Slide 1
... • Average dc voltage Vd can be controlled from a positive maximum to a negative minimum on a continuous basis • The converter dc current Id can not change direction • Two-quadrant operation • Rectification mode (power flow is from the ac to the dc side): +Vd & +Id • Inverter mode (power flow is from ...
... • Average dc voltage Vd can be controlled from a positive maximum to a negative minimum on a continuous basis • The converter dc current Id can not change direction • Two-quadrant operation • Rectification mode (power flow is from the ac to the dc side): +Vd & +Id • Inverter mode (power flow is from ...
Programming and Controls Workshop
... In the default software, port one y axis is output directly to pwm01 port: pwm01 = p1_y; In the default software, port two y axis is output directly to pwm02 port: pwm02 = p2_y; The two of these make up the tank drive (two joystick). The software also outputs joystick one x and y axis to pwm ...
... In the default software, port one y axis is output directly to pwm01 port: pwm01 = p1_y; In the default software, port two y axis is output directly to pwm02 port: pwm02 = p2_y; The two of these make up the tank drive (two joystick). The software also outputs joystick one x and y axis to pwm ...
Power Factor Correction and Harmonics
... The apparent power increases as explained in (2) and so does the supplied current. For this reason when harmonics are present conductors and components have to be rated for much higher currents than they need to be, with a corresponding increase in the cost of installation. Failure to up-rate cables ...
... The apparent power increases as explained in (2) and so does the supplied current. For this reason when harmonics are present conductors and components have to be rated for much higher currents than they need to be, with a corresponding increase in the cost of installation. Failure to up-rate cables ...
RF3377 GENERAL PURPOSE AMPLIFIER Features
... Care should also be taken in the resistor selection to ensure that the current into the part never exceeds 60mA over the planned operating temperature. This means that a resistor between the supply and this pin is always required, even if a supply near 3.6V is available, to provide DC feedback to pr ...
... Care should also be taken in the resistor selection to ensure that the current into the part never exceeds 60mA over the planned operating temperature. This means that a resistor between the supply and this pin is always required, even if a supply near 3.6V is available, to provide DC feedback to pr ...
Efficient Control Scheme for Five-level (NPC) Shunt Active Power
... studied for the compensation of harmonic and reactive currents in power systems. Shunt active power filters are operated as an ideal current source which can provide a dynamic and adjustable solution for eliminating the harmonic currents and compensating the reactive power by injection of compensati ...
... studied for the compensation of harmonic and reactive currents in power systems. Shunt active power filters are operated as an ideal current source which can provide a dynamic and adjustable solution for eliminating the harmonic currents and compensating the reactive power by injection of compensati ...
ISSCC 2006 / SESSION 11 / RF BUILDING BLOCKS AND PLLS / 11.9
... should be matched at the same time, the values of the slab inductors and tuning capacitors should be carefully determined. In this CMOS technology, 2µm thick Al is used for the circuit and the integrated transformer is about 83% efficient (i.e., it has about 0.8dB of loss) at 2.4GHz when operated wi ...
... should be matched at the same time, the values of the slab inductors and tuning capacitors should be carefully determined. In this CMOS technology, 2µm thick Al is used for the circuit and the integrated transformer is about 83% efficient (i.e., it has about 0.8dB of loss) at 2.4GHz when operated wi ...
NJW44H11 - 80 V NPN, 10 A Power Transistor
... copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation o ...
... copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation o ...
BP5034D24
... Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy ...
... Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy ...
A New Low-Cost Flexible IGBT Inverter Power Module for
... commutation diode dies, one three-phase monolithic, level shifting driver chip, three bootstrap diodes with a current limiting resistor and an NTC thermistor /resistor pair for over-temperature protection. The over current trip circuit also responds to an input signal generated from an external sens ...
... commutation diode dies, one three-phase monolithic, level shifting driver chip, three bootstrap diodes with a current limiting resistor and an NTC thermistor /resistor pair for over-temperature protection. The over current trip circuit also responds to an input signal generated from an external sens ...
