ZXCT1010 - Diodes Incorporated
... current of 1.25A. Charge can be terminated on maximum voltage, selectable minimum current, or maximum time out, switching frequency of the PWM loop is approximately 120kHz. ...
... current of 1.25A. Charge can be terminated on maximum voltage, selectable minimum current, or maximum time out, switching frequency of the PWM loop is approximately 120kHz. ...
ADM692A 数据手册DataSheet 下载
... VOUT is normally used to drive a RAM memory bank which may require instantaneous currents of greater than 100 mA. If this is the case, then a bypass capacitor should be connected to VOUT. The capacitor will provide the peak current transients to the RAM. A capacitance value of 0.1 µF or greater may ...
... VOUT is normally used to drive a RAM memory bank which may require instantaneous currents of greater than 100 mA. If this is the case, then a bypass capacitor should be connected to VOUT. The capacitor will provide the peak current transients to the RAM. A capacitance value of 0.1 µF or greater may ...
The Impact of Power Switching Devices on the Thermal
... needed for the three device solutions are quite different: the IGBT module solution consumes up to 80% more device numbers than the other two press-pack solutions. This is mainly because of the maximum current rating limits for a single IGBT module. When taking into account the extra auxiliary parts ...
... needed for the three device solutions are quite different: the IGBT module solution consumes up to 80% more device numbers than the other two press-pack solutions. This is mainly because of the maximum current rating limits for a single IGBT module. When taking into account the extra auxiliary parts ...
LTC1348 - 3.3V/5V Low Power RS232 3-Driver/5
... can typically swing ±5V with voltages as low as 2.85V. It will meet the ±3.7V EIA562 levels with supply voltages as ...
... can typically swing ±5V with voltages as low as 2.85V. It will meet the ±3.7V EIA562 levels with supply voltages as ...
Investment and Licensing Opportunities now available.
... standard VFD’s, with the normal additions of the harmonic currents they produce, have true power factor that is typically in the 70% power factor range. To correct power factor in a VFD, filters must be installed to reduce the harmonics to acceptable levels. Further, they fail to tell you that the C ...
... standard VFD’s, with the normal additions of the harmonic currents they produce, have true power factor that is typically in the 70% power factor range. To correct power factor in a VFD, filters must be installed to reduce the harmonics to acceptable levels. Further, they fail to tell you that the C ...
SAA7706H Car radio Digital Signal Processor (DSP)
... (FM stereo decoder, RDS-demodulator and FM Interference Absorption Circuit (IAC) and are not freely ...
... (FM stereo decoder, RDS-demodulator and FM Interference Absorption Circuit (IAC) and are not freely ...
AP3156
... For the SDI command to be successfully received by the AP3156, all SDI timing specifications must be satisfied. When no command is being sent, the SDI pin should be held High. If the SDI pin goes Low and stays Low for a time length between TSLO(min) and TSLO(max) and then goes High and stays High fo ...
... For the SDI command to be successfully received by the AP3156, all SDI timing specifications must be satisfied. When no command is being sent, the SDI pin should be held High. If the SDI pin goes Low and stays Low for a time length between TSLO(min) and TSLO(max) and then goes High and stays High fo ...
MAX1115/MAX1116 Single-Supply, Low-Power, Serial 8-Bit ADCs General Description Features
... plot in the Typical Operating Characteristics section). The digital conversion result is maintained in a static register and is available for access through the serial interface at any time. ...
... plot in the Typical Operating Characteristics section). The digital conversion result is maintained in a static register and is available for access through the serial interface at any time. ...
- UTas ePrints
... excess energy of the DFIG during the fault condition. As it can be realized, the STFCL employed many power components in its structure, which limit the possibility of its practical implementation. The performance of the three types of bridge types FCL (BTFCL) is evaluated in [23] to enhance the LVRT ...
... excess energy of the DFIG during the fault condition. As it can be realized, the STFCL employed many power components in its structure, which limit the possibility of its practical implementation. The performance of the three types of bridge types FCL (BTFCL) is evaluated in [23] to enhance the LVRT ...
WARD LEONARD CONTROL SYSTEM
... The first Heilmann locomotive prototype was build during 1892-1893. This locomotive was an electrified steam locomotive which used a Ward Leonard drive system to control drive motors. A steam engine was the prime mover which ran the prime generator and the smaller exciting generator which produced t ...
... The first Heilmann locomotive prototype was build during 1892-1893. This locomotive was an electrified steam locomotive which used a Ward Leonard drive system to control drive motors. A steam engine was the prime mover which ran the prime generator and the smaller exciting generator which produced t ...
