Analysis and Design of Power Electronic Circuits using Orcad (Prof
... Once the step 3) is completed the following window appears. Choose “Create a blank project” option ...
... Once the step 3) is completed the following window appears. Choose “Create a blank project” option ...
Unit-8Lecture 52 TESTING OF CABLES Cables are very important
... disturbance, and a current rise due to reflections from the ground end of the windings. When a fault occurs such as arcing between the turns or from turn to the ground, a train of high frequency pulses similar to that in the front of the impulse current wave are observed in the oscillogram and the w ...
... disturbance, and a current rise due to reflections from the ground end of the windings. When a fault occurs such as arcing between the turns or from turn to the ground, a train of high frequency pulses similar to that in the front of the impulse current wave are observed in the oscillogram and the w ...
Using the HP 34401A Digital Multimeter (DMM)
... If you have the probes connected for measuring currents and you try to measure the voltage of a low-impedance voltage source (such as a power supply), you will blow a fuse in the instrument. (The ammeter has a very low impedance, so the current through it will grow too large.) This fuse must be repl ...
... If you have the probes connected for measuring currents and you try to measure the voltage of a low-impedance voltage source (such as a power supply), you will blow a fuse in the instrument. (The ammeter has a very low impedance, so the current through it will grow too large.) This fuse must be repl ...
UC2874-2 数据资料 dataSheet 下载
... HDRIVE, LDRIVE: The outputs of the PWM are totem pole MOSFET gate drivers on the HDRIVE and LDRIVE pins. The outputs can sink approximately 1A and source 500mA. This characteristic optimizes the switching transitions by providing a controlled dV/dT at turn-on and a lower impedance at turn-off. These ...
... HDRIVE, LDRIVE: The outputs of the PWM are totem pole MOSFET gate drivers on the HDRIVE and LDRIVE pins. The outputs can sink approximately 1A and source 500mA. This characteristic optimizes the switching transitions by providing a controlled dV/dT at turn-on and a lower impedance at turn-off. These ...
Document
... In a similar way the mismatch between the reactive power injected and calculated values is given by The purpose of the load flow is to minimize the above two mismatches. However since the magnitudes of all the voltages and their angles are not known a priori, an iterative procedure must be used to ...
... In a similar way the mismatch between the reactive power injected and calculated values is given by The purpose of the load flow is to minimize the above two mismatches. However since the magnitudes of all the voltages and their angles are not known a priori, an iterative procedure must be used to ...
HX460 with External Pulse Width Modulated Drive
... Driving HX460 contactors with external PWM GIGAVAC offers the HX460 with a continuous duty coil. Customers that want to reduce overall power consumption can PWM the coil. This application note provides details on how to drive the contactor to insure that it can meet published ratings. ...
... Driving HX460 contactors with external PWM GIGAVAC offers the HX460 with a continuous duty coil. Customers that want to reduce overall power consumption can PWM the coil. This application note provides details on how to drive the contactor to insure that it can meet published ratings. ...
Features Physical Properties Electrical Properties at +150 °C
... engines and exhausts in smart cars. At low temperature, to -40°C, such end nodes may be deployed to monitor infrastructure such as pipelines or bridges. ...
... engines and exhausts in smart cars. At low temperature, to -40°C, such end nodes may be deployed to monitor infrastructure such as pipelines or bridges. ...
RT12-240V/2.4kW Rectifier Specification
... RT12-240V/2.4kW Rectifier Specification The RT12-240V/2.4kW is a switched mode rectifier (SMR) module that delivers up to 2.4kW of output power (and up to 11A output current) into a 240V nominal DC system. The RT12 suits AC supply voltages between 208 and 240VAC but will also operate at reduced powe ...
... RT12-240V/2.4kW Rectifier Specification The RT12-240V/2.4kW is a switched mode rectifier (SMR) module that delivers up to 2.4kW of output power (and up to 11A output current) into a 240V nominal DC system. The RT12 suits AC supply voltages between 208 and 240VAC but will also operate at reduced powe ...
VT 6030-120 - Ventex Tech
... 8. Allow adequate ventilation when mounting transformer in enclosed area. 9. When operating two or more power supplies in the same installation, be sure units are at least 12 inches apart. 10. Transformer is provided with GTO grommets where GTO leads exit the unit. It is recommended GTO sleeving ...
... 8. Allow adequate ventilation when mounting transformer in enclosed area. 9. When operating two or more power supplies in the same installation, be sure units are at least 12 inches apart. 10. Transformer is provided with GTO grommets where GTO leads exit the unit. It is recommended GTO sleeving ...
