AC/DC and DC/AC Multilevel... Regulation. Applied To the Asynchronous Machine
... Abstract. This work is based on spectral analysis of the current and the performance of each type of rectifier is two or three-level PWM-controlled strategy. This work is done through waterfalls consist of two three-phase rectifiers and three-level PWM inverter and a three-phase three-level NPC stru ...
... Abstract. This work is based on spectral analysis of the current and the performance of each type of rectifier is two or three-level PWM-controlled strategy. This work is done through waterfalls consist of two three-phase rectifiers and three-level PWM inverter and a three-phase three-level NPC stru ...
Thyristors
... voltage, scr is forward biased , junctions J1 and J2 are forward biased but J2 is reverse biased. • Forward conduction mode: When scr is in forward conduction mode and the anode voltage is increased then reverse voltage breakdown for junction J2 takes place , unlike diode the breakdown occurs in for ...
... voltage, scr is forward biased , junctions J1 and J2 are forward biased but J2 is reverse biased. • Forward conduction mode: When scr is in forward conduction mode and the anode voltage is increased then reverse voltage breakdown for junction J2 takes place , unlike diode the breakdown occurs in for ...
Multi-DC/DC Color LED Kit Hardware
... set forth herein but rather shall be subject to the applicable terms and conditions that accompany such Software 1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned, or otherwise distributed for commercial purposes by Users, in ...
... set forth herein but rather shall be subject to the applicable terms and conditions that accompany such Software 1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned, or otherwise distributed for commercial purposes by Users, in ...
DRV8871 3.6-A Brushed DC Motor Driver With Internal Current
... When IN1 and IN2 are both low for time tSLEEP (typically 1 ms), the DRV8871 device enters a low-power sleep mode, where the outputs remain High-Z and the device uses IVMSLEEP (microamps) of current. If the device is powered up while both inputs are low, sleep mode is immediately entered. After IN1 o ...
... When IN1 and IN2 are both low for time tSLEEP (typically 1 ms), the DRV8871 device enters a low-power sleep mode, where the outputs remain High-Z and the device uses IVMSLEEP (microamps) of current. If the device is powered up while both inputs are low, sleep mode is immediately entered. After IN1 o ...
KST2222A KST2222A NPN Epit axial Silicon T ransistor
... This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. ...
... This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. ...
docx - PAWS
... Discuss the results of the Tungsten lamp circuit. Compare initial lamp resistance with steady state lamp resistance. Compare in-rush (initial) current with steady state current. Is in-rush current higher or lower than steady state current? Explain why in term of initial and steady state lamp resista ...
... Discuss the results of the Tungsten lamp circuit. Compare initial lamp resistance with steady state lamp resistance. Compare in-rush (initial) current with steady state current. Is in-rush current higher or lower than steady state current? Explain why in term of initial and steady state lamp resista ...
TANK ALERT® I alarm system
... Float: 3.38 inch diameter x 4.55 inch long (8.58 cm x 11.56 cm), high impact, corrosion resistant PVC housing for use in sewage and non-potable water up to 140oF (60oC) Switch: hermetically sealed steel capsule features mercury-to-mercury contacts ...
... Float: 3.38 inch diameter x 4.55 inch long (8.58 cm x 11.56 cm), high impact, corrosion resistant PVC housing for use in sewage and non-potable water up to 140oF (60oC) Switch: hermetically sealed steel capsule features mercury-to-mercury contacts ...
Reversible Current Power Supply for Fast-Field
... problem at hand is to provide the load with a range of current values of [-Iα, Imax] in order to obtain a range of magnetic flux density values of [0, Bmax]. To do that, the converter must supply current in the stages of positive values of B, and absorb the current at the stages of zero field, and a ...
... problem at hand is to provide the load with a range of current values of [-Iα, Imax] in order to obtain a range of magnetic flux density values of [0, Bmax]. To do that, the converter must supply current in the stages of positive values of B, and absorb the current at the stages of zero field, and a ...
doc - PAWS
... Discuss the results of the Tungsten lamp circuit. Compare initial lamp resistance with steady state lamp resistance. Compare in-rush (initial) current with steady state current. Is in-rush current higher or lower than steady state current? Explain why in term of initial and steady state lamp resista ...
... Discuss the results of the Tungsten lamp circuit. Compare initial lamp resistance with steady state lamp resistance. Compare in-rush (initial) current with steady state current. Is in-rush current higher or lower than steady state current? Explain why in term of initial and steady state lamp resista ...
