Eaton 9390 UPS
... These frequencies (harmonics) occur in odd multiplies of 60 Hz. The degree of occurrence is called total harmonic distortion (THD). If the power source can’t respond to all frequencies demanded by the circuit, then further distortion of the applied voltage may occur—creating more complication. Every ...
... These frequencies (harmonics) occur in odd multiplies of 60 Hz. The degree of occurrence is called total harmonic distortion (THD). If the power source can’t respond to all frequencies demanded by the circuit, then further distortion of the applied voltage may occur—creating more complication. Every ...
The capacitive divider in medium-voltage switchgear
... However, the technology used offers much more than merely a continual visual “yes”/“no” indication. If a suitable device is connected onto the measurement capacitance of the divider, the value of the voltage can also be continuously displayed. If this cost-effective device is used directly at the in ...
... However, the technology used offers much more than merely a continual visual “yes”/“no” indication. If a suitable device is connected onto the measurement capacitance of the divider, the value of the voltage can also be continuously displayed. If this cost-effective device is used directly at the in ...
Power MOSFET Basics
... smaller dimensions, RS, RCH, RACC are reduced because more individual unit cells can be packed in a given silicon area. RJFET on the other hand suffers from a “JFET”-effect where current is constrained to flow in a narrow n-region by the adjacent P-body region. Due to the absence of RJFET, trench ...
... smaller dimensions, RS, RCH, RACC are reduced because more individual unit cells can be packed in a given silicon area. RJFET on the other hand suffers from a “JFET”-effect where current is constrained to flow in a narrow n-region by the adjacent P-body region. Due to the absence of RJFET, trench ...
BDTIC www.BDTIC.com/infineon Wireless Components ASK/FSK Transmitter 868/433 MHz
... 868-870 MHz and 433-435 MHz. The IC offers a high level of integration and needs only a few external components. The device contains a fully integrated PLL synthesizer and a high efficiency power amplifier to drive a loop antenna. A special circuit design and an unique power amplifier design are use ...
... 868-870 MHz and 433-435 MHz. The IC offers a high level of integration and needs only a few external components. The device contains a fully integrated PLL synthesizer and a high efficiency power amplifier to drive a loop antenna. A special circuit design and an unique power amplifier design are use ...
MTY25N60E Power MOSFET 25 Amps, 600 Volts
... controlled. The lengths of various switching intervals (∆t) are determined by how fast the FET input capacitance can be charged by current from the generator. The published capacitance data is difficult to use for calculating rise and fall because drain−gate capacitance varies greatly with applied v ...
... controlled. The lengths of various switching intervals (∆t) are determined by how fast the FET input capacitance can be charged by current from the generator. The published capacitance data is difficult to use for calculating rise and fall because drain−gate capacitance varies greatly with applied v ...
TPS40180 Single Phase Stackable Controller
... Stacked modules can be configured to switch at different times while running at the same base frequency creating a multiple phase supply. Up to eight phases can be configured, and multiple modules can be set up to switch on the same phase if required. Input and output ripple current reduction occurs ...
... Stacked modules can be configured to switch at different times while running at the same base frequency creating a multiple phase supply. Up to eight phases can be configured, and multiple modules can be set up to switch on the same phase if required. Input and output ripple current reduction occurs ...
BD90610EFJ-C
... reset. However, since the TSD is designed to protect the IC, the chip temperature should be provided with the thermal shutdown detection temperature of less than approximately 150 °C. ・OCP (Over Current Protection) OCP is activated when the voltage between the drain and source (on-resistance × load ...
... reset. However, since the TSD is designed to protect the IC, the chip temperature should be provided with the thermal shutdown detection temperature of less than approximately 150 °C. ・OCP (Over Current Protection) OCP is activated when the voltage between the drain and source (on-resistance × load ...
Vm - Electrical Engineering, Penn State
... pipeline ADC is more suitable for higher resolution, requiring only n-stages for an n-bit ADC ...
... pipeline ADC is more suitable for higher resolution, requiring only n-stages for an n-bit ADC ...
SVC Static Var Compensator An insurance for improved grid system
... A reactor and thyristor valve are incorporated in each singlephase branch. Power is changed by controlling the current through the reactor via the thyristor valve. The on-state interval is controlled by delaying triggering of the thyristor valve relative to the natural zero current crossing. A thyri ...
... A reactor and thyristor valve are incorporated in each singlephase branch. Power is changed by controlling the current through the reactor via the thyristor valve. The on-state interval is controlled by delaying triggering of the thyristor valve relative to the natural zero current crossing. A thyri ...
selecting the right sensor for temperature measurement
... Temperature measurement systems using thermocouples need to provide a means of measuring the cold junction temperature (often using a platinum resistance device) and an algorithm for linearising the voltage readings to temperature. The RTD are expensive compared to thermistors and thermocouples, but ...
... Temperature measurement systems using thermocouples need to provide a means of measuring the cold junction temperature (often using a platinum resistance device) and an algorithm for linearising the voltage readings to temperature. The RTD are expensive compared to thermistors and thermocouples, but ...