VIPer100 THE MOST ADVANCED MONLITHIC SOLUTION FOR
... components (COMP pin), offering a maximum of freedom for the users to adjust the regulation bandwidth with good repetitivity. c) Excellent good line regulation because of the current mode control topology. d) Better regulation point voltage because of the higher value of this voltage when compared w ...
... components (COMP pin), offering a maximum of freedom for the users to adjust the regulation bandwidth with good repetitivity. c) Excellent good line regulation because of the current mode control topology. d) Better regulation point voltage because of the higher value of this voltage when compared w ...
PC360.2 / PC650.2 PC400.4 / PC640.4 / PC1000.1 / PC740.5
... channels 1&2 to be identical to 3&4 or if you need low pass or band pass signal. Understand that this bypasses EVERYTHING so that the front channels are identical to the rear channels. Phase Switch – This switch changes the phase of the woofer from 0 to 180 degrees. Subsonic – The Subsonic Filter pr ...
... channels 1&2 to be identical to 3&4 or if you need low pass or band pass signal. Understand that this bypasses EVERYTHING so that the front channels are identical to the rear channels. Phase Switch – This switch changes the phase of the woofer from 0 to 180 degrees. Subsonic – The Subsonic Filter pr ...
7B40 数据手册DataSheet 下载
... rejection (CMR) of 110 dB @50/60 Hz and a normal mode rejection (NMR) of 100 dB @50/60 Hz are provided. Rated to operate with a nominal +24 VDC supply, Model 7B40 is mixand-match and hot-swappable with other 7B Series input modules, so it can be inserted or removed from any socket in the same backpl ...
... rejection (CMR) of 110 dB @50/60 Hz and a normal mode rejection (NMR) of 100 dB @50/60 Hz are provided. Rated to operate with a nominal +24 VDC supply, Model 7B40 is mixand-match and hot-swappable with other 7B Series input modules, so it can be inserted or removed from any socket in the same backpl ...
RF3928 280W GaN WIDEBAND PULSED POWER AMPLIFIER Features
... RF Power transistor performance capabilities are determined by the applied quiescent drain current. This drain current can be adjusted to trade off power, linearity, and efficiency characteristics of the device. The recommended quiescent drain current (IDQ) shown in the RF typical performance table ...
... RF Power transistor performance capabilities are determined by the applied quiescent drain current. This drain current can be adjusted to trade off power, linearity, and efficiency characteristics of the device. The recommended quiescent drain current (IDQ) shown in the RF typical performance table ...
Lab 2: Heart Rate Monitor
... which are disposable, if a subject sits for multiple tests). Another pointer is to build your instrumentation amplifier first with a low gain, so that you can verify its operation using the function generator (which can only put out a minimum voltage of 100 mV--- a lot bigger than an ECG signal), an ...
... which are disposable, if a subject sits for multiple tests). Another pointer is to build your instrumentation amplifier first with a low gain, so that you can verify its operation using the function generator (which can only put out a minimum voltage of 100 mV--- a lot bigger than an ECG signal), an ...
E951 POWER SUPPLY
... Case 2,3 power supply • Four series-parallel, 540 KVA power supplies rated at 3600 A, +/-150 V each, Total rating 7200A, +/-300V. • Thyristor-control six-pulse rectifiers, available at Brookhaven Labs from previous experiments. (Model Meeker #431, in parallel with # 433, and #429, in parallel with ...
... Case 2,3 power supply • Four series-parallel, 540 KVA power supplies rated at 3600 A, +/-150 V each, Total rating 7200A, +/-300V. • Thyristor-control six-pulse rectifiers, available at Brookhaven Labs from previous experiments. (Model Meeker #431, in parallel with # 433, and #429, in parallel with ...
Instructional Manual - FSU High Energy Physics
... Turn off the power, move the top cover of the instrument, place the FranckHertz tube in lamp socket, replace the top cover and turn on the power The indicator will flash. Preheat 3 minutes, before the experiment. Rotate “ 0 100V” adjust knob, and at mean time observe the variation of rheometer and ...
... Turn off the power, move the top cover of the instrument, place the FranckHertz tube in lamp socket, replace the top cover and turn on the power The indicator will flash. Preheat 3 minutes, before the experiment. Rotate “ 0 100V” adjust knob, and at mean time observe the variation of rheometer and ...
FSL146MRBN Green-Mode Fairchild Power Switch (FPS™)
... as the load current exceeding its normal level due to an unexpected abnormal event. In this situation, the protection circuit should trigger to protect the SMPS. However, in normal operation, the overload protection circuit can be triggered during load transition. To avoid this undesired operation, ...
... as the load current exceeding its normal level due to an unexpected abnormal event. In this situation, the protection circuit should trigger to protect the SMPS. However, in normal operation, the overload protection circuit can be triggered during load transition. To avoid this undesired operation, ...
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.