Film Capacitors, Power Factor Correction, Power Quality Solutions
... quality problems and use energy more efficiently and reliably. Harmonic pollution is a growing problem with the increasing use of power electronics and non-linear loads (such as variable speed drives, UPS, computers, servers, TV sets, etc.). The presence of harmonics increases the RMS current in pow ...
... quality problems and use energy more efficiently and reliably. Harmonic pollution is a growing problem with the increasing use of power electronics and non-linear loads (such as variable speed drives, UPS, computers, servers, TV sets, etc.). The presence of harmonics increases the RMS current in pow ...
Aalborg Universitet Voltage Ride-Through Mode
... It is reported that the global installed photovoltaic (PV) capacity hit a new record by the beginning of 2013, being over 100 GW [1]. The development of single-phase PV systems connected to the public grid has been booming progressively in recent years as well, mainly due to the attractive feed-in t ...
... It is reported that the global installed photovoltaic (PV) capacity hit a new record by the beginning of 2013, being over 100 GW [1]. The development of single-phase PV systems connected to the public grid has been booming progressively in recent years as well, mainly due to the attractive feed-in t ...
Analog Devices Welcomes Hittite Microwave Corporation
... integrated Voltage Controlled Oscillator (VCO). The input reference frequency range is DC to 350 MHz while the advanced delta-sigma modulator design in the fractional synthesizer allows both ultra-fine step sizes and very low ...
... integrated Voltage Controlled Oscillator (VCO). The input reference frequency range is DC to 350 MHz while the advanced delta-sigma modulator design in the fractional synthesizer allows both ultra-fine step sizes and very low ...
Thevenin_Norton
... can be used to simplify a circuit to one that contains three components: a power source, equivalent resistor, and load. ...
... can be used to simplify a circuit to one that contains three components: a power source, equivalent resistor, and load. ...
Y. Han, O. Leitermann, D. Jackson, J.M. Rivas, and D.J. Perreault, “Resistance Compression Networks for Resonant Power Conversion,” 2005 IEEE Power Electronics Specialists Conference , June 2005, pp. 1282-1292.
... to the effective impedance of the load. For example, class E inverters only operate under soft switched conditions over about a factor of two in load resistance. While acceptable in communications applications (in which the load resistance is relatively constant), this is problematic for many dc/dc ...
... to the effective impedance of the load. For example, class E inverters only operate under soft switched conditions over about a factor of two in load resistance. While acceptable in communications applications (in which the load resistance is relatively constant), this is problematic for many dc/dc ...
frequency controlled ac motor drive - Allen
... position results mainly from certain excellent features of the squirrel cage motor such as: • Uncomplicated, rugged construction. For the user this means low initial cost and high reliability. • Good efficiency coupled with low maintenance costs resulting in low overall operating costs. Squirrel cag ...
... position results mainly from certain excellent features of the squirrel cage motor such as: • Uncomplicated, rugged construction. For the user this means low initial cost and high reliability. • Good efficiency coupled with low maintenance costs resulting in low overall operating costs. Squirrel cag ...
ADCMP582 数据手册DataSheet 下载
... Inverting Output. Q is logic low if the analog voltage at the noninverting input, VP, is greater than the analog voltage at the inverting input, VN, provided that the comparator is in compare mode. See the LE/LE descriptions (Pin 6 to Pin 7) for more information. Noninverting Output. Q is logic high ...
... Inverting Output. Q is logic low if the analog voltage at the noninverting input, VP, is greater than the analog voltage at the inverting input, VN, provided that the comparator is in compare mode. See the LE/LE descriptions (Pin 6 to Pin 7) for more information. Noninverting Output. Q is logic high ...
AN-4160 FTCO3V455A1 3-Phase Inverter Automotive Power Module Introduction www.fairchildsemi.com
... To switch each of the MOSFETs into ON state, a charge must be deposited onto the gate. A high-current gate driver IC should be used to drive the gates of the MOSFETs. The current value must be determined based on the desired turnon and turn-off times. A typical half-bridge gate driver IC contains a ...
... To switch each of the MOSFETs into ON state, a charge must be deposited onto the gate. A high-current gate driver IC should be used to drive the gates of the MOSFETs. The current value must be determined based on the desired turnon and turn-off times. A typical half-bridge gate driver IC contains a ...
Current Wrapup - Ms. Gamm
... C. Describe the change in the brightness, if any, of bulb A when bulb D is removed form its socket. Justify your answer. Bulb A becomes dimmer. The circuit becomes a series circuit. The resistance is greater so the current decreases. Light A receives less current and is less bright. All bulbs have t ...
... C. Describe the change in the brightness, if any, of bulb A when bulb D is removed form its socket. Justify your answer. Bulb A becomes dimmer. The circuit becomes a series circuit. The resistance is greater so the current decreases. Light A receives less current and is less bright. All bulbs have t ...