MAX2900–MAX2904 200mW Single-Chip Transmitter ICs for 868MHz/915MHz ISM Bands General Description
... o Small 28-Pin QFN Package with Exposed Pad (5mm 5mm) ...
... o Small 28-Pin QFN Package with Exposed Pad (5mm 5mm) ...
ADS5242 数据资料 dataSheet 下载
... Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported. The DC ...
... Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported. The DC ...
MAX16826 Programmable, Four-String HB LED Driver with Output-Voltage Optimization and Fault Detection
... The MAX16826 contains a current-mode PWM switching regulator controller that regulates the output voltage to the LED array. The switching regulator section is configurable as a boost or SEPIC converter and its switching frequency is programmable from 100kHz to 1MHz. The MAX16826 includes 4 channels ...
... The MAX16826 contains a current-mode PWM switching regulator controller that regulates the output voltage to the LED array. The switching regulator section is configurable as a boost or SEPIC converter and its switching frequency is programmable from 100kHz to 1MHz. The MAX16826 includes 4 channels ...
(AN-7) A Simple Current-Sense Technique Eliminating
... A sense resistor RS, as shown in Figure 1, is often used for the purpose of over-current protection (OCP). RS is usually a power device because it needs to handle the large current flowing through it. Therefore, it can be costly, bulky, and inefficient. Even though the RDS(ON) of the MOSFET or monit ...
... A sense resistor RS, as shown in Figure 1, is often used for the purpose of over-current protection (OCP). RS is usually a power device because it needs to handle the large current flowing through it. Therefore, it can be costly, bulky, and inefficient. Even though the RDS(ON) of the MOSFET or monit ...
NCP1562-100WGEVB NCP1562 100 W 48 V DC-DC Converter Evaluation Board
... and flexibility needed to implement an active clamp forward dc−dc converter. This IC operates from an input supply up to 150 V, thus covering the input voltages usually found in telecom, datacom and 42 V automotive systems. One can also note that the NCP1562 can be used in mains related applications ...
... and flexibility needed to implement an active clamp forward dc−dc converter. This IC operates from an input supply up to 150 V, thus covering the input voltages usually found in telecom, datacom and 42 V automotive systems. One can also note that the NCP1562 can be used in mains related applications ...
V1.0 CDI PSU Module - Rae
... This picture shows a CX500 CDI stator as an example – the two troublesome coils are the wider ones at the top and bottom of the picture, the bottom with a metal cover over it and the top has a bit of the cap chipped off. These coils contain approximately 4000 turns of very fine wire between them wh ...
... This picture shows a CX500 CDI stator as an example – the two troublesome coils are the wider ones at the top and bottom of the picture, the bottom with a metal cover over it and the top has a bit of the cap chipped off. These coils contain approximately 4000 turns of very fine wire between them wh ...
LF2418891896
... the Fig.2. This is the most common type of LF that is normally used in analog PLL system. This LF is of linear dynamic type and its equivalent circuit may be represented by transient solution method of linear dynamic network [9]. The charge-storage element capacitor must be reduced to simplified equ ...
... the Fig.2. This is the most common type of LF that is normally used in analog PLL system. This LF is of linear dynamic type and its equivalent circuit may be represented by transient solution method of linear dynamic network [9]. The charge-storage element capacitor must be reduced to simplified equ ...
40G QPSK and DQPSK Modulation
... maintaining signal quality. Optical communication systems have predominantly used some form of on/off keying (OOK) as a modulation format, namely NRZ or RZ modulation. As data rates increase, the inefficiency of these modulation formats from a bandwidth point of view is becoming more apparent. With ...
... maintaining signal quality. Optical communication systems have predominantly used some form of on/off keying (OOK) as a modulation format, namely NRZ or RZ modulation. As data rates increase, the inefficiency of these modulation formats from a bandwidth point of view is becoming more apparent. With ...
ECEN5817L38 - University of Colorado Boulder
... wave voltage. Phase-shifted control of converter output ECEN 5817 Resonant and Soft-Switching Techniques in Power Electronics ...
... wave voltage. Phase-shifted control of converter output ECEN 5817 Resonant and Soft-Switching Techniques in Power Electronics ...
Film Capacitors - AC Capacitors - Application Note
... The standard bidirectional asynchronous induction motors used in appliances such as washing machines have two windings: main and auxiliary. A run capacitor is needed to start the motor into the required direction by phase shift. Electromechanical switches are used to control it (on-off, direction of ...
... The standard bidirectional asynchronous induction motors used in appliances such as washing machines have two windings: main and auxiliary. A run capacitor is needed to start the motor into the required direction by phase shift. Electromechanical switches are used to control it (on-off, direction of ...
View
... the gas around the filament. When the bulb is in this condition, it will continue to function even though the heating current of the filament be discontinued,because the heat generated by the arc will besufficlent to insure the proper emission, but In this case the rectifier would not be self-stsrtI ...
... the gas around the filament. When the bulb is in this condition, it will continue to function even though the heating current of the filament be discontinued,because the heat generated by the arc will besufficlent to insure the proper emission, but In this case the rectifier would not be self-stsrtI ...
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.