Computer Networks and Internets
... Fundamental Measures Of A Digital Transmission System Delay The ...
... Fundamental Measures Of A Digital Transmission System Delay The ...
SMF3.3 Datasheet
... lines in accordance with IEC 61000-4-2 •E FT protection of data lines in accordance with IEC 61000-4-4 •F ast response time: typically less than 1.0ns from 0 Volts to VBR min •H igh temperature soldering: 260°C/40 seconds at terminals • Built-in strain relief •M eet MSL level1, per J-STD-020 ...
... lines in accordance with IEC 61000-4-2 •E FT protection of data lines in accordance with IEC 61000-4-4 •F ast response time: typically less than 1.0ns from 0 Volts to VBR min •H igh temperature soldering: 260°C/40 seconds at terminals • Built-in strain relief •M eet MSL level1, per J-STD-020 ...
1, 2, or 3Ш – Linear AC Power Source
... With the ability to provide either single or two phase output, the 312AMX is a good choice to convert one-phase line voltage into precisely controlled split (two-phase) or three-phase output power. ...
... With the ability to provide either single or two phase output, the 312AMX is a good choice to convert one-phase line voltage into precisely controlled split (two-phase) or three-phase output power. ...
AC Motors - apolloteched / FrontPage
... – Inductive reactance affects current flow in the coils – The resistance of the coil to ac current flow requires greater ac voltages to develop motor torque and speed ...
... – Inductive reactance affects current flow in the coils – The resistance of the coil to ac current flow requires greater ac voltages to develop motor torque and speed ...
Single Stage 800 mA Converter with High Power Factor
... isolated power stage is that the feedback loop must have narrow bandwidth (< 40 Hz) otherwise the power factor would be low (capacitor C8 sets the bandwidth). As a consequence, the 120 Hz line ripple is propagated to the output and can only be filtered by the output capacitance. In this example 2,00 ...
... isolated power stage is that the feedback loop must have narrow bandwidth (< 40 Hz) otherwise the power factor would be low (capacitor C8 sets the bandwidth). As a consequence, the 120 Hz line ripple is propagated to the output and can only be filtered by the output capacitance. In this example 2,00 ...
HANDOUK SG RELAY Features Input: DC control Double SCR AC
... 240VAC, 380VAC, 480VAC versions. Input Voltage specifications have 3 to 15VDC, 15 to 32VDC and 3 to 32VDC. ...
... 240VAC, 380VAC, 480VAC versions. Input Voltage specifications have 3 to 15VDC, 15 to 32VDC and 3 to 32VDC. ...
SG RELAY Features Input: DC control Double SCR AC output or
... 240VAC, 380VAC, 480VAC versions. Input Voltage specifications have 3 to 15VDC, 15 to 32VDC and 3 to 32VDC. ...
... 240VAC, 380VAC, 480VAC versions. Input Voltage specifications have 3 to 15VDC, 15 to 32VDC and 3 to 32VDC. ...
369faq_b1 - GE Grid Solutions
... switch. If the 369 is still tripped, it will immediately retrip the lockout switch. Also, if the lockout switch is held reset, the high current draw of the lockout switch coil may cause damage to itself and/or the 369 output relay. ...
... switch. If the 369 is still tripped, it will immediately retrip the lockout switch. Also, if the lockout switch is held reset, the high current draw of the lockout switch coil may cause damage to itself and/or the 369 output relay. ...
Applications of the Piezoelectric Effect from Vibration
... Minimize power loss – used Schottky diodes ...
... Minimize power loss – used Schottky diodes ...
AC Measurements using Oscilloscope
... 6) From the CRO, measure the period T of the signal. To do so, measure (in divisions & subdivisions) the horizontal distance between two successive peaks or two successive points if they are in phase and multiply this distance by the reading of the ”TIME/DIV” button which is the scale of the time ax ...
... 6) From the CRO, measure the period T of the signal. To do so, measure (in divisions & subdivisions) the horizontal distance between two successive peaks or two successive points if they are in phase and multiply this distance by the reading of the ”TIME/DIV” button which is the scale of the time ax ...
