high step-up converter with three-winding coupled
... In practice, the step-up voltage gain is limited by effects of the power switch, rectifier diode, and the resistances of the inductors and capacitors. In addition, the extreme duty cycle may result in a serious reverse-recovery problem and conduction losses. A fly back converter is able to achieve h ...
... In practice, the step-up voltage gain is limited by effects of the power switch, rectifier diode, and the resistances of the inductors and capacitors. In addition, the extreme duty cycle may result in a serious reverse-recovery problem and conduction losses. A fly back converter is able to achieve h ...
EE117 Power Electronics Lab
... Objectives: to observe and analyse the working of different kinds of power electronic circuits, to verify the v-i characteristic of devices being used as switch, application of power electronics in induction motor speed control. List of experiments 1. Study of V-I characteristics of a given SCR. 2. ...
... Objectives: to observe and analyse the working of different kinds of power electronic circuits, to verify the v-i characteristic of devices being used as switch, application of power electronics in induction motor speed control. List of experiments 1. Study of V-I characteristics of a given SCR. 2. ...
T.W. Barton and D.J. Perreault, “An RF-input Outphasing Power Amplifier with RF Signal Decomposition Network,” 2015 International Microwave Symposium , May 2015.
... phase-modulating amplifiers to modulate the carrier signal by the (baseband) audio signal and drive the branch PAs [1]. In modern outphasing amplifiers, phase-shift modulation is typically realized using digital-to-RF IQ modulators operating on data from a baseband signal component separator. This u ...
... phase-modulating amplifiers to modulate the carrier signal by the (baseband) audio signal and drive the branch PAs [1]. In modern outphasing amplifiers, phase-shift modulation is typically realized using digital-to-RF IQ modulators operating on data from a baseband signal component separator. This u ...
Q: Are the LED Downlights available in low voltage
... A: Yes, there are many possible dimming applications in both low voltage DC or using line voltage 110VAC/220VAC. The low voltage dimming can either be done using the Cantalupi CLL Dimmer Module or using a local dimmable driver at each light. Discuss your needs with the sales representative and we wi ...
... A: Yes, there are many possible dimming applications in both low voltage DC or using line voltage 110VAC/220VAC. The low voltage dimming can either be done using the Cantalupi CLL Dimmer Module or using a local dimmable driver at each light. Discuss your needs with the sales representative and we wi ...
Quick Start Guide Universal Voltage Output Amplifier
... Universal Voltage Output Amplifier for LI-COR™ Sensors The UTA is a special purpose amplifier that provides a simple interface between LI-COR™ light level sensors and voltage input data loggers, chart recorders, HVAC, and greenhouse controls. The UTA converts the micro-Amp current output of the ligh ...
... Universal Voltage Output Amplifier for LI-COR™ Sensors The UTA is a special purpose amplifier that provides a simple interface between LI-COR™ light level sensors and voltage input data loggers, chart recorders, HVAC, and greenhouse controls. The UTA converts the micro-Amp current output of the ligh ...
Internal Resistance
... The e.m.f. tells you how many joules of energy the battery will supply to every coulomb of charge which passes through it. ...
... The e.m.f. tells you how many joules of energy the battery will supply to every coulomb of charge which passes through it. ...
H series 1200 V IGBTs on 3-phase full-bridge DC
... No additional winding to reset the magnetic flux in the core is required for the transformer because the magnetizing energy stored in the core during on-time and any energy stored in the leakage inductance are returned to the DC input capacitor via the activation of the fast recovery diodes In a pul ...
... No additional winding to reset the magnetic flux in the core is required for the transformer because the magnetizing energy stored in the core during on-time and any energy stored in the leakage inductance are returned to the DC input capacitor via the activation of the fast recovery diodes In a pul ...
PDF VERSION click here
... Consumers don’t like to feel deceived. A company usually gets one chance to make it right: when the customer calls to complain. In this case, Fitbit blew it on both levels. When the users called to gripe about the HR accuracy, they should have accepted the complaint, also known as “free customer sur ...
... Consumers don’t like to feel deceived. A company usually gets one chance to make it right: when the customer calls to complain. In this case, Fitbit blew it on both levels. When the users called to gripe about the HR accuracy, they should have accepted the complaint, also known as “free customer sur ...
ABB industrial drives - ACS880, single drives
... extruders, winches, conveyors, mixers, compressors, pumps and fans. The drive configuration contains a rectifier, DC link and an inverter, all built into a compact cabinet. The features and options include extended inputs and outputs, fieldbus options, du/dt filtering, EMC filtering, a brake resisto ...