Analog Annunciator Unit SACO 16 A3
... on the rear panel. By means of a bus connection module type SPA-ZC 17/S or SPAZC 21/S the relay can be connected to the fibre-optic SPA bus. The bus connection module type SPA-ZC 21/S is powered from the host relay, whereas the bus connection module SPA-ZC 17/S is provided with a built-in power unit ...
... on the rear panel. By means of a bus connection module type SPA-ZC 17/S or SPAZC 21/S the relay can be connected to the fibre-optic SPA bus. The bus connection module type SPA-ZC 21/S is powered from the host relay, whereas the bus connection module SPA-ZC 17/S is provided with a built-in power unit ...
The A40 Power Amplifier
... cleaning up via feedback, thus class A lends itself well to low distortion performance in a simple circuit with low open loop gain. Fig. 2 shows the transfer curves for a push-pull emitter follower output stage operated in class A, B, and AB modes where the crossover distortion is apparent in the di ...
... cleaning up via feedback, thus class A lends itself well to low distortion performance in a simple circuit with low open loop gain. Fig. 2 shows the transfer curves for a push-pull emitter follower output stage operated in class A, B, and AB modes where the crossover distortion is apparent in the di ...
POWER SUPPLY CONTROL PSC 100 The control and monitoring unit
... with AEG’s digital Switch Mode Rectifiers allows for the design of powerful DC Power Systems compared to DC systems with only stand-alone rectifiers. Apart from the power cabling only a simple and clear arrangement of Bus wiring is required between PSC 100 and the max. 31 rectifiers. The auxiliary p ...
... with AEG’s digital Switch Mode Rectifiers allows for the design of powerful DC Power Systems compared to DC systems with only stand-alone rectifiers. Apart from the power cabling only a simple and clear arrangement of Bus wiring is required between PSC 100 and the max. 31 rectifiers. The auxiliary p ...
Three Level Inverter Based Shunt Active Power Filter Using Multi
... voltages with very low distortion, reducing dv/dt stress high power conversion capability and achieving a high equivalent switching frequency effect at rather low device switching frequency [12] Basically, multilevel inverters have been developed for applications such as ac motor drives and static V ...
... voltages with very low distortion, reducing dv/dt stress high power conversion capability and achieving a high equivalent switching frequency effect at rather low device switching frequency [12] Basically, multilevel inverters have been developed for applications such as ac motor drives and static V ...
1969 , Volume , Issue June-1969
... (CATV), wideband telephone carrier and military com munications, there is a need for a TDR to solve the spe cific problem of precisely locating faults on coaxial cable at very high frequencies. In the CATV industry, there are a number of impor tant requirements. For CATV applications, the instru men ...
... (CATV), wideband telephone carrier and military com munications, there is a need for a TDR to solve the spe cific problem of precisely locating faults on coaxial cable at very high frequencies. In the CATV industry, there are a number of impor tant requirements. For CATV applications, the instru men ...
SCADA (Supervisory Control And Data Acquisition)
... communications systems mainly for the military but are seldom used for commercial digital transmission systems. PCM is by far the most prevalent form of pulse ...
... communications systems mainly for the military but are seldom used for commercial digital transmission systems. PCM is by far the most prevalent form of pulse ...
Overview
... It is CLM’s position that any inductive load should have a GFCI circuit in place for protection. This is a relatively inexpensive requirement with extraordinary capability to defend against any possible over voltage/current condition that could pose a fire risk. Any motor; blower motors, drive motor ...
... It is CLM’s position that any inductive load should have a GFCI circuit in place for protection. This is a relatively inexpensive requirement with extraordinary capability to defend against any possible over voltage/current condition that could pose a fire risk. Any motor; blower motors, drive motor ...
Power XpertTM 4000/6000/8000 Power Quality Meters
... The Web server also provides the energy and demand readings required to help manage the cost of energy. Readings include KWh, KVARh, delivered and received and KVAh with time of use and separate status input controlled energy accumulation to account for energy during special times such as rate alert ...
