EC_-_I_IMPORTANT_QUESTIONS_86623 - e
... 1. Explain the voltage divider bias method & derive an expression for stability factors. 2. Why biasing is necessary in BJT amplifier? Explain the concept of DC & AC load line with neat diagram. How will you select the operating point, explain it using CE amplifier characteristics? 3. Explain the co ...
... 1. Explain the voltage divider bias method & derive an expression for stability factors. 2. Why biasing is necessary in BJT amplifier? Explain the concept of DC & AC load line with neat diagram. How will you select the operating point, explain it using CE amplifier characteristics? 3. Explain the co ...
Introduction to Oscilloscopes: Lab Experiment
... There are many ways to specify digital oscilloscope performance, but the most important are bandwidth, rise time, sample rate, and record length. ...
... There are many ways to specify digital oscilloscope performance, but the most important are bandwidth, rise time, sample rate, and record length. ...
MAX1575 White LED 1x/1.5x Charge Pump for Main and Sub-Displays General Description
... the sub-display with regulated constant current for uniform intensity. By utilizing adaptive 1x/1.5x chargepump modes and very-low-dropout current regulators, it achieves high efficiency over the full 1-cell lithiumbattery input voltage range. A 1MHz fixed-frequency switching allows for tiny externa ...
... the sub-display with regulated constant current for uniform intensity. By utilizing adaptive 1x/1.5x chargepump modes and very-low-dropout current regulators, it achieves high efficiency over the full 1-cell lithiumbattery input voltage range. A 1MHz fixed-frequency switching allows for tiny externa ...
Modeling and analysis of harmonic resonance in a power
... or subsystems on the system stability is usually hidden in the state matrix. In [12], the Component Connection Method (CCM) that takes advantage of matrix algebra and sparsity is introduced for the stability analysis of the High-Voltage DC (HVDC) systems. Unlike the general state-space models, the C ...
... or subsystems on the system stability is usually hidden in the state matrix. In [12], the Component Connection Method (CCM) that takes advantage of matrix algebra and sparsity is introduced for the stability analysis of the High-Voltage DC (HVDC) systems. Unlike the general state-space models, the C ...
a AN-369 APPLICATION NOTE
... junction is electrically isolated, then Pin 1 of the IC should be connected to Pin 4, the power supply common. In some applications, tying the thermocouple directly to common is not possible. A resistor from Pin 1 to common will satisfy the bias current return path but will, however, generate an add ...
... junction is electrically isolated, then Pin 1 of the IC should be connected to Pin 4, the power supply common. In some applications, tying the thermocouple directly to common is not possible. A resistor from Pin 1 to common will satisfy the bias current return path but will, however, generate an add ...
ELAB-080 DLL library description
... Switch: Send “0” to turn off the programmable clocks, “1” to turn on. FrequencyX: Send a frequency, in Hz, from 1000 to 150MHz to set channel X to the closest possible frequency FreqXActual: Returns the actual frequency set. It’s not possible to hit every frequency requested exactly given the Elab’s ...
... Switch: Send “0” to turn off the programmable clocks, “1” to turn on. FrequencyX: Send a frequency, in Hz, from 1000 to 150MHz to set channel X to the closest possible frequency FreqXActual: Returns the actual frequency set. It’s not possible to hit every frequency requested exactly given the Elab’s ...
A 1.2 V, 0.84 pJ/Conv.-Step Ultra-low Power Capacitance to Digital
... recording over a nyquist bandwidth of 4 kHz, the modulator is designed for an OSR of 125 with a 1MHz sampling clock. III. CIRCUIT IMPLEMENTATION OF THE PROPOSED CDC A. Schematic of the proposed CDC The schematic implementation of the proposed CDC is shown in Fig. 4. Two single-ended capacitive senso ...
... recording over a nyquist bandwidth of 4 kHz, the modulator is designed for an OSR of 125 with a 1MHz sampling clock. III. CIRCUIT IMPLEMENTATION OF THE PROPOSED CDC A. Schematic of the proposed CDC The schematic implementation of the proposed CDC is shown in Fig. 4. Two single-ended capacitive senso ...
SEMITOP 3 Power Board
... Application Note was written for TRIAC, the isolation constraints still apply for fast switching semiconductor devices such as IGBTs.) ...
... Application Note was written for TRIAC, the isolation constraints still apply for fast switching semiconductor devices such as IGBTs.) ...
Clock circuit - CS Course Webpages
... The network interface is handled by DP83902AV, a networking chip, and CCM9052, a twisted-pair interface (TPI) connection, an RJ45 connector. The networking chip provides Ethernet protocol through pins 54-57 and 61-62 to pins 1-2, 4-5, and 7-8 of the TPI. Signals TXO+ and TXO- of the network chip are ...
... The network interface is handled by DP83902AV, a networking chip, and CCM9052, a twisted-pair interface (TPI) connection, an RJ45 connector. The networking chip provides Ethernet protocol through pins 54-57 and 61-62 to pins 1-2, 4-5, and 7-8 of the TPI. Signals TXO+ and TXO- of the network chip are ...
Lecture 12
... produce a voltage which is always positive, but varies with time • In order to power electronic devices, we need to smooth out the variations with time. • Another way to look at this is that we need to store energy temporarily while the input voltage changes sign. ...
... produce a voltage which is always positive, but varies with time • In order to power electronic devices, we need to smooth out the variations with time. • Another way to look at this is that we need to store energy temporarily while the input voltage changes sign. ...
MX856/MX857
... IXYS Integrated Circuits Division makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses nor ...
... IXYS Integrated Circuits Division makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses nor ...
REF02 数据资料 dataSheet 下载
... can achieve 5V, 15V, and 25V outputs. One very important advantage of this circuit is the near-perfect line regulation at 5V and 15V outputs. This circuit can accept a 27V to 55V change to the input with less than the noise voltage as a change to the output voltage. RB, a load bypass resistor, suppl ...
... can achieve 5V, 15V, and 25V outputs. One very important advantage of this circuit is the near-perfect line regulation at 5V and 15V outputs. This circuit can accept a 27V to 55V change to the input with less than the noise voltage as a change to the output voltage. RB, a load bypass resistor, suppl ...
LT8310 - 100Vin Forward Converter Controller
... ≥ 1V. After an overcurrent shutdown, the pin sources only 5µA until VSS ≥ 1V, which provides an extended wake-up period that reduces power dissipation during repeated start-up retries (hiccup mode). Switching frequency and duty cycle are folded back until SS > 2.5V. Above 1V, the pin sources 50µA un ...
... ≥ 1V. After an overcurrent shutdown, the pin sources only 5µA until VSS ≥ 1V, which provides an extended wake-up period that reduces power dissipation during repeated start-up retries (hiccup mode). Switching frequency and duty cycle are folded back until SS > 2.5V. Above 1V, the pin sources 50µA un ...
MAX17595/MAX17596/MAX17597 Peak-Current-Mode Controllers for Flyback and Boost Regulators General Description
... flyback and boost regulators. The MAX17595 offers optimized input thresholds for universal input AC-DC converters and telecom DC-DC (36V to 72V input range) power supplies. The MAX17596/MAX17597 offer input thresholds suitable for low-voltage DC-DC applications (4.5V to 36V). The MAX17597 implements ...
... flyback and boost regulators. The MAX17595 offers optimized input thresholds for universal input AC-DC converters and telecom DC-DC (36V to 72V input range) power supplies. The MAX17596/MAX17597 offer input thresholds suitable for low-voltage DC-DC applications (4.5V to 36V). The MAX17597 implements ...
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.