Three Phase - Single Phase Converter
... kinetic energy of a three-phase induction 220 Vrms machine into a DC voltage. Since the input power and voltage drops in time, the converter keeps the DC voltage constant by controlling SPWM that generates the switching pulses of the converter. ...
... kinetic energy of a three-phase induction 220 Vrms machine into a DC voltage. Since the input power and voltage drops in time, the converter keeps the DC voltage constant by controlling SPWM that generates the switching pulses of the converter. ...
AN EFFICIENT BRAKING ALGORITHM FOR INTERIOR
... energy largely contributes to the raise of voltage on a DC link capacitor. A common way of solving this problem is to add switching and passive element (braking transistor and resistor) in parallel with DC link capacitor, though creating a braking chopper. Chopper maintains voltage on a DC link capa ...
... energy largely contributes to the raise of voltage on a DC link capacitor. A common way of solving this problem is to add switching and passive element (braking transistor and resistor) in parallel with DC link capacitor, though creating a braking chopper. Chopper maintains voltage on a DC link capa ...
ADS5411 数据资料 dataSheet 下载
... 3.3 V CMOS compatible digital outputs. The ADS5411 input buffer isolates the internal switching of the on-chip Track and Hold (T&H) from disturbing the signal source. An internal reference generator is also provided to further simplify the system design. The ADS5411 has outstanding low noise and lin ...
... 3.3 V CMOS compatible digital outputs. The ADS5411 input buffer isolates the internal switching of the on-chip Track and Hold (T&H) from disturbing the signal source. An internal reference generator is also provided to further simplify the system design. The ADS5411 has outstanding low noise and lin ...
Electronic Time Switches
... ET8000 Series 7-Day Electronic Astronomic Time Switch Intermatic’s ET8000 Series features include: Automatic Daylight Saving Time adjustment, multi-voltage operation from 120 to 277 VAC, and to-the-minute programming for accurate load control and reduced energy costs, up to 28 setpoints or events (1 ...
... ET8000 Series 7-Day Electronic Astronomic Time Switch Intermatic’s ET8000 Series features include: Automatic Daylight Saving Time adjustment, multi-voltage operation from 120 to 277 VAC, and to-the-minute programming for accurate load control and reduced energy costs, up to 28 setpoints or events (1 ...
User`s Manual - Minuteman UPS
... Because the UPS is an on-line design, conditioned power is provided continuously to the attached devices. Unlike the standby UPS, its on-line structure is constantly regulating, filtering the output power when commercial power is present. During electrical power failure, the unit employs its interna ...
... Because the UPS is an on-line design, conditioned power is provided continuously to the attached devices. Unlike the standby UPS, its on-line structure is constantly regulating, filtering the output power when commercial power is present. During electrical power failure, the unit employs its interna ...
TC-20 Manual - NPI Electronic
... The TC-20 temperature control system is designed for heating purposes in electrophysiological experiments. provides two independent temperature controller channels and is housed in 19 inch standard cabinet, with built-in power supply and cooling elements for the power devices. The TC-20 system guara ...
... The TC-20 temperature control system is designed for heating purposes in electrophysiological experiments. provides two independent temperature controller channels and is housed in 19 inch standard cabinet, with built-in power supply and cooling elements for the power devices. The TC-20 system guara ...
section 260913 - electrical power monitoring
... As-built versions of submittal Product Data. Names, addresses, e-mail addresses, and 24-hour telephone numbers of Installer and service representatives for the system and products. Operator's manual with procedures for operating control systems including logging on and off, handling alarms, producin ...
... As-built versions of submittal Product Data. Names, addresses, e-mail addresses, and 24-hour telephone numbers of Installer and service representatives for the system and products. Operator's manual with procedures for operating control systems including logging on and off, handling alarms, producin ...
Rajasthan Technical University, Kota COURSE - FILE
... 1. The generator of Problem 1 is feeding 150 MVA at 0.85 pf lagging infinite bus bar at 15 kV. a. Determine Ey and d for the above operation. What are P and Q fed to the bus bars? b. Now E, is reduced by l0o/o keeping mechanical input to generator same, find new dand Q delIered. c. Et is now maintai ...
... 1. The generator of Problem 1 is feeding 150 MVA at 0.85 pf lagging infinite bus bar at 15 kV. a. Determine Ey and d for the above operation. What are P and Q fed to the bus bars? b. Now E, is reduced by l0o/o keeping mechanical input to generator same, find new dand Q delIered. c. Et is now maintai ...
System Benefits for Solar Inverters using SiC Semiconductor Modules
... To obtain normally-off behavior during inverter operation the normally-on single switch SiC JFETs are connected in series with low-voltage power p-channel MOSFETs. This cascode configuration [2] ensures safe operation during gate-drive supply power-off and / or detected shoot through. A gate drive c ...
