J.M. Rivas, J. Shafran, R.S. Wahby, and D.J. Perreault, New Architectures for Radio-Frequency dc-dc Power Conversion, IEEE Transactions on Power Electronics , Vol. 21, No. 2, March 2006, pp. 380-393.
... have been achieved both through new devices and materials better suited to high-frequency operation (e.g., power metal oxide semiconductor field effect transistors (MOSFETs) and new ferrite magnetic materials) and through circuit and component designs that reduce losses associated with high-frequenc ...
... have been achieved both through new devices and materials better suited to high-frequency operation (e.g., power metal oxide semiconductor field effect transistors (MOSFETs) and new ferrite magnetic materials) and through circuit and component designs that reduce losses associated with high-frequenc ...
IRF520
... Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PD Dissipation Derating Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single Pulse Avalanche Ene ...
... Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PD Dissipation Derating Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single Pulse Avalanche Ene ...
SP485R 数据资料DataSheet下载
... contains a half-duplex driver and receiver with tri-state control. However, the SP485R is intended for increased connections on a single bus compared to the orignal RS-485 specification. ...
... contains a half-duplex driver and receiver with tri-state control. However, the SP485R is intended for increased connections on a single bus compared to the orignal RS-485 specification. ...
Document
... uLi, i = 1, 2, 3, while its amplitude equals exactly one-third of the amplitudes of uLi, this waveform contains exactly all triplen of the harmonic components of uLi. Because of ua = uLi - unp, there are no triplen harmonics left in the phase voltage. This is also true for the general case of balanc ...
... uLi, i = 1, 2, 3, while its amplitude equals exactly one-third of the amplitudes of uLi, this waveform contains exactly all triplen of the harmonic components of uLi. Because of ua = uLi - unp, there are no triplen harmonics left in the phase voltage. This is also true for the general case of balanc ...
Mipco™ Connections for Refrigerated Containers No One Does It
... current circuit breaker to allow for future upgrades. 2.5 Grounding – The grounding of the device shall be accomplished through a separate ground (earth) that will “make first”, “break last”. Plug ground pin will activate interlock mechanism. The ground pole shall be bonded to a UL recognized grou ...
... current circuit breaker to allow for future upgrades. 2.5 Grounding – The grounding of the device shall be accomplished through a separate ground (earth) that will “make first”, “break last”. Plug ground pin will activate interlock mechanism. The ground pole shall be bonded to a UL recognized grou ...
HMC578LC3B Datasheet
... The circuit board used in the final application should be generated with proper RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via ...
... The circuit board used in the final application should be generated with proper RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via ...
Optimal Efficiency Controller of AC Drive System
... B- Improvement of power supply parameters. C- Utilizing a suitable optimal control technique. Motor operation under rated conditions is highly efficient [5], however, in many applications, when induction motor works at variable speed it has more losses and less efficiency, so it operates far from th ...
... B- Improvement of power supply parameters. C- Utilizing a suitable optimal control technique. Motor operation under rated conditions is highly efficient [5], however, in many applications, when induction motor works at variable speed it has more losses and less efficiency, so it operates far from th ...
MAX9205/MAX9207 10-Bit Bus LVDS Serializers General Description Features
... The MAX9205/MAX9207 transmit serial data at speeds up to 400Mbps and 660Mbps, respectively, over PCB traces or twisted-pair cables. Since the clock is recovered from the serial data stream, clock-to-data and data-to-data skew that would be present with a parallel bus are eliminated. The serializers ...
... The MAX9205/MAX9207 transmit serial data at speeds up to 400Mbps and 660Mbps, respectively, over PCB traces or twisted-pair cables. Since the clock is recovered from the serial data stream, clock-to-data and data-to-data skew that would be present with a parallel bus are eliminated. The serializers ...
SP-35XMV DC Ammeter for Battery Powered Systems 3 1/2 Digit 0.48” LCD
... Kelvin connected shunts are recommended. An internal header configures the meter for HI Side or LO Side Shunt circuits. Pin 2 - Input LO: For DC current measurement with an external shunt, the less positive end of the shunt is connected to this pin. 50mV/100mV shunts may be used. For maximum accurac ...
... Kelvin connected shunts are recommended. An internal header configures the meter for HI Side or LO Side Shunt circuits. Pin 2 - Input LO: For DC current measurement with an external shunt, the less positive end of the shunt is connected to this pin. 50mV/100mV shunts may be used. For maximum accurac ...
MAX3030E–MAX3033E ±15kV ESD-Protected, 3.3V Quad RS-422 Transmitters General Description
... When circuit boards are plugged into a “hot” backplane, there can be disturbances to the differential signal levels that could be detected by receivers connected to the transmission line. This erroneous data could cause data errors to an RS-422 system. To avoid this, the MAX3030E–MAX3033E have hot-s ...