McIntosh MR80 Owner Manual
... is driven from the limiter is also summed at the input to the operational amplifier. The output of the operational amplifier is a voltage that is proportional to the log of the RF input level. Dynamic range is from 2mV to over 2V, that is, greater than 120dB. A solid state signal strength meter is u ...
... is driven from the limiter is also summed at the input to the operational amplifier. The output of the operational amplifier is a voltage that is proportional to the log of the RF input level. Dynamic range is from 2mV to over 2V, that is, greater than 120dB. A solid state signal strength meter is u ...
Introduction - EECG Toronto
... Figure 5a demonstrates a conventional gain stage that utilizes a differential amplifier with triode-based loads for the ring oscillator. The operating frequency can be set by VGP and tuned by varying VGN. This configuration suffers two draw back at low supply voltage. First, the frequency dependence ...
... Figure 5a demonstrates a conventional gain stage that utilizes a differential amplifier with triode-based loads for the ring oscillator. The operating frequency can be set by VGP and tuned by varying VGN. This configuration suffers two draw back at low supply voltage. First, the frequency dependence ...
A receiver architecture for devices in wireless body area networks
... since the battery cannot be replaced and must last the product lifetime, and the smaller the size of the implant the more comfortable for the patient. In some cases it is even possible to have a battery-less system using energy scavenging or remote powering [4]. In other applications like entertainm ...
... since the battery cannot be replaced and must last the product lifetime, and the smaller the size of the implant the more comfortable for the patient. In some cases it is even possible to have a battery-less system using energy scavenging or remote powering [4]. In other applications like entertainm ...
Adding voltage rang for old multimeter
... Which it is good to measuring, because generally rechargeable battery have voltage of 1.2V, when lower than 1.1V should re charge again. (In case the Ni-MH rechargeable battery only) But when voltage over 1.5V is fully can use them. Understand the voltmeter before! First of all, we set range of mult ...
... Which it is good to measuring, because generally rechargeable battery have voltage of 1.2V, when lower than 1.1V should re charge again. (In case the Ni-MH rechargeable battery only) But when voltage over 1.5V is fully can use them. Understand the voltmeter before! First of all, we set range of mult ...
BP-1 Pressure Monitor - World Precision Instruments
... zeroed using the Position knob. Tighten the concentric collar of this knob to lock the zero setting. Apply a known constant pressure to the pressure transducer and adjust the ADJ potentiometer with a screwdriver until the digital panel meter reads the appropriate value eg. 100 on the meter for 100 m ...
... zeroed using the Position knob. Tighten the concentric collar of this knob to lock the zero setting. Apply a known constant pressure to the pressure transducer and adjust the ADJ potentiometer with a screwdriver until the digital panel meter reads the appropriate value eg. 100 on the meter for 100 m ...
Considering Instantaneous Voltage Drop Versus Sustained Voltage
... Instantaneous Voltage Dip (Why it is normally a primary consideration for motor starting systems) • Motor starting is recognized as a complete system performance issue with IVD considered the primary criteria influencing a motor starting system. Ignoring the complexities and dynamics of IVD, withou ...
... Instantaneous Voltage Dip (Why it is normally a primary consideration for motor starting systems) • Motor starting is recognized as a complete system performance issue with IVD considered the primary criteria influencing a motor starting system. Ignoring the complexities and dynamics of IVD, withou ...
High Performance, Low Power, ISM Band FSK/GFSK/OOK/MSK/GMSK Transceiver IC ADF7023-J Silicon Anomaly
... The RC oscillator can be used to control the wake-up timing of the ADF7023-J low power modes. Its typical accuracy is specified as 1.5% after a calibration at 25°C. The calibration range of the RC oscillator is not sufficient to ensure a 1.5% typical accuracy on all devices. This can result in the p ...
... The RC oscillator can be used to control the wake-up timing of the ADF7023-J low power modes. Its typical accuracy is specified as 1.5% after a calibration at 25°C. The calibration range of the RC oscillator is not sufficient to ensure a 1.5% typical accuracy on all devices. This can result in the p ...
RF3378 GENERAL PURPOSE AMPLIFIER Features
... Note 1: All specification and characterization data has been gathered on standard FR-4 evaluation boards. These evaluation boards are not optimized for frequencies above 2.5GHz. Performance above 2.5GHz may improve if a high performance PCB is used. Note 2: The RF3378 must be operated at or below 60 ...
... Note 1: All specification and characterization data has been gathered on standard FR-4 evaluation boards. These evaluation boards are not optimized for frequencies above 2.5GHz. Performance above 2.5GHz may improve if a high performance PCB is used. Note 2: The RF3378 must be operated at or below 60 ...
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.