... The Web server also provides the energy and demand readings required to help manage the cost of energy. Readings include KWh, KVARh, delivered and received and KVAh with time of use and separate status input controlled energy accumulation to account for energy during special times such as rate alert ...
AN2007-03 7ED020E12-FI-W2
... In case of short circuit, over current or over temperature the /Fault Pin (X5-8) will be switched to low to report an error to the microcontroller. After a definable delay time t=R20*C23 the driver will be switched on again if the fault condition does not exist anymore. So in case of fault condition ...
... In case of short circuit, over current or over temperature the /Fault Pin (X5-8) will be switched to low to report an error to the microcontroller. After a definable delay time t=R20*C23 the driver will be switched on again if the fault condition does not exist anymore. So in case of fault condition ...
EE-36 - International Journal of Advance Research and Innovation
... serious, it will even cause production accident or human causes. On the other hand, the loads in large scale industrial enterprises always have outstanding characteristics such as nonlinear, impact or intermittent, and the start or stop of a single load will has much influence on power grid Taking t ...
... serious, it will even cause production accident or human causes. On the other hand, the loads in large scale industrial enterprises always have outstanding characteristics such as nonlinear, impact or intermittent, and the start or stop of a single load will has much influence on power grid Taking t ...
datasheet - BatterySpace.com
... Circuit potentials are at 115 VAC or 230 VAC above earth ground. Avoid direct contact with the printed circuit board or with circuit elements to prevent the risk of serious injury or fatality. Use a non-metallic screwdriver for adjusting the calibration trimpot. Use approved personal protective equi ...
... Circuit potentials are at 115 VAC or 230 VAC above earth ground. Avoid direct contact with the printed circuit board or with circuit elements to prevent the risk of serious injury or fatality. Use a non-metallic screwdriver for adjusting the calibration trimpot. Use approved personal protective equi ...
A Glossary of Terms Commonly Used in Data Acquisition and Control
... An analog input is an infinitely variable signal. In most data acquisition systems this signal is connected to an input amplifier and then to an A/D converter. Analog Output A waveform or control signal generated as a continuous function of the measured parameter. Analog Trigger A trigger that occur ...
... An analog input is an infinitely variable signal. In most data acquisition systems this signal is connected to an input amplifier and then to an A/D converter. Analog Output A waveform or control signal generated as a continuous function of the measured parameter. Analog Trigger A trigger that occur ...
Low-Voltage, Low-Power and High Gain CMOS OTA
... Recently, signi cant e orts have been invested in reducing the power consumption of the operational ampli ers and in developing circuits that operate with extremely small voltage supplies. The trend toward implementing systems with low supply voltages has created challenging task in the design of mo ...
... Recently, signi cant e orts have been invested in reducing the power consumption of the operational ampli ers and in developing circuits that operate with extremely small voltage supplies. The trend toward implementing systems with low supply voltages has created challenging task in the design of mo ...
Step-Down DC/DC Controller TLE 6389
... ranging from 1mA up to 2.5A. A unique PWM/PFM control scheme operates with up to a 100% duty cycle, resulting in very low dropout voltage. This control scheme eliminates minimum load requirements and reduces the supply current under light loads to 120µA, depending on dimensioning of external compone ...
... ranging from 1mA up to 2.5A. A unique PWM/PFM control scheme operates with up to a 100% duty cycle, resulting in very low dropout voltage. This control scheme eliminates minimum load requirements and reduces the supply current under light loads to 120µA, depending on dimensioning of external compone ...
LM317T Integrated Circuit 3−Terminal Adjustable Positive Voltage
... of supplying in excess of 1.5A over a 1.2V to 37V output range. This device is exceptionally easy to use and both line and load regulation are better than standard fixed regulators. In addition to higher performance than fixed regulators, the LM317T offers full overload protection available only in ...
... of supplying in excess of 1.5A over a 1.2V to 37V output range. This device is exceptionally easy to use and both line and load regulation are better than standard fixed regulators. In addition to higher performance than fixed regulators, the LM317T offers full overload protection available only in ...
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.