Detecting Broken Rotor Bars With Zero-Setting Protection
... to analyze the harmonic content of the stator currents when a motor has broken bars. The rotor cage portion of the model for a healthy motor consists of n identical and equally spaced current loops formed by two rotor bars and two end ring segments (see Fig. 2). Rb and Lb represent the resistance an ...
... to analyze the harmonic content of the stator currents when a motor has broken bars. The rotor cage portion of the model for a healthy motor consists of n identical and equally spaced current loops formed by two rotor bars and two end ring segments (see Fig. 2). Rb and Lb represent the resistance an ...
MAX14838/9 - Maxim Part Number Search
... The MAX14838/MAX14839 are pin-configurable. Logic inputs allow the driver to be configured for high-side (PNP), low-side (NPN), or push-pull operation. An additional input allows the user to select between normally-open and normally-closed logic. The MAX14838 features an onboard 5V linear regulator, ...
... The MAX14838/MAX14839 are pin-configurable. Logic inputs allow the driver to be configured for high-side (PNP), low-side (NPN), or push-pull operation. An additional input allows the user to select between normally-open and normally-closed logic. The MAX14838 features an onboard 5V linear regulator, ...
PQI Guide Spec 26 2200
... Factor), load harmonic spectrum including harmonic magnitudes and load %THDi. Nonlinear load testing programs that incorporate the use of capacitors, inductors, resistors, rectifiers, switch-mode power supplies or other electronic loads in an effort to simulate perceived, real world nonlinear load c ...
... Factor), load harmonic spectrum including harmonic magnitudes and load %THDi. Nonlinear load testing programs that incorporate the use of capacitors, inductors, resistors, rectifiers, switch-mode power supplies or other electronic loads in an effort to simulate perceived, real world nonlinear load c ...
Current Sensing Chip Resistors
... Current measurement is very important in power and instrumentation systems for circuit control, protection, monitoring, and performance enhancement. Engineers in power supply and battery circuit designs need to consider a give-and-take strategy between low resistance values to minimize power losses ...
... Current measurement is very important in power and instrumentation systems for circuit control, protection, monitoring, and performance enhancement. Engineers in power supply and battery circuit designs need to consider a give-and-take strategy between low resistance values to minimize power losses ...
MT-021: ADC Architectures II: Successive Approximation ADCs
... hardware factory calibrated and comprehensively tested to ensure such ac parameters as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity. ...
... hardware factory calibrated and comprehensively tested to ensure such ac parameters as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity. ...
Brushless DC Motor Unit - User`s Guide
... for any purpose other than its intended use. Use a direct current power supply with reinforced insulation between the primary and secondary circuits. The manufacturer shall not be held liable for the compensation of any damage caused as a result of neglecting this warning. The performance, specifica ...
... for any purpose other than its intended use. Use a direct current power supply with reinforced insulation between the primary and secondary circuits. The manufacturer shall not be held liable for the compensation of any damage caused as a result of neglecting this warning. The performance, specifica ...
application sizing guide
... Brushless DC (permanent magnet synchronous). Both have unique features and benefits. In some cases, based on the performance requirements of the application, only one particular technology of product will be appropriate. Other times, motor options or the features of the servo drive amplifier may dic ...
... Brushless DC (permanent magnet synchronous). Both have unique features and benefits. In some cases, based on the performance requirements of the application, only one particular technology of product will be appropriate. Other times, motor options or the features of the servo drive amplifier may dic ...
AN-873: Lock Detect on the ADF4xxx Family of
... When the phase error at the PFD inputs on five or more consecutive cycles is inside the 15 ns window, it considers the PLL to be in lock and outputs a logic high. When the phase error drifts outside of the loss of lock threshold (30 ns) on any subsequent PFD cycle, it registers an out-of-lock condit ...
... When the phase error at the PFD inputs on five or more consecutive cycles is inside the 15 ns window, it considers the PLL to be in lock and outputs a logic high. When the phase error drifts outside of the loss of lock threshold (30 ns) on any subsequent PFD cycle, it registers an out-of-lock condit ...
Power Supply Module 230 V MDP 102-1 1 Overview
... The servo drive is intended to control synchronous servo, linear, torque and asynchronous motors in closed loop control of torque, speed or position. The rated voltage of the motor must be at least as high as the setting of the mains input voltage (230 V) of the servo drive system. The servo drive i ...
... The servo drive is intended to control synchronous servo, linear, torque and asynchronous motors in closed loop control of torque, speed or position. The rated voltage of the motor must be at least as high as the setting of the mains input voltage (230 V) of the servo drive system. The servo drive i ...
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.