Thevenin voltage by 2u(t - 3D/c) and increases the current by 2u(t - 3D/c)/Zo, where Zo = 1 ohm. T ...
Calibration: meeting the challenges of high-frequency
... frequency is 50 to 60 Hz, an electronic compensated current transformer (ECCT) is used to measure the current, but if the frequency is higher current shunts have to be used for the other frequencies. Yokogawa has built its own current shunts to measure from 1 mA up to 10 A at up to 100 kHz with a ma ...
... frequency is 50 to 60 Hz, an electronic compensated current transformer (ECCT) is used to measure the current, but if the frequency is higher current shunts have to be used for the other frequencies. Yokogawa has built its own current shunts to measure from 1 mA up to 10 A at up to 100 kHz with a ma ...
Powerpoint
... the voltage drop across a 10 k resistor in series with a 6 V battery and a 5 k resistor (neglect the internal resistance of the battery). What is the percent error caused by the nonzero resistance of the voltmeter? We already calculated the actual voltage drop (3 slides back). Vab = IR 0.4 10 ...
... the voltage drop across a 10 k resistor in series with a 6 V battery and a 5 k resistor (neglect the internal resistance of the battery). What is the percent error caused by the nonzero resistance of the voltmeter? We already calculated the actual voltage drop (3 slides back). Vab = IR 0.4 10 ...
FAN23SV06 / FAN23SV06P TinyBuck™ 6 A Integrated Synchronous Buck Regulator FAN 2
... Programmable Soft-Start Low Shutdown Current Adjustable Sourcing Current Limit Internal Boot Diode ...
... Programmable Soft-Start Low Shutdown Current Adjustable Sourcing Current Limit Internal Boot Diode ...
MAX14606/MAX14607 Overvoltage Protectors with Reverse Bias
... Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametr ...
... Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametr ...
MAX8678 White LED Charge Pump with 1.1W Audio Amplifier General Description
... The MAX8678 integrates a charge pump for white lightemitting diodes (LEDs) with an audio loudspeaker amplifier. The high-efficiency, adaptive charge pump drives up to four LEDs with constant current for uniform brightness. The LED current is adjustable from 0.1mA/LED to 24mA/LED in 31 pseudo-logarit ...
... The MAX8678 integrates a charge pump for white lightemitting diodes (LEDs) with an audio loudspeaker amplifier. The high-efficiency, adaptive charge pump drives up to four LEDs with constant current for uniform brightness. The LED current is adjustable from 0.1mA/LED to 24mA/LED in 31 pseudo-logarit ...
PowerPoint
... the voltage drop across a 10 k resistor in series with a 6 V battery and a 5 k resistor (neglect the internal resistance of the battery). What is the percent error caused by the nonzero resistance of the voltmeter? We already calculated the actual voltage drop (3 slides back). Vab = IR 0.4 10 ...
... the voltage drop across a 10 k resistor in series with a 6 V battery and a 5 k resistor (neglect the internal resistance of the battery). What is the percent error caused by the nonzero resistance of the voltmeter? We already calculated the actual voltage drop (3 slides back). Vab = IR 0.4 10 ...
PowerLogic® ION6200 Factory Assembled
... Main meter and feeders will be the meter. (wired to terminal blocks) wired for Inputs/Outputs. 16-Digital Each meter RS-485 port will be Inputs, 3-Relay Outs, KYZ Out, 3daisy chained together. (5 OUT for 5 Digital Outputs, 1-Analog Output, 1terminal blocks total). Analog Input wired to terminal bl ...
... Main meter and feeders will be the meter. (wired to terminal blocks) wired for Inputs/Outputs. 16-Digital Each meter RS-485 port will be Inputs, 3-Relay Outs, KYZ Out, 3daisy chained together. (5 OUT for 5 Digital Outputs, 1-Analog Output, 1terminal blocks total). Analog Input wired to terminal bl ...
2SA1952
... 3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating char ...
... 3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating char ...
BD8153EFV
... However, 10 µs is the rough calculation value of the DC/DC response speed. Please set the capacitance considering the sufficient margin so that these two values are within the standard value range. (3) Selecting the Input Capacitor Since the peak current flows between the input and output at the DC/ ...
... However, 10 µs is the rough calculation value of the DC/DC response speed. Please set the capacitance considering the sufficient margin so that these two values are within the standard value range. (3) Selecting the Input Capacitor Since the peak current flows between the input and output at the DC/ ...
Low-Dropout Regulator with modest ripple and rugged performance
... Supplying and conditioning power are the most fundamental functions of an electrical system. A loading application cannot sustain itself without energy, and cannot fully perform its functions without a stable supply Transformers, generators, batteries, and other off-line supplies incur substantial v ...
... Supplying and conditioning power are the most fundamental functions of an electrical system. A loading application cannot sustain itself without energy, and cannot fully perform its functions without a stable supply Transformers, generators, batteries, and other off-line supplies incur substantial v ...
Feedback
... Amplifiers can be classified in one of four ways according to their input and output parameters: ...
... Amplifiers can be classified in one of four ways according to their input and output parameters: ...
RSU002P03
... otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. ...
... otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. ...
Power electronics
Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)