IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... Masoud (2007) conducted a study on the study ofthe unbalanced power flow in the distribution system. The method used is novel 3-phase, the method is based on the formation of a constant matrix based on network topology needs to be created only once. This method does not involve complex mathematical ...
... Masoud (2007) conducted a study on the study ofthe unbalanced power flow in the distribution system. The method used is novel 3-phase, the method is based on the formation of a constant matrix based on network topology needs to be created only once. This method does not involve complex mathematical ...
LM101A, LM201A, LM301A
... certain precautions given below to protect the devices from abnormal operating conditions. It might be pointed out that the advice given here is applicable to practically any IC op amp, although the exact reason why may differ with different devices. When driving either input from a low-impedance so ...
... certain precautions given below to protect the devices from abnormal operating conditions. It might be pointed out that the advice given here is applicable to practically any IC op amp, although the exact reason why may differ with different devices. When driving either input from a low-impedance so ...
Temperature Measurement and Control Glossary by OMEGA
... Absolute Zero: Temperature at which thermal energy is at a minimum. Defined as 0 Kelvin, calculated to be –273.15°C or –459.67°F. AC: Alternating current; an electric current that reverses its direction at regularly recurring intervals. Accuracy: The closeness of an indication or reading of a measur ...
... Absolute Zero: Temperature at which thermal energy is at a minimum. Defined as 0 Kelvin, calculated to be –273.15°C or –459.67°F. AC: Alternating current; an electric current that reverses its direction at regularly recurring intervals. Accuracy: The closeness of an indication or reading of a measur ...
Signal to Noise Ratio.
... movement of electrons or holes across a PN junction. Even through current flow is established by external bias voltages, there will still be some random movement of electrons or holes due to discontinuities in the device. An example of such a discontinuity is the contact between the copper lead and ...
... movement of electrons or holes across a PN junction. Even through current flow is established by external bias voltages, there will still be some random movement of electrons or holes due to discontinuities in the device. An example of such a discontinuity is the contact between the copper lead and ...
Demagnetization Diagnosis of Permanent Magnet Synchronous
... locked rotor condition, the input current waveform represents internal flux distribution of PMSM. Unlike induction motor, starting torque is not produced by rotating magnetic field because the rotating magnetic field is faster than rotor speed. However, permanent magnet can be demagnetized through t ...
... locked rotor condition, the input current waveform represents internal flux distribution of PMSM. Unlike induction motor, starting torque is not produced by rotating magnetic field because the rotating magnetic field is faster than rotor speed. However, permanent magnet can be demagnetized through t ...
Industrial Product Catalog
... performance, capabilities, and flexibility. They harness the full power of cutting-edge EtherCAT and CANopen networking communication. ...
... performance, capabilities, and flexibility. They harness the full power of cutting-edge EtherCAT and CANopen networking communication. ...
LT5520 - 1.3GHz to 2.3GHz High Linearity Upconverting Mixer.
... The IF inputs are connected to the emitters of the doublebalanced mixer transistors, as shown in Figure 3. These pins are internally biased and an external resistor must be connected from each IF pin to ground to set the current through the mixer core. The circuit has been optimized to work with 100 ...
... The IF inputs are connected to the emitters of the doublebalanced mixer transistors, as shown in Figure 3. These pins are internally biased and an external resistor must be connected from each IF pin to ground to set the current through the mixer core. The circuit has been optimized to work with 100 ...
Using the Siemens S65 – Display
... running correct. If you drive the n-channel gate high for a longer time you will have a short circuit.) For the circuit below you need a pulse width (high/period) of 47% at a period frequency of 62.5kHz to generate the required voltage with 15mA LED current. A block capacitor is already implemented ...
... running correct. If you drive the n-channel gate high for a longer time you will have a short circuit.) For the circuit below you need a pulse width (high/period) of 47% at a period frequency of 62.5kHz to generate the required voltage with 15mA LED current. A block capacitor is already implemented ...
Digital Energy™ GT Series
... Power factor one input The AC input current drawn by the UPS is less than that supplied to the load. Contrary to UPSs and computers without this feature, no disturbances that may cause problems to other electrical equipment are fed back to the mains. This feature will become mandatory within a few y ...
... Power factor one input The AC input current drawn by the UPS is less than that supplied to the load. Contrary to UPSs and computers without this feature, no disturbances that may cause problems to other electrical equipment are fed back to the mains. This feature will become mandatory within a few y ...
UCC27517A Single-Channel High-Speed Low
... The UCC2751xA single-channel, high-speed, low-side gate-driver device is capable of effectively driving MOSFET and IGBT power switches. Using a design that inherently minimizes shoot-through current, the UCC2751x device is capable of sourcing and sinking high peak-current pulses into capacitive load ...
... The UCC2751xA single-channel, high-speed, low-side gate-driver device is capable of effectively driving MOSFET and IGBT power switches. Using a design that inherently minimizes shoot-through current, the UCC2751x device is capable of sourcing and sinking high peak-current pulses into capacitive load ...