SN65LVDM1677 数据资料 dataSheet 下载
... its output logic state can be indeterminate when the differential input voltage is between –50 mV and 50 mV and within its recommended input common-mode voltage range. TI's LVDS receiver is different, however, in how it handles the open-input circuit situation. Open-circuit means that there is littl ...
... its output logic state can be indeterminate when the differential input voltage is between –50 mV and 50 mV and within its recommended input common-mode voltage range. TI's LVDS receiver is different, however, in how it handles the open-input circuit situation. Open-circuit means that there is littl ...
MAX6978 8-Port, 5.5V Constant-Current LED Driver with LED Fault Detection and Watchdog
... and clock input CLK. Input data appears at the output DOUT eight clock cycles later to allow cascading of multiple MAX6978s. The latch-enable input LE loads the 8 bits of shift-register data into an 8-bit output latch to set which LEDs are on and which are off. The outputenable input OE gates all ei ...
... and clock input CLK. Input data appears at the output DOUT eight clock cycles later to allow cascading of multiple MAX6978s. The latch-enable input LE loads the 8 bits of shift-register data into an 8-bit output latch to set which LEDs are on and which are off. The outputenable input OE gates all ei ...
FMS6303 Low-Cost, 3-Channel, Video Filter Driver for SD/ED/HD (1080i)/HD (1080P)
... The FMS6303 outputs are DC offset from the input by 150mV; therefore, VOUT = 2•VIN DC+150mV. This offset is required to obtain optimal performance from the output driver and is held at the minimum value to decrease the standing DC current into the load. Since the FMS6303 has a 2x (6dB) gain, the out ...
... The FMS6303 outputs are DC offset from the input by 150mV; therefore, VOUT = 2•VIN DC+150mV. This offset is required to obtain optimal performance from the output driver and is held at the minimum value to decrease the standing DC current into the load. Since the FMS6303 has a 2x (6dB) gain, the out ...
TR41.9.2-05-02-007 - Telecommunications Industry Association
... may be either two-wire or four-wire and is usually referred to by the type of signaling between locations (points). Thus, there are two-point and multipoint private lines. Twoway ringdown, or simply "ringdown," is one of the signaling methods used for such private lines. The signaling range can be e ...
... may be either two-wire or four-wire and is usually referred to by the type of signaling between locations (points). Thus, there are two-point and multipoint private lines. Twoway ringdown, or simply "ringdown," is one of the signaling methods used for such private lines. The signaling range can be e ...
A new Circuit for Low-Cost Electronic Ballast Passive Valley Fill with
... acceptable THD and low current-crest factor. The ballast will use Passive Valley Fill configuration to reduce costs compared to standard PFC. To overcome the disadvantage of the very high current crest factor, additional circuit has been used to modulate the Half Bridge frequency versus the bus volt ...
... acceptable THD and low current-crest factor. The ballast will use Passive Valley Fill configuration to reduce costs compared to standard PFC. To overcome the disadvantage of the very high current crest factor, additional circuit has been used to modulate the Half Bridge frequency versus the bus volt ...
SBO
... components with different pitches and different numbers of pins. The receptacle is mainly designed inside the PCB thickness to have a low profile connector. ...
... components with different pitches and different numbers of pins. The receptacle is mainly designed inside the PCB thickness to have a low profile connector. ...
Chapter 28 Direct Current Circuits 28.1 Electromotive “Force” (emf)
... Assuming the capacitor is initially uncharged, that the time constant is several seconds, and that the bulb lights when connected directly to the battery terminals, state what happens when the switch is closed. ...
... Assuming the capacitor is initially uncharged, that the time constant is several seconds, and that the bulb lights when connected directly to the battery terminals, state what happens when the switch is closed. ...
NRK16/A, NRK16-B/A, (NRK16-T../A, NRK14-T../A, NRK16
... The RSA controllers are microprocessor-based DDC controllers comprising a base unit and a plug-in application module. Each plug-in application module contains an EEPROM preprogrammed with a given application chosen from a wide range of heating, ventilation and air conditioning applications. The appl ...
... The RSA controllers are microprocessor-based DDC controllers comprising a base unit and a plug-in application module. Each plug-in application module contains an EEPROM preprogrammed with a given application chosen from a wide range of heating, ventilation and air conditioning applications. The appl ...
AP Physics - Electric Circuits, DC
... C. Describe the change in the brightness, if any, of bulb A when bulb D is removed form its socket. Justify your answer. Bulb A becomes dimmer. The circuit becomes a series circuit. The resistance is greater so the current decreases. Light A receives less current and is less bright. All bulbs have t ...
... C. Describe the change in the brightness, if any, of bulb A when bulb D is removed form its socket. Justify your answer. Bulb A becomes dimmer. The circuit becomes a series circuit. The resistance is greater so the current decreases. Light A receives less current and is less bright. All bulbs have t ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.