... extruders, winches, conveyors, mixers, compressors, pumps and fans. The drive configuration contains a rectifier, DC link and an inverter, all built into a compact cabinet. The features and options include extended inputs and outputs, fieldbus options, du/dt filtering, EMC filtering, a brake resisto ...
transformer
... We can derive equations for voltage and current ratios in the ideal transformers both in the time domain and phasor ...
... We can derive equations for voltage and current ratios in the ideal transformers both in the time domain and phasor ...
Avtron LPV700S Compact, Portable Load Bank - 500 to 700 KW
... The Avtron LPV700S Load Bank is ideal for routine load testing of standby diesel generating systems at remote sites or for factory production line testing of (UPS) Uninterruptible Power Supplies, turbines, or engine generator sets. This model provides resistive loading up to 700 KW at 240/480 Volts ...
... The Avtron LPV700S Load Bank is ideal for routine load testing of standby diesel generating systems at remote sites or for factory production line testing of (UPS) Uninterruptible Power Supplies, turbines, or engine generator sets. This model provides resistive loading up to 700 KW at 240/480 Volts ...
Block Diagram Analysis for the Magnetic Densimeter
... the buoy’s position. Data from the four regions of the photodiode is processed first by the preamp circuit, shown in detail as FIG 2 and further explained below. Four pieces of information exit this circuit, consisting of the combined voltages of each pair of neighboring quadrants. This yields what ...
... the buoy’s position. Data from the four regions of the photodiode is processed first by the preamp circuit, shown in detail as FIG 2 and further explained below. Four pieces of information exit this circuit, consisting of the combined voltages of each pair of neighboring quadrants. This yields what ...
1 - UniMAP Portal
... The power delivered to the fan at the speed of 200 rpm. 13. A 208-V, two-pole, 60Hz, Y-connected wound motor induction motor is rated at 15 hp. Its equivalent circuit components are, R1 = 0.200 Ohm X1 = 0.410 Ohm Pmech = 250 W ...
... The power delivered to the fan at the speed of 200 rpm. 13. A 208-V, two-pole, 60Hz, Y-connected wound motor induction motor is rated at 15 hp. Its equivalent circuit components are, R1 = 0.200 Ohm X1 = 0.410 Ohm Pmech = 250 W ...
500-VA DC-TO-AC INVERTER
... Compact and rugged, the 500-VA Model 1724 dc-to-ac inverter is particularly suited for space-limited applications within the telecommunications, data-processing and utility industries. Occupying only 1.75 inches (1U) of vertical rack space, this inverter provides a regulated 120-Vac, frequency-stabl ...
... Compact and rugged, the 500-VA Model 1724 dc-to-ac inverter is particularly suited for space-limited applications within the telecommunications, data-processing and utility industries. Occupying only 1.75 inches (1U) of vertical rack space, this inverter provides a regulated 120-Vac, frequency-stabl ...
Evaluates: MAX1637 MAX1637 Evaluation Kit General Description ____________________________Features
... The 2-pin headers JU1 and JU2 select the mode of operation. Table 1 lists the selectable jumper options. The 2-pin headers JU3 and JU4 select the operating frequency. Table 2 lists the selectable jumper options. The EV kit’s components are selected for 300kHz operation. Component values might need t ...
... The 2-pin headers JU1 and JU2 select the mode of operation. Table 1 lists the selectable jumper options. The 2-pin headers JU3 and JU4 select the operating frequency. Table 2 lists the selectable jumper options. The EV kit’s components are selected for 300kHz operation. Component values might need t ...
Evaluates: MAX16821B MAX16821B Evaluation Kit General Description Features
... is typically 10kΩ, and VOV is 1.276V. ...
... is typically 10kΩ, and VOV is 1.276V. ...
UMZ-T2-1045-O16-G 数据资料DataSheet下载
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
DHC-100 - Asahi America
... shall be model number OTR-100, and transmit either a current (milliamps), or voltage (VDC) reporting signal, and provide contact closure for the open position, the closed position, and a fault condition. The 3-SPST Relay carries a 1 amp electrical rating at 24 VDC or .5 amp electrical rating at 115 ...
... shall be model number OTR-100, and transmit either a current (milliamps), or voltage (VDC) reporting signal, and provide contact closure for the open position, the closed position, and a fault condition. The 3-SPST Relay carries a 1 amp electrical rating at 24 VDC or .5 amp electrical rating at 115 ...
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.