HVDC Technology 1.Introduction The development of HVDC(High
... HVDC transmission refers to that the AC power generated at a power plant is transformed into DC power before its transmission. At the inverter (receiving side), it is then transformed back into its original AC power and then supplied to each household. Such power transmission method makes it possibl ...
... HVDC transmission refers to that the AC power generated at a power plant is transformed into DC power before its transmission. At the inverter (receiving side), it is then transformed back into its original AC power and then supplied to each household. Such power transmission method makes it possibl ...
Frequently Asked Questions Solid-State Relays Frequently Asked
... 15. Q: HOW CAN AN SSR BE USED TO DRIVE EXTERNAL POWER MOSFETs? A: The LED emits light onto a PV stack which acts as a power source for the MOSFET switches. In case of fully integrated SSRs, the part already consists of a pair of integrated MOSFETs on the output. Vishay also offers stand-alone MOSFET ...
... 15. Q: HOW CAN AN SSR BE USED TO DRIVE EXTERNAL POWER MOSFETs? A: The LED emits light onto a PV stack which acts as a power source for the MOSFET switches. In case of fully integrated SSRs, the part already consists of a pair of integrated MOSFETs on the output. Vishay also offers stand-alone MOSFET ...
QUALITROL-IRIS POWER IS THE WORLD’S LARGEST PROVIDER OF MONITORING AND
... IRIS POWER RFAII-R The Iris Power RFAII-R technology is a second generation rotor flux analyzer that revolutionizes the analysis of the flux data by providing an initial diagnosis of the rotor winding condition usually even if the generator load is constant! This portable instrument can collect and ...
... IRIS POWER RFAII-R The Iris Power RFAII-R technology is a second generation rotor flux analyzer that revolutionizes the analysis of the flux data by providing an initial diagnosis of the rotor winding condition usually even if the generator load is constant! This portable instrument can collect and ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
... This results in a chip with the same functionality in a smaller area, or chips with more functionality in the same area. Since fabrication costs for a semiconductor wafer are relatively fixed, the cost per integrated circuits is mainly related to the number of chips that can be produced per wafer. H ...
... This results in a chip with the same functionality in a smaller area, or chips with more functionality in the same area. Since fabrication costs for a semiconductor wafer are relatively fixed, the cost per integrated circuits is mainly related to the number of chips that can be produced per wafer. H ...
ZXCT1009 HIGH-SIDE CURRENT MONITOR Description
... Benchmarq bq2954 Charge Management IC. Most of the support components for the bq2954 are omitted for clarity. This design also uses the Diodes FZT789A high current Super-ß PNP as the switching transistor in the DC-DC step down converter and the FMMT451 as the drive NPN for the FZT789A. The circuit c ...
... Benchmarq bq2954 Charge Management IC. Most of the support components for the bq2954 are omitted for clarity. This design also uses the Diodes FZT789A high current Super-ß PNP as the switching transistor in the DC-DC step down converter and the FMMT451 as the drive NPN for the FZT789A. The circuit c ...
Focus Catalog - Bel Fuse Inc.
... The Tunable Loop™ series power modules are non-isolated DC/DC converters that deliver up to 50A of output current in pickand-placeable surface mount packages, ranging in size depending on output current capability. The modules operate over a wide 3V to 14V input voltage range and provide a precisely ...
... The Tunable Loop™ series power modules are non-isolated DC/DC converters that deliver up to 50A of output current in pickand-placeable surface mount packages, ranging in size depending on output current capability. The modules operate over a wide 3V to 14V input voltage range and provide a precisely ...
development of a dual sensor heat control system
... sensations-hotness and coldness. This is due to the fact that most biological, chemical, electronic, mechanical and physical systems are affected by temperature. In many instances, some processes perform better within a range of temperatures. Also, certain chemical reactions, biological processes an ...
... sensations-hotness and coldness. This is due to the fact that most biological, chemical, electronic, mechanical and physical systems are affected by temperature. In many instances, some processes perform better within a range of temperatures. Also, certain chemical reactions, biological processes an ...
A Bio-inspired Ultra-Energy-Efficient Analog-to-Digital Converter for Biomedical Applications
... timing residue after the clock edge to bring it back to its correct value. Further details of the error-cancellation mechanism are presented in [11] and will not be discussed here. It is worth summarizing the main features of our converter: Like a dual-slope converter, our converter uses time as an ...
... timing residue after the clock edge to bring it back to its correct value. Further details of the error-cancellation mechanism are presented in [11] and will not be discussed here. It is worth summarizing the main features of our converter: Like a dual-slope converter, our converter uses time as an ...
ADS7843 数据资料 dataSheet 下载
... operate with a reference in the range of 1V to +VCC. There are several critical items concerning the reference input and its wide voltage range. As the reference voltage is reduced, the analog voltage weight of each digital output code is also reduced. This is often referred to as the LSB (least sig ...
... operate with a reference in the range of 1V to +VCC. There are several critical items concerning the reference input and its wide voltage range. As the reference voltage is reduced, the analog voltage weight of each digital output code is also reduced. This is often referred to as the LSB (least sig ...
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.