Not Recommended For New Designs
... To ensure reliable operation, the input capacitors must be selected to have a current rating higher than ICIN-RMS at the worst operating conditions. Ceramic capacitors are preferred for input capacitors because of their low ESR and high current rating. Depending on the application circuits, other lo ...
... To ensure reliable operation, the input capacitors must be selected to have a current rating higher than ICIN-RMS at the worst operating conditions. Ceramic capacitors are preferred for input capacitors because of their low ESR and high current rating. Depending on the application circuits, other lo ...
lab11 - University of Puget Sound
... LCR meter, electronic balance and a dissectible electromagnetic motor. Introduction You have learned in class that magnetic forces are only felt by moving charges (the Lorentz force law). But everybody knows that magnets exert forces on other magnets, even when they are sitting still and uncharged. ...
... LCR meter, electronic balance and a dissectible electromagnetic motor. Introduction You have learned in class that magnetic forces are only felt by moving charges (the Lorentz force law). But everybody knows that magnets exert forces on other magnets, even when they are sitting still and uncharged. ...
Testing and Demonstration Results for the
... SuperPower, Inc. is developing a 138kV SFCL with RUL. Although RUL is very challenging, it is desirable from the utility’s perspective since the device can recover to the low impedance state without having to be taken off-line. Since the SFCL device does not switch in and out of the circuit there wi ...
... SuperPower, Inc. is developing a 138kV SFCL with RUL. Although RUL is very challenging, it is desirable from the utility’s perspective since the device can recover to the low impedance state without having to be taken off-line. Since the SFCL device does not switch in and out of the circuit there wi ...
AP1513
... AP1513 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. A ...
... AP1513 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. A ...
Aalborg Universitet Trintis, Ionut; Douglass, Philip; Maheshwari, Ramkrishan; Munk-Nielsen, Stig
... or increase the power density, to develop novel control architectures and to maintain or decrease the overall cost. This new concept of heat pump will have a variable speed drive which uses power electronics to adjust the speed of the compressor to match the heat demand. The power electrics of the v ...
... or increase the power density, to develop novel control architectures and to maintain or decrease the overall cost. This new concept of heat pump will have a variable speed drive which uses power electronics to adjust the speed of the compressor to match the heat demand. The power electrics of the v ...
Autotransformers - ELHAND Transformatory
... autotransformer voltage may be freely lowered for the time of the motor start-up, so that the current taken from the network does not exceed the set value. If necessary, the start-up autotransformers are manufactured with several branches. ...
... autotransformer voltage may be freely lowered for the time of the motor start-up, so that the current taken from the network does not exceed the set value. If necessary, the start-up autotransformers are manufactured with several branches. ...
A lamp rated at 12 V 60 W is connected to the secondary coil
... It is possible that the values chosen for three of the distractors in this question, on transformer efficiency, were so obviously wrong that there was no need for the students to perform any calculation. However, only 54% gave the correct response when the question was pre-tested in 2009. The 2014 A ...
... It is possible that the values chosen for three of the distractors in this question, on transformer efficiency, were so obviously wrong that there was no need for the students to perform any calculation. However, only 54% gave the correct response when the question was pre-tested in 2009. The 2014 A ...
EET307: TRIAC+ lamp dimmer application msw
... During the conduction time a certain quantity of charges is injected into the structure. During turn-off of one zone an excess charge remains, particularly in the region of the gate, and this can in certain cases result in the firing of the other conduction zone at the moment when the supply voltage ...
... During the conduction time a certain quantity of charges is injected into the structure. During turn-off of one zone an excess charge remains, particularly in the region of the gate, and this can in certain cases result in the firing of the other conduction zone at the moment when the supply voltage ...
FJ24994999
... safety considerations and better performance. So the isolated DC-DC converter is proposed. There are various types of isolated DC-DC converters, among them proper converter is selected based on the voltage level and power. Several power converter topologies are proposed in high power applications li ...
... safety considerations and better performance. So the isolated DC-DC converter is proposed. There are various types of isolated DC-DC converters, among them proper converter is selected based on the voltage level and power. Several power converter topologies are proposed in high power applications li ...
