- sir cr reddy college of engineering
... Describe with connection diagrams the test to be done on a single phase T/F to determine the equivalent circuit parameters. b)a 20 KVA, 2500/250V, 50HZ,1-PHASE transformer has the following results: OC TEST: 250V, 1.4A, 105W SC TEST: 104V, 8A, 320W calculate the efficiency at full load and 0.8 pf la ...
... Describe with connection diagrams the test to be done on a single phase T/F to determine the equivalent circuit parameters. b)a 20 KVA, 2500/250V, 50HZ,1-PHASE transformer has the following results: OC TEST: 250V, 1.4A, 105W SC TEST: 104V, 8A, 320W calculate the efficiency at full load and 0.8 pf la ...
- sir cr reddy college of engineering
... Describe with connection diagrams the test to be done on a single phase T/F to determine the equivalent circuit parameters. b)a 20 KVA, 2500/250V, 50HZ,1-PHASE transformer has the following results: OC TEST: 250V, 1.4A, 105W SC TEST: 104V, 8A, 320W calculate the efficiency at full load and 0.8 pf la ...
... Describe with connection diagrams the test to be done on a single phase T/F to determine the equivalent circuit parameters. b)a 20 KVA, 2500/250V, 50HZ,1-PHASE transformer has the following results: OC TEST: 250V, 1.4A, 105W SC TEST: 104V, 8A, 320W calculate the efficiency at full load and 0.8 pf la ...
RURG5060_F085 50A, 600V Ultrafast Rectifier RURG5060_F085 50A, 600V Features
... The RURG5060_F085 is an ultrafast diode with soft recovery characteristics (trr< 90ns). It has low forward voltage drop and is silicon nitride passivated ionimplanted epitaxial planar construction. This device is intended for use as a freewheeling/clamping diode and rectifier in a variety of switchi ...
... The RURG5060_F085 is an ultrafast diode with soft recovery characteristics (trr< 90ns). It has low forward voltage drop and is silicon nitride passivated ionimplanted epitaxial planar construction. This device is intended for use as a freewheeling/clamping diode and rectifier in a variety of switchi ...
MAX1760/MAX1760H 0.8A, Low-Noise, 1MHz, Step-Up DC-DC Converter General Description
... Note 4: The regulator is in startup mode until this voltage is reached. Do not apply full load current until the output exceeds 2.3V. Note 5: Supply current into the OUT pin. This current correlates directly to the actual battery-supply current, but is reduced in value according to the step-up ratio ...
... Note 4: The regulator is in startup mode until this voltage is reached. Do not apply full load current until the output exceeds 2.3V. Note 5: Supply current into the OUT pin. This current correlates directly to the actual battery-supply current, but is reduced in value according to the step-up ratio ...
UCC281-5 数据资料 dataSheet 下载
... When an overload situation is detected, the device enters a pulsed mode of operation at 3% duty cycle reducing the heat sink requirements during a fault. The UCC381 has two current thresholds that determine its behavior during a fault as shown in Fig. 1. When the regulator current exceeds the Overcu ...
... When an overload situation is detected, the device enters a pulsed mode of operation at 3% duty cycle reducing the heat sink requirements during a fault. The UCC381 has two current thresholds that determine its behavior during a fault as shown in Fig. 1. When the regulator current exceeds the Overcu ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... system. If all of the cells are clocked synchronously, as illustrated in Fig. 2(a) for a two-cell system, then the system behaves exactly as a single large converter. However, it can be shown that if the cells are clocked independently (and hence operate at slightly different frequencies) as shown i ...
... system. If all of the cells are clocked synchronously, as illustrated in Fig. 2(a) for a two-cell system, then the system behaves exactly as a single large converter. However, it can be shown that if the cells are clocked independently (and hence operate at slightly different frequencies) as shown i ...
High Performance Portable DC Bench Power Supply
... The key component to the supply is the LT3081 linear regulator surrounded by a short list of easy-to-get components. The LT3081’s unique current-source reference and voltage-follower output amplifier make it possible to connect two linear regulators in parallel for up to 3A and over 24V of adjustabl ...