... When circuit boards are plugged into a “hot” backplane, there can be disturbances to the differential signal levels that could be detected by receivers connected to the transmission line. This erroneous data could cause data errors to an RS-422 system. To avoid this, the MAX3030E–MAX3033E have hot-s ...
Transformer Failure Due to Circuit-Breaker
... due to primary switching of vacuum breakers. Table I details a history of transformers related to primary switching of vacuum breakers occurring within the past three years. In Case 1, in a hydro dam, the transformer was “value engineered” with a 13.8-kV primary-winding BIL of 50 kV. The BIL should ...
... due to primary switching of vacuum breakers. Table I details a history of transformers related to primary switching of vacuum breakers occurring within the past three years. In Case 1, in a hydro dam, the transformer was “value engineered” with a 13.8-kV primary-winding BIL of 50 kV. The BIL should ...
MAX2150 Wideband I/Q Modulator with Sigma-Delta Fractional-N Synthesizer General Description
... Wideband I/Q Modulator with Sigma-Delta Fractional-N Synthesizer The MAX2150 is a complete wideband direct upconversion quadrature modulator IC incorporating a 28-bit sigma-delta fractional-N synthesizer. The device is targeted for applications in the 700MHz to 2300MHz frequency range. The super-hig ...
... Wideband I/Q Modulator with Sigma-Delta Fractional-N Synthesizer The MAX2150 is a complete wideband direct upconversion quadrature modulator IC incorporating a 28-bit sigma-delta fractional-N synthesizer. The device is targeted for applications in the 700MHz to 2300MHz frequency range. The super-hig ...
Sample Questions - C&G 2382 17th Edition paper C
... c electronic monitoring equipment that resets d electronic monitoring equipment that restarts the motor. 8 Oc4 An undervoltage device has operated and restoring the supply may cause danger. The reclosure of this device should be a automatic when under the supervision of a competent person b manually ...
... c electronic monitoring equipment that resets d electronic monitoring equipment that restarts the motor. 8 Oc4 An undervoltage device has operated and restoring the supply may cause danger. The reclosure of this device should be a automatic when under the supervision of a competent person b manually ...
MAX9169/MAX9170 4-Port LVDS and LVTTL-to-LVDS Repeaters General Description Features
... undriven terminated input conditions can occur when a cable is disconnected or cut, or when an LVDS driver output is in high impedance. A shorted input can occur because of cable failure. ...
... undriven terminated input conditions can occur when a cable is disconnected or cut, or when an LVDS driver output is in high impedance. A shorted input can occur because of cable failure. ...
REF191 数据手册DataSheet 下载
... The REF19x series precision band gap voltage references use a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy. The REF19x series is made up of micropower, low drop ...
... The REF19x series precision band gap voltage references use a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy. The REF19x series is made up of micropower, low drop ...
LT5511 - High Signal Level Upconverting Mixer.
... Oscillator Signal. They can also be driven single-ended by connecting one to an RF ground through a DC blocking capacitor. For single-ended drive, use LO+ for the signal input, as this results in less interference from unwanted coupling of the LO signal to other pins. These pins are internally biase ...
... Oscillator Signal. They can also be driven single-ended by connecting one to an RF ground through a DC blocking capacitor. For single-ended drive, use LO+ for the signal input, as this results in less interference from unwanted coupling of the LO signal to other pins. These pins are internally biase ...
ISSCC 2017 Digest of Technical Papers
... except for the input level shifters and the write driver PMOS, are kept completely in the VDDM domain. An important benefit of this scheme is the NMOS in the write driver is driven with a VDDM-domain signal, insuring sufficient overdrive to guarantee a timely write of the BL. When designs use multip ...
... except for the input level shifters and the write driver PMOS, are kept completely in the VDDM domain. An important benefit of this scheme is the NMOS in the write driver is driven with a VDDM-domain signal, insuring sufficient overdrive to guarantee a timely write of the BL. When designs use multip ...
Discrete Wavelet Transforms for Synchronization of Power
... a new switching strategy to be developed in order to reduce the harmonic content of the output voltage in a ac/dc converter maintaining unity power factor. A three-phase induction generator (IG) system for stand-alone power systems is controlled by means of one ac/dc plus one dc/ac converter and app ...
... a new switching strategy to be developed in order to reduce the harmonic content of the output voltage in a ac/dc converter maintaining unity power factor. A three-phase induction generator (IG) system for stand-alone power systems is controlled by means of one ac/dc plus one dc/ac converter and app ...
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.