High Precision PSR Constant Current LED Driver
... When LED short circuit is detected, the system works at minimum frequency (Fop=5KHz), so the power consumption is low. CS Resistor Short or Transformer Saturation In these catastrophic fault conditions, the internal fast fault detection circuit will trigger and latch, the system stops switching imme ...
... When LED short circuit is detected, the system works at minimum frequency (Fop=5KHz), so the power consumption is low. CS Resistor Short or Transformer Saturation In these catastrophic fault conditions, the internal fast fault detection circuit will trigger and latch, the system stops switching imme ...
Problem Set 4 SOLUTION
... Since it is in parallel with the resistor, it does at least measure the proper voltage. The ammeter measures the total current, however, since it is outside of the parallel circuit formed by the voltmeter and resistor. This means that the apparent resistance - the measured voltage divided by the mea ...
... Since it is in parallel with the resistor, it does at least measure the proper voltage. The ammeter measures the total current, however, since it is outside of the parallel circuit formed by the voltmeter and resistor. This means that the apparent resistance - the measured voltage divided by the mea ...
MAX15108A High-Efficiency, 8A, Current-Mode Synchronous Step-Down Switching Regulator General Description
... The MAX15108A high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches delivers up to 8A of output current. The regulator operates from 2.7V to 5.5V and provides an output voltage from 0.6V up to 95% of the input voltage, making the device ideal for dis ...
... The MAX15108A high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches delivers up to 8A of output current. The regulator operates from 2.7V to 5.5V and provides an output voltage from 0.6V up to 95% of the input voltage, making the device ideal for dis ...
Ground-Fault Protection and Ground-Conductor Monitoring
... impedance must be low to minimize ground-fault voltage and to avoid interference with ground-fault detection. A ground-conductor monitor is used to ensure the integrity of the grounding circuit external to the grounding resistor. Most ground-conductor monitors use a ground-check wire (included in th ...
... impedance must be low to minimize ground-fault voltage and to avoid interference with ground-fault detection. A ground-conductor monitor is used to ensure the integrity of the grounding circuit external to the grounding resistor. Most ground-conductor monitors use a ground-check wire (included in th ...
Lab 3
... 1) With no connection to the outputs, turn on the power supply by pressing the Power switch (1). After a self-check, the display will indicate OUTPUT OFF and show that the +6V supply is connected for metering (2). Select the +25V supply for metering by pressing the +25V button (3). The LED display w ...
... 1) With no connection to the outputs, turn on the power supply by pressing the Power switch (1). After a self-check, the display will indicate OUTPUT OFF and show that the +6V supply is connected for metering (2). Select the +25V supply for metering by pressing the +25V button (3). The LED display w ...
Using a multimeter to take measurements - SBSZ Jena
... Current I flows through all series loads which are connected one after the other or the electricity/current flows in a single path. That means: I = I1 = I2 = I3 = constant Each series load needs its own individual voltage. That means: Utotal = U1 + U2 + U3 + ... The total resistance of series connec ...
... Current I flows through all series loads which are connected one after the other or the electricity/current flows in a single path. That means: I = I1 = I2 = I3 = constant Each series load needs its own individual voltage. That means: Utotal = U1 + U2 + U3 + ... The total resistance of series connec ...
COMWAVE2
... Each of the voltage terms has its amplitude altered by a different amount; the phase, however, is changed by the same amount. The result is that the shape of the current waveform is different to that of the voltage waveform. In terms of phasors, since the impedance Z = V/I, then for each of the Four ...
... Each of the voltage terms has its amplitude altered by a different amount; the phase, however, is changed by the same amount. The result is that the shape of the current waveform is different to that of the voltage waveform. In terms of phasors, since the impedance Z = V/I, then for each of the Four ...
COIL DRIVER TEST REPORT
... To do this, we need to draw a known current from each coil drive output. This is done by plugging the 39 ohm loads into each output, then adjusting the signal generator until the required voltage appears across each load resistor. Remove all links W4 and W5. Plug the power 39 ohm dummy load plug int ...
... To do this, we need to draw a known current from each coil drive output. This is done by plugging the 39 ohm loads into each output, then adjusting the signal generator until the required voltage appears across each load resistor. Remove all links W4 and W5. Plug the power 39 ohm dummy load plug int ...
LT1812 - 3mA, 100MHz, 750V/µs Operational Amplifier with Shutdown
... Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Differential inputs of ± 3V are appropriate for transient operation ...
... Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Differential inputs of ± 3V are appropriate for transient operation ...
PL133-97 - Mouser Electronics
... and it offers the best phase noise, additive jitter performance, and lowest power consumption of any comparable IC. The PL133-97 outputs can be disabled to a high impedance (tri-state) by pulling low the OE pin. When the OE pin is high, the outputs are enabled and follow the REF input signal. When t ...
... and it offers the best phase noise, additive jitter performance, and lowest power consumption of any comparable IC. The PL133-97 outputs can be disabled to a high impedance (tri-state) by pulling low the OE pin. When the OE pin is high, the outputs are enabled and follow the REF input signal. When t ...
High Efficiency, Fast Transient Synchronous Step
... The COT control method uses the output ripple as feedback ramp signal (FB) to compare with a reference voltage signal (REF) to regulate the output voltage. A fast comparator is used in the control loop. Unlike current mode control and voltage mode control, COT control doesn’t employ an error amplifi ...
... The COT control method uses the output ripple as feedback ramp signal (FB) to compare with a reference voltage signal (REF) to regulate the output voltage. A fast comparator is used in the control loop. Unlike current mode control and voltage mode control, COT control doesn’t employ an error amplifi ...
A Study of CMOS Current Comparators in 180 nm Technology
... input currents Iin and Iref are mirrored using identical current mirrors into the transistor pair Mc3-Mc6. The current difference ( Idiff) equal to the difference between Iin and Iref. is hence generated from this stage which is given as input to the next stage for further comparator operation. The ...
... input currents Iin and Iref are mirrored using identical current mirrors into the transistor pair Mc3-Mc6. The current difference ( Idiff) equal to the difference between Iin and Iref. is hence generated from this stage which is given as input to the next stage for further comparator operation. The ...
Wilson current mirror
A Wilson current mirror is a three-terminal circuit (Fig. 1) that accepts an input current at the input terminal and provides a ""mirrored"" current source or sink output at the output terminal. The mirrored current is a precise copy of the input current. It may be used as a Wilson current source by applying a constant bias current to the input branch as in Fig. 2. The circuit is named after George R. Wilson, an integrated circuit design engineer who worked for Tektronix. Wilson devised this configuration in 1967 when he and Barrie Gilbert challenged each other to find an improved current mirror overnight that would use only three transistors. Wilson won the challenge.