... The key component to the supply is the LT3081 linear regulator surrounded by a short list of easy-to-get components. The LT3081’s unique current-source reference and voltage-follower output amplifier make it possible to connect two linear regulators in parallel for up to 3A and over 24V of adjustabl ...
MAX1801 Digital Camera Step-Up Slave DC-DC Controller General Description
... due to an output short circuit. If the output voltage drops out of regulation, the voltage at COMP is clamped at 2.7V. If this condition is maintained for 1024 oscillator clock periods at any time following soft-start, the MAX1801 is disabled to prevent excessive output current. Restart the controll ...
... due to an output short circuit. If the output voltage drops out of regulation, the voltage at COMP is clamped at 2.7V. If this condition is maintained for 1024 oscillator clock periods at any time following soft-start, the MAX1801 is disabled to prevent excessive output current. Restart the controll ...
iLumin System Written Specification (PDF Doc)
... 2. Utilize universal 16A continuous-use dimmer listed to UL508. 3. Limit current rise time to minimum 350 µsec as measured from 10-90 percent of load current waveform at full dimmer capacity at a 90 degree conduction angle. 4. Load faults only affect the given circuit. 5. Ship panels with each dimme ...
... 2. Utilize universal 16A continuous-use dimmer listed to UL508. 3. Limit current rise time to minimum 350 µsec as measured from 10-90 percent of load current waveform at full dimmer capacity at a 90 degree conduction angle. 4. Load faults only affect the given circuit. 5. Ship panels with each dimme ...
Quad DMOS Full Bridge PWM Motor Driver A3988
... Each full-bridge is controlled by a fixed off-time PWM current control circuit that limits the load current to a desired value, ITRIP . Initially, a diagonal pair of source and sink DMOS outputs are enabled and current flows through the motor winding and RSx. When the voltage across the current sens ...
... Each full-bridge is controlled by a fixed off-time PWM current control circuit that limits the load current to a desired value, ITRIP . Initially, a diagonal pair of source and sink DMOS outputs are enabled and current flows through the motor winding and RSx. When the voltage across the current sens ...
Advances in Natural and Applied Sciences
... instability is mainly associated with reactive power imbalance (Mehrdad et al 2009) . The bus load ability in the power system depends on the reactive power support, which that bus can receive from the system. If the utility reaches the maximum load point (or) voltage collapse point, reactive power ...
... instability is mainly associated with reactive power imbalance (Mehrdad et al 2009) . The bus load ability in the power system depends on the reactive power support, which that bus can receive from the system. If the utility reaches the maximum load point (or) voltage collapse point, reactive power ...
TPS60140 数据资料 dataSheet 下载
... a limited current until the output voltage(VO) reaches 0.8 x VI. When the start-up comparator detects this voltage limit, the IC begins switching. This pre-charging of the output capacitor ensures a short start-up time. In addition, the inrush current into an empty output capacitor is limited becaus ...
... a limited current until the output voltage(VO) reaches 0.8 x VI. When the start-up comparator detects this voltage limit, the IC begins switching. This pre-charging of the output capacitor ensures a short start-up time. In addition, the inrush current into an empty output capacitor is limited becaus ...
High Speed CMOS Optocouplers Technical Data H
... 1. The LED is OFF when the VI is high and ON when VI is low. 2. Device considered a two terminal device; pins 1-4 shorted together and pins 5-8 shorted together. 3. In accordance with UL 1577, for devices with minimum VISO specified at 3750 V rms, each optocoupler is proof-tested by applying an insu ...
... 1. The LED is OFF when the VI is high and ON when VI is low. 2. Device considered a two terminal device; pins 1-4 shorted together and pins 5-8 shorted together. 3. In accordance with UL 1577, for devices with minimum VISO specified at 3750 V rms, each optocoupler is proof-tested by applying an insu ...