TRIAC Specifications And Recommendations (Turn
... their gates connected together. This results in a bidirectional electronic switch which can conduct current in either direction when it is triggered (turned on) and thus doesn't have any polarity. It can be triggered by either a positive or a negative voltage being applied to its gate ...
... their gates connected together. This results in a bidirectional electronic switch which can conduct current in either direction when it is triggered (turned on) and thus doesn't have any polarity. It can be triggered by either a positive or a negative voltage being applied to its gate ...
TPS61085T 数据资料 dataSheet 下载
... threshold value set by the internal GM amplifier, the power transistor is turned off, the energy stored into the inductor is then released and the current flows through the Schottky diode towards the output of the boost converter. The off-time is fixed for a certain VIN and VS, and therefore maintai ...
... threshold value set by the internal GM amplifier, the power transistor is turned off, the energy stored into the inductor is then released and the current flows through the Schottky diode towards the output of the boost converter. The off-time is fixed for a certain VIN and VS, and therefore maintai ...
MAX1573 White LED 1x/1.5x Charge Pump in UCSP and Thin QFN General Description
... no LED brightness change during the 1x/1.5x switchover, which guarantees no flicker on the display. The switchover scheme has low hysteresis, minimizing operation in the less-efficient 1.5x mode. The 1x mode produces almost no ripple, while the 1.5x mode regulates the output voltage by controlling t ...
... no LED brightness change during the 1x/1.5x switchover, which guarantees no flicker on the display. The switchover scheme has low hysteresis, minimizing operation in the less-efficient 1.5x mode. The 1x mode produces almost no ripple, while the 1.5x mode regulates the output voltage by controlling t ...
- aes journals
... and those with high switching frequency. Conventional uncontrolled rectifiers and line commutated phase controlled rectifiers so far have dominated the AC to DC power conversion. Such converters have inherent drawbacks such as harmonics in the input current and output voltage; low input power factor ...
... and those with high switching frequency. Conventional uncontrolled rectifiers and line commutated phase controlled rectifiers so far have dominated the AC to DC power conversion. Such converters have inherent drawbacks such as harmonics in the input current and output voltage; low input power factor ...
AN-107 - IXYS Integrated Circuits Division
... problems. Cardiac signals for adults are approximately 1mV in magnitude while for a fetus can be as low as 50µV. Since the heart signals are low in amplitude, noise such as residual electrode voltages and 50/60Hz power line pickup can easily mask the signal. Therefore, it is important to design an i ...
... problems. Cardiac signals for adults are approximately 1mV in magnitude while for a fetus can be as low as 50µV. Since the heart signals are low in amplitude, noise such as residual electrode voltages and 50/60Hz power line pickup can easily mask the signal. Therefore, it is important to design an i ...
TPS61040-Q1 数据资料 dataSheet 下载
... requirements. A lower current limit supports applications requiring lower output power and allows the use of an inductor with a lower current rating and a smaller form factor. A lower current limit usually has a lower output voltage ripple as well. ...
... requirements. A lower current limit supports applications requiring lower output power and allows the use of an inductor with a lower current rating and a smaller form factor. A lower current limit usually has a lower output voltage ripple as well. ...
LP2901-Q1 数据资料 dataSheet 下载
... All pins of any unused comparators should be grounded. The bias network of the LP2901 establishes a drain current that is independent of the magnitude of the power-supply voltage over the range of 2 V to 30 V. It usually is necessary to use a bypass capacitor across the power-supply line. The differ ...
... All pins of any unused comparators should be grounded. The bias network of the LP2901 establishes a drain current that is independent of the magnitude of the power-supply voltage over the range of 2 V to 30 V. It usually is necessary to use a bypass capacitor across the power-supply line. The differ ...
SA571 AN - Experimentalists Anonymous
... A low level trim resistor from CRECT to VCC of about 3M provides matching of the Bell low-level tracking curve, and the 2µF value of CRECT provides the proper attack and release times. A 16k resistor from the summing node to ground biases the output to 7VDC. ...
... A low level trim resistor from CRECT to VCC of about 3M provides matching of the Bell low-level tracking curve, and the 2µF value of CRECT provides the proper attack and release times. A 16k resistor from the summing node to ground biases the output to 7VDC. ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.