SSM2142 数据手册DataSheet 下载
... 2. The ground input should be in close proximity to the singleended input’s source common. Ground offset errors encountered in the source circuitry also impair system performance. ...
... 2. The ground input should be in close proximity to the singleended input’s source common. Ground offset errors encountered in the source circuitry also impair system performance. ...
PQ Overview – Practical Aspect
... voltage dip in utility supply results in tripping of critical equipment and stoppage of process. However dips caused due to faults in power system can’t be avoided. In highly meshed integrated power network, faults in one part of system causes voltage dips in other neighbouring parts of system. The ...
... voltage dip in utility supply results in tripping of critical equipment and stoppage of process. However dips caused due to faults in power system can’t be avoided. In highly meshed integrated power network, faults in one part of system causes voltage dips in other neighbouring parts of system. The ...
New : The Physical Layer
... The cost of a wire is pretty much constant, independent of the bandwidth of that wire - costs come from installation and maintenance of the physical space (digging, etc.). So, how can we stuff more through that medium? The answer is : ...
... The cost of a wire is pretty much constant, independent of the bandwidth of that wire - costs come from installation and maintenance of the physical space (digging, etc.). So, how can we stuff more through that medium? The answer is : ...
P-Q theory based design of Unified Power Quality Conditioner for
... while for series dual PQ theory is used [2], [3]. Reference signals are then applied to pulse generators. Pulse generation is carried out by using hysteresis band controller for each filter. The validation of proposed scheme is carried out by using Matlab/Simulink. ...
... while for series dual PQ theory is used [2], [3]. Reference signals are then applied to pulse generators. Pulse generation is carried out by using hysteresis band controller for each filter. The validation of proposed scheme is carried out by using Matlab/Simulink. ...
牛顿环和劈尖
... sweep is a term referring to the action of the horizontal system causing the glowing dot to move across the screen. Triggering the horizontal system causes the horizontal time base to move the glowing dot across the screen from left to right within a specific time interval. Many sweeps in rapid sequ ...
... sweep is a term referring to the action of the horizontal system causing the glowing dot to move across the screen. Triggering the horizontal system causes the horizontal time base to move the glowing dot across the screen from left to right within a specific time interval. Many sweeps in rapid sequ ...
NCL30051LEDGEVB - 35-50 Volt, Up to 1.5 Amp, Offline
... junction temperature and the typical load power would be ~53 W which is over 100 lm/W. This application note also focuses on various options for dimming including PWM, analog and bi−level dimming. Intelligent dimming takes full advantage of the instant turn−on characteristics of LEDs and combines it ...
... junction temperature and the typical load power would be ~53 W which is over 100 lm/W. This application note also focuses on various options for dimming including PWM, analog and bi−level dimming. Intelligent dimming takes full advantage of the instant turn−on characteristics of LEDs and combines it ...
VM1AT-R1 - Instructions
... input voltage from 7 to 30 Vdc. You may use any value in this range without changing anything (you may need to retouch the converter’s trimpot to keep the output in the 4.75 to 5.35 V. range). INPUT LOGIG LEVEL. The nominal input voltage for the Digital Inputs is 24 Vdc. This voltage is reduced to ...
... input voltage from 7 to 30 Vdc. You may use any value in this range without changing anything (you may need to retouch the converter’s trimpot to keep the output in the 4.75 to 5.35 V. range). INPUT LOGIG LEVEL. The nominal input voltage for the Digital Inputs is 24 Vdc. This voltage is reduced to ...
Mid Semester Presentation - High Speed Digital Systems Laboratory
... 4-channel A/D (sampling buck/cuk outputs) 2-channel A/D (sampling sensed current & voltages) DAC (to LDOs and active load circuits) PWM (to buck converters) ...
... 4-channel A/D (sampling buck/cuk outputs) 2-channel A/D (sampling sensed current & voltages) DAC (to LDOs and active load circuits) PWM (to buck converters) ...
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.