2.5 low-voltage wall stations
... 2. Utilize universal 16A continuous-use dimmer listed to UL508. 3. Limit current rise time to minimum 350 µsec as measured from 10-90 percent of load current waveform at full dimmer capacity at a 90 degree conduction angle. 4. Load faults only affect the given circuit. 5. Ship panels with each dimme ...
... 2. Utilize universal 16A continuous-use dimmer listed to UL508. 3. Limit current rise time to minimum 350 µsec as measured from 10-90 percent of load current waveform at full dimmer capacity at a 90 degree conduction angle. 4. Load faults only affect the given circuit. 5. Ship panels with each dimme ...
Analog Electronic Volt-Ohm
... voltmeter should not have one of its terminals grounded. For the circuit in Figure 4-2 to function correctly, the lower end of RI must be at zero volts with respect to +Vcc and -Vee. The + and - supply voltage may be derived from two batteries [Figure 4-3(b)] or from two de power supply circuits [Fi ...
... voltmeter should not have one of its terminals grounded. For the circuit in Figure 4-2 to function correctly, the lower end of RI must be at zero volts with respect to +Vcc and -Vee. The + and - supply voltage may be derived from two batteries [Figure 4-3(b)] or from two de power supply circuits [Fi ...
2.5A - SynQor
... to turn off when the input voltage is too low, helping avoid an input system instability problem, described in more detail in the application note titled “Input System Instability” on our website. The lockout circuitry is a comparator with dc hysteresis. When the input voltage is rising, it must exc ...
... to turn off when the input voltage is too low, helping avoid an input system instability problem, described in more detail in the application note titled “Input System Instability” on our website. The lockout circuitry is a comparator with dc hysteresis. When the input voltage is rising, it must exc ...
LP3997 Micropower 250mA CMOS LDO Regulator with Error Flag
... The value of ceramic capacitors can vary with temperature. The capacitor type X7R, which operates over a temperature range of -55˚C to +125˚C, will only vary the capacitance to within ± 15%. The capacitor type X5R has a similar tolerance over a reduced temperature range of -55˚C to +85˚C. Most large ...
... The value of ceramic capacitors can vary with temperature. The capacitor type X7R, which operates over a temperature range of -55˚C to +125˚C, will only vary the capacitance to within ± 15%. The capacitor type X5R has a similar tolerance over a reduced temperature range of -55˚C to +85˚C. Most large ...
MAX1582/MAX1582Y High-Efficiency Step-Up Converters for White LED Main and Subdisplay Backlighting General Description
... The MAX1582’s high efficiency and small size make it ideally suited to drive up to six series-connected LEDs (four LEDs for the MAX1582Y). Separate enable inputs are provided to control the main and subdisplay backlighting. The MAX1582/MAX1582Y operate as a boost DC-to-DC converter that regulates ou ...
... The MAX1582’s high efficiency and small size make it ideally suited to drive up to six series-connected LEDs (four LEDs for the MAX1582Y). Separate enable inputs are provided to control the main and subdisplay backlighting. The MAX1582/MAX1582Y operate as a boost DC-to-DC converter that regulates ou ...
Impulse Voltage Generators 100 kV up to 1200 kV
... stages to maximum output voltages of 1150 kV (LI) and 900 kV (SI) in the no-load case. The generators can be modified for carrying out a variety of special tests, e.g. on transformers, impulse current testing of surge arresters as well as EMP tests of electrical equipment. The chosen modular system ...
... stages to maximum output voltages of 1150 kV (LI) and 900 kV (SI) in the no-load case. The generators can be modified for carrying out a variety of special tests, e.g. on transformers, impulse current testing of surge arresters as well as EMP tests of electrical equipment. The chosen modular system ...
ECE3155_Ex_3_Diodes
... approximation techniques used to solve circuits that include diodes. A brief overview is included here for reference. The most accurate diode approximation method makes use of the exponential diode equation. This equation takes into account such important effects as temperature and diode materials, ...
... approximation techniques used to solve circuits that include diodes. A brief overview is included here for reference. The most accurate diode approximation method makes use of the exponential diode equation. This equation takes into account such important effects as temperature and diode materials, ...
Current source
A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.