... To obtain normally-off behavior during inverter operation the normally-on single switch SiC JFETs are connected in series with low-voltage power p-channel MOSFETs. This cascode configuration [2] ensures safe operation during gate-drive supply power-off and / or detected shoot through. A gate drive c ...
V. Design Of Power Supply Circuit
... relays, solenoids, DC and stepping motors. Two enable inputs are provided to enable or disable the device independently of the input signals. The emitters of the lower transistors of each bridge are connected together and the corresponding external terminal can be used for the connection of an exter ...
... relays, solenoids, DC and stepping motors. Two enable inputs are provided to enable or disable the device independently of the input signals. The emitters of the lower transistors of each bridge are connected together and the corresponding external terminal can be used for the connection of an exter ...
Evaluate: MAX1365–MAX1368 MAX1366 Evaluation Kit/Evaluation System General Description Features
... Follow the steps below to verify board operation. Caution: Do not turn on the power supply until all connections are completed. 1) Visit the Maxim website (www.maxim-ic.com/evkitsoftware) to download the most recent version of the EV kit software, 1366Rxx.ZIP. 2) Install the MAX1366 evaluation softw ...
... Follow the steps below to verify board operation. Caution: Do not turn on the power supply until all connections are completed. 1) Visit the Maxim website (www.maxim-ic.com/evkitsoftware) to download the most recent version of the EV kit software, 1366Rxx.ZIP. 2) Install the MAX1366 evaluation softw ...
L0446166
... from its first introduction in 1986 [1]. The speed of an induction motor depend on the frequency of the supply voltage 50Hz and the speed can only be controlled by varying the frequency, the way to do it is to rectify the AC to DC and convert it back to AC but with another frequency. An electronic s ...
... from its first introduction in 1986 [1]. The speed of an induction motor depend on the frequency of the supply voltage 50Hz and the speed can only be controlled by varying the frequency, the way to do it is to rectify the AC to DC and convert it back to AC but with another frequency. An electronic s ...
Xilinx Template (light) rev
... software to develop compensation algorithms and directly target FPGA implementation • No FPGA design / HDL knowledge needed ...
... software to develop compensation algorithms and directly target FPGA implementation • No FPGA design / HDL knowledge needed ...
4200-DR Series LaserSource User's Manual
... Press the Menu button to enter the menu, and using the knob, turn to the right until the Io Lim setting is displayed. Press the knob to edit the setting, and adjust the limit as appropriate to your laser diode. Press the knob again to save the value. Make the same adjustments to the voltage limit (V ...
... Press the Menu button to enter the menu, and using the knob, turn to the right until the Io Lim setting is displayed. Press the knob to edit the setting, and adjust the limit as appropriate to your laser diode. Press the knob again to save the value. Make the same adjustments to the voltage limit (V ...
Physics 4B Lab Experiments
... Some elementary particles (electrons, protons, etc.), have an intrinsic electrical property called Electric Charge (q). The motion of these particles (Charge Carriers) results in a displacement of electric charge (dq), the time-rate of which (dq/dt) is called Electric Current (I). Charge flow (curre ...
... Some elementary particles (electrons, protons, etc.), have an intrinsic electrical property called Electric Charge (q). The motion of these particles (Charge Carriers) results in a displacement of electric charge (dq), the time-rate of which (dq/dt) is called Electric Current (I). Charge flow (curre ...
Self-calibrating Online Wearout Detection - CCCP
... failure prediction, supplies the system with a failure forecast allowing it to take preventative measures to avoid, or at least minimize, the impact of expected device failures. Historically, high-end server systems have relied on error detection to provide a high degree of system reliability. Error ...
... failure prediction, supplies the system with a failure forecast allowing it to take preventative measures to avoid, or at least minimize, the impact of expected device failures. Historically, high-end server systems have relied on error detection to provide a high degree of system reliability. Error ...
Pantograph disconnector type GW54, up to 550 kV Maximum
... The disconnectors and earthing switches supplied by ABB are designed so as to ensure that they are virtually maintenance free. However, to warrant a long and troublefree service period, we advise that a visual inspection of the contacts and bearing points be carried out at regular intervals. If the ...
... The disconnectors and earthing switches supplied by ABB are designed so as to ensure that they are virtually maintenance free. However, to warrant a long and troublefree service period, we advise that a visual inspection of the contacts and bearing points be carried out at regular intervals. If the ...
Electronics circuits I
... There are many situations wherein the signal picked up from a source (say a transducers) is too feeble to be of any use and has to be magnified before it can have the capability to drive a system (say another transducer). For example, the electrical signal produced by a microphone has to be magnifie ...
... There are many situations wherein the signal picked up from a source (say a transducers) is too feeble to be of any use and has to be magnified before it can have the capability to drive a system (say another transducer). For example, the electrical signal produced by a microphone has to be magnifie ...
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.