MAX16801A/B/MAX16802A/B Offline and DC-DC PWM Controllers for High-Brightness LED Drivers General Description
... When in the bootstrapped mode with a transformer (Figure 5), the circuit is protected against most output short-circuit faults when the tertiary voltage drops below +10V, causing the UVLO to turn off the gate drive of the external MOSFET. This re-initiates a startup sequence with soft-start. When th ...
... When in the bootstrapped mode with a transformer (Figure 5), the circuit is protected against most output short-circuit faults when the tertiary voltage drops below +10V, causing the UVLO to turn off the gate drive of the external MOSFET. This re-initiates a startup sequence with soft-start. When th ...
BDTIC C C M - P F C
... Brown-out occurs when the input voltage VIN falls below the minimum input voltage of the design (i.e. 85V for universal input voltage range) and the VCC has not entered into the VCCUVLO level yet. For a system without IBOP, the boost converter will increasingly draw a higher current from the mains a ...
... Brown-out occurs when the input voltage VIN falls below the minimum input voltage of the design (i.e. 85V for universal input voltage range) and the VCC has not entered into the VCCUVLO level yet. For a system without IBOP, the boost converter will increasingly draw a higher current from the mains a ...
New Double Input DC-DC Converters for
... Mode I (M1: on / 2: off): Due to the conduction of M1, diode D1 is reverse biased and treated as an open circuit and o diode D2 provides a bypass path for inductor current In thisi2 M2 mode, V provides energy to inductor L and the load.D2 Mode II (M1: off / Al2: on): In this mode diode D1T conducts ...
... Mode I (M1: on / 2: off): Due to the conduction of M1, diode D1 is reverse biased and treated as an open circuit and o diode D2 provides a bypass path for inductor current In thisi2 M2 mode, V provides energy to inductor L and the load.D2 Mode II (M1: off / Al2: on): In this mode diode D1T conducts ...
PWM CONVERTERS WITH RESISTIVE INPUT
... input resistance (Re). Nominal value is assumed to be ReO and for any other operating condition Ye will change the input resistance so as to keep Yo at the desired level. For the conventional control scheme (Fig. 13a) Yin(av) is in fact a disturbance. However, due to the high loop gain provided by A ...
... input resistance (Re). Nominal value is assumed to be ReO and for any other operating condition Ye will change the input resistance so as to keep Yo at the desired level. For the conventional control scheme (Fig. 13a) Yin(av) is in fact a disturbance. However, due to the high loop gain provided by A ...
MAX1932 Digitally Controlled, 0.5% Accurate, Safest APD Bias Supply General Description
... Feedback can be taken from in front of, or after, the current-limit sense resistor. The current-limit sense resistor forms a lowpass filter with the output capacitor. Taking feedback after the current-limit sense resistor (see Figure 2), optimizes the output voltage accuracy, but requires overcompen ...
... Feedback can be taken from in front of, or after, the current-limit sense resistor. The current-limit sense resistor forms a lowpass filter with the output capacitor. Taking feedback after the current-limit sense resistor (see Figure 2), optimizes the output voltage accuracy, but requires overcompen ...
FEATURES FUNCTIONAL BLOCK DIAGRAM
... The ADN8810 is guaranteed with ± 4 LSB INL and ± 0.75 LSB DNL. Noise and digital feedthrough are kept low to ensure low jitter operation for laser diode applications. Full-scale and scaled output currents are given in Equations 1 and 2, ...
... The ADN8810 is guaranteed with ± 4 LSB INL and ± 0.75 LSB DNL. Noise and digital feedthrough are kept low to ensure low jitter operation for laser diode applications. Full-scale and scaled output currents are given in Equations 1 and 2, ...
Half stepping techniques
... constant torque over all positions. This can be done if the current level is increased to approximately 140% of the nominal two-phase-on current, in the half-step positions (i.e. 2, 4, 6, 8 in figures 1 and 2). This is done by changing the value of Rs and/or Vref. The currents in the two-phase-on po ...
... constant torque over all positions. This can be done if the current level is increased to approximately 140% of the nominal two-phase-on current, in the half-step positions (i.e. 2, 4, 6, 8 in figures 1 and 2). This is done by changing the value of Rs and/or Vref. The currents in the two-phase-on po ...
Strain gage
... Smith. Design the amplifier with a total differential gain of about 600, that is VO = 600(V1 − V2 ) (the differential gain of 30 is part of this). 3. Consider Wheatstone bridge in Figure 4 (ignore R1 and R2 initially). This simple four resistor circuit has been used for many years to convert a chang ...
... Smith. Design the amplifier with a total differential gain of about 600, that is VO = 600(V1 − V2 ) (the differential gain of 30 is part of this). 3. Consider Wheatstone bridge in Figure 4 (ignore R1 and R2 initially). This simple four resistor circuit has been used for many years to convert a chang ...
NRD1-6_Rev.0110 - pes-psrc
... the frequency and voltage of the generator. See: manual synchronizing system, semiautomatic synchronizing system, synchronizing relay, synchronism check relay. Breaker-and-a-half. A configuration of three circuit breakers in series between two buses with a line, transformer, generator or other circu ...
... the frequency and voltage of the generator. See: manual synchronizing system, semiautomatic synchronizing system, synchronizing relay, synchronism check relay. Breaker-and-a-half. A configuration of three circuit breakers in series between two buses with a line, transformer, generator or other circu ...
Exam IV_solns
... The next TWO problems refer to the circuit at right. There are two ideal batteries (voltage V each), and three identical ideal bulbs. Initially the capacitor is uncharged, and the switch is open. 10. Immediately after the switch is closed, the absolute value of the voltage difference across bulb #1 ...
... The next TWO problems refer to the circuit at right. There are two ideal batteries (voltage V each), and three identical ideal bulbs. Initially the capacitor is uncharged, and the switch is open. 10. Immediately after the switch is closed, the absolute value of the voltage difference across bulb #1 ...
Practical Problems
... This can be checked as, I1F.L.= (KVA x 1000)/V2 = (25 x 1000/110 = 227.272 A total copper loss = I12 R1 + I22 R2 = (11.3636)2 x 1.75 + (227.373)2 x 0.0045 = 225.98 + 232.4365 = 458.419 W ...
... This can be checked as, I1F.L.= (KVA x 1000)/V2 = (25 x 1000/110 = 227.272 A total copper loss = I12 R1 + I22 R2 = (11.3636)2 x 1.75 + (227.373)2 x 0.0045 = 225.98 + 232.4365 = 458.419 W ...
Solving the above equation we get
... impedance then becomes a pure real number and it is often referred to as the surge impedance. The propagation constant becomes a pure imaginary number. Defining the propagation constant as = j and replacing l by x we can rewrite (2.41) and (2.42) as V VR cos x jZC I R sin x ...
... impedance then becomes a pure real number and it is often referred to as the surge impedance. The propagation constant becomes a pure imaginary number. Defining the propagation constant as = j and replacing l by x we can rewrite (2.41) and (2.42) as V VR cos x jZC I R sin x ...
Datasheet
... such as optical power meters, competitive picoammeters, or user-designed solutions. With a price that’s comparable to a general purpose DMM, the Model 6485 makes picoamp-level measurements affordable for virtually any laboratory or production floor. Low Voltage Burden and Higher Accuracy While DMMs ...
... such as optical power meters, competitive picoammeters, or user-designed solutions. With a price that’s comparable to a general purpose DMM, the Model 6485 makes picoamp-level measurements affordable for virtually any laboratory or production floor. Low Voltage Burden and Higher Accuracy While DMMs ...
Phet circuit lab
... In order for the voltmeter to read the voltage or potential difference – Where do you have to have the voltmeter positioned? _____________________________ Why do you think this is so? _____________________ ...
... In order for the voltmeter to read the voltage or potential difference – Where do you have to have the voltmeter positioned? _____________________________ Why do you think this is so? _____________________ ...
View - LearnAid Publishing
... the works of others published under the CC-BY-SA and similar licences. In particular LearnAid Publishing drew on the works of: 1. FHSST Physics, a book created by the Free High School Science Texts (FHSST) initiative in South Africa. This was authored by Mark Horner ; Samuel Halliday ; Sarah Blyth ; ...
... the works of others published under the CC-BY-SA and similar licences. In particular LearnAid Publishing drew on the works of: 1. FHSST Physics, a book created by the Free High School Science Texts (FHSST) initiative in South Africa. This was authored by Mark Horner ; Samuel Halliday ; Sarah Blyth ; ...
This course contains - College of Micronesia
... Upon successful completion of this course the student will be able to: 1. Describe the basic concept of voltage and current and the behavior of these parameters in simple electrical circuits. 2. Explain the purpose and identify the various types of resistors and their symbols. Identify the value, po ...
... Upon successful completion of this course the student will be able to: 1. Describe the basic concept of voltage and current and the behavior of these parameters in simple electrical circuits. 2. Explain the purpose and identify the various types of resistors and their symbols. Identify the value, po ...
Is it the drive, the motor, or the load?
... motor in a short time, while a lower level of overload will take longer to trip the motor. When we want to evaluate the impact of a load on the motordrive system, we have to measure the current it draws. Of course, this current draw typically varies over time as the load varies. The measurement of c ...
... motor in a short time, while a lower level of overload will take longer to trip the motor. When we want to evaluate the impact of a load on the motordrive system, we have to measure the current it draws. Of course, this current draw typically varies over time as the load varies. The measurement of c ...
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.