A simple way to test buck converter stability
... Richtek ACOT™ converters don’t have an error amplifier as they operate in ripple based hysteretic control mode. ACOT converters can show ringing in load step due to insufficient damping of the hysteretic control loop. This often happens in applications with higher output voltage or high duty-cycles. ...
... Richtek ACOT™ converters don’t have an error amplifier as they operate in ripple based hysteretic control mode. ACOT converters can show ringing in load step due to insufficient damping of the hysteretic control loop. This often happens in applications with higher output voltage or high duty-cycles. ...
Automotive Qualified AUIRS2117S and AUIRS2118S Deliver
... signal and CMOS Schmitt-triggered inputs with pull-down. • The AUIRS2118S features output signals out of phase with the input signal and CMOS Schmitt-triggered inputs with pull-up. • The new ICs feature proprietary high-voltage integrated circuit (HVIC) and latch immune CMOS technologies to offer ru ...
... signal and CMOS Schmitt-triggered inputs with pull-down. • The AUIRS2118S features output signals out of phase with the input signal and CMOS Schmitt-triggered inputs with pull-up. • The new ICs feature proprietary high-voltage integrated circuit (HVIC) and latch immune CMOS technologies to offer ru ...
Designing Wide Range Power Supplies for Three Phase Industrial
... that is configured as a flyback, to leverage its 66 kHz switching frequency. This reduces switching losses and improves efficiency. The IC’s ON/OFF control regulates the output by