Validation of the Measurement Characteristics in an Instrument for
... network is constantly growing. The descriptions of the methods and systems for electrical power quality assessment, in their various aspects, can be found, e.g., in [22–27]. In [28–30], issues concerning the configuration and operation of the measurement track of the “estimator/analyzer” (E/A) instr ...
... network is constantly growing. The descriptions of the methods and systems for electrical power quality assessment, in their various aspects, can be found, e.g., in [22–27]. In [28–30], issues concerning the configuration and operation of the measurement track of the “estimator/analyzer” (E/A) instr ...
Chapter 8 Electrical Power 8.1 Introduction
... power, and protection to provide maximum continuity of service for operation of the essential switchyard equipment during both normal and abnormal conditions. There are two independent sets of 125 V DC batteries, chargers, and DC panels for the switchyard relay and control systems DC supply requirem ...
... power, and protection to provide maximum continuity of service for operation of the essential switchyard equipment during both normal and abnormal conditions. There are two independent sets of 125 V DC batteries, chargers, and DC panels for the switchyard relay and control systems DC supply requirem ...
L9177 Datasheet - STMicroelectronics
... L9177 is a device realized in ST BCD proprietary technology, able to provide the full set of power supplies and signal preprocessing peripherals needed to control a 2 Cylinder internal combustion Engine for Low End Application (e.g. small motorcycle, K-car, nautical engines, etc.). L9177 integrates ...
... L9177 is a device realized in ST BCD proprietary technology, able to provide the full set of power supplies and signal preprocessing peripherals needed to control a 2 Cylinder internal combustion Engine for Low End Application (e.g. small motorcycle, K-car, nautical engines, etc.). L9177 integrates ...
Appendix A Decibels
... in dB will be different; the three values will only be the same when the circuit resistance is constant. For example, if the input and output load resistances of an amplifier are equal, then its power gain, voltage gain., and current gain (calculated in dB) will be the same. If the resistances are d ...
... in dB will be different; the three values will only be the same when the circuit resistance is constant. For example, if the input and output load resistances of an amplifier are equal, then its power gain, voltage gain., and current gain (calculated in dB) will be the same. If the resistances are d ...
IGBT Module for Advanced NPC Topology
... DC voltage = 660 V and output current = 145 A. As a result, the A-NPC inverter exhibited the smallest power dissipation and was 23% lower than the conventional 2-level inverter and 9% lower than the NPC inverter. Additionally, A-NPC has the highest power conversion efficiency of 97.73%, which was an ...
... DC voltage = 660 V and output current = 145 A. As a result, the A-NPC inverter exhibited the smallest power dissipation and was 23% lower than the conventional 2-level inverter and 9% lower than the NPC inverter. Additionally, A-NPC has the highest power conversion efficiency of 97.73%, which was an ...
MAX5090A/B/C 2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters General Description
... The MAX5090A/B/C easy-to-use, high-efficiency, highvoltage step-down DC-DC converters operate from an input voltage up to 76V, and consume only 310µA quiescent current at no load. This pulse-width-modulated (PWM) converter operates at a fixed 127kHz switching frequency at heavy loads, and automatica ...
... The MAX5090A/B/C easy-to-use, high-efficiency, highvoltage step-down DC-DC converters operate from an input voltage up to 76V, and consume only 310µA quiescent current at no load. This pulse-width-modulated (PWM) converter operates at a fixed 127kHz switching frequency at heavy loads, and automatica ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... The increasing efforts on pushing to high power density and high efficiency DC/DC converter have lead us to develop converters capable of operating at higher switching frequency with high efficiency. For this reason, resonant converters have made lots of attentions due to high efficiency, high switc ...
... The increasing efforts on pushing to high power density and high efficiency DC/DC converter have lead us to develop converters capable of operating at higher switching frequency with high efficiency. For this reason, resonant converters have made lots of attentions due to high efficiency, high switc ...
DS90C241 5-35MHz DC-Balanced 24-Bit FPD
... The Deserializer PLL lock time (tDRDL) may vary depending on input data patterns and the number of transitions within the pattern. RxIN_TOL is a measure of how much phase noise (jitter) the deserializer can tolerate in the incoming data stream before bit errors occur. It is a measurement in referenc ...
... The Deserializer PLL lock time (tDRDL) may vary depending on input data patterns and the number of transitions within the pattern. RxIN_TOL is a measure of how much phase noise (jitter) the deserializer can tolerate in the incoming data stream before bit errors occur. It is a measurement in referenc ...
S4K UPS Guide Specifications - Sola/Hevi-Duty
... battery is constant current charged to restore capacity, then shall be constant voltage charged to maintain the battery in a fully charged state. Recharge time for the internal UPS batteries shall be five (5) hours maximum to 95% capacity (full load discharge rate). There is DC overvoltage protectio ...
... battery is constant current charged to restore capacity, then shall be constant voltage charged to maintain the battery in a fully charged state. Recharge time for the internal UPS batteries shall be five (5) hours maximum to 95% capacity (full load discharge rate). There is DC overvoltage protectio ...
Freescale`s 50 V RF LDMOS: An Ideal RF Power Technology for ISM
... not shown in this figure) are also employed to reduce feedback capacitance between the drain and gate, and to control surface electric fields to allow for improved device performance without sacrificing breakdown voltage or HCI margin. Another Freescale innovation pioneered in the cellular infrastru ...
... not shown in this figure) are also employed to reduce feedback capacitance between the drain and gate, and to control surface electric fields to allow for improved device performance without sacrificing breakdown voltage or HCI margin. Another Freescale innovation pioneered in the cellular infrastru ...
Power Consumption
... In digital, there is a cost associated to save machine states in appropriate registers the states. In software, disk drive or non volatile memories are used to make a snapshot of the system. This potential source of subtle bugs cannot be underestimated. Systems may be in standby mode all around the ...
... In digital, there is a cost associated to save machine states in appropriate registers the states. In software, disk drive or non volatile memories are used to make a snapshot of the system. This potential source of subtle bugs cannot be underestimated. Systems may be in standby mode all around the ...
BD35395FJ-M
... parasitic diode or transistor. For example (refer to figure below): When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode. When GND > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of ...
... parasitic diode or transistor. For example (refer to figure below): When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode. When GND > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of ...
MAX3228E/MAX3228AE/MAX3229E/MAX3229AE ±15kV ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP and WLP
... ±15kV ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP and WLP The MAX3228E/AE and MAX3229E/AE are +2.5V to +5.5V powered EIA/TIA-232 and V.28/V.24 communications interfaces with low power requirements, high datarate capabilities, and enhanced electrostatic discharge (ESD) protection, in a c ...
... ±15kV ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP and WLP The MAX3228E/AE and MAX3229E/AE are +2.5V to +5.5V powered EIA/TIA-232 and V.28/V.24 communications interfaces with low power requirements, high datarate capabilities, and enhanced electrostatic discharge (ESD) protection, in a c ...
Datasheet
... V+ and then use part of that stored charge to generate V-. Because of inherent losses, the magnitude of V- will be smaller than V+ on these older designs. Under lightly loaded conditions the intelligent pump oscillator maximizes efficiency by running only as needed to maintain V+ and V-. Since inter ...
... V+ and then use part of that stored charge to generate V-. Because of inherent losses, the magnitude of V- will be smaller than V+ on these older designs. Under lightly loaded conditions the intelligent pump oscillator maximizes efficiency by running only as needed to maintain V+ and V-. Since inter ...
PDF
... increases reversely too, but the magnitude may be smaller than the leakage current. These negative current is used to achieve ZVS of main switch Sw. The absorbed leakage energy in Mode 3 is transferred to the output side and the leakage inductor again. The auxiliary switch ON time determines the cir ...
... increases reversely too, but the magnitude may be smaller than the leakage current. These negative current is used to achieve ZVS of main switch Sw. The absorbed leakage energy in Mode 3 is transferred to the output side and the leakage inductor again. The auxiliary switch ON time determines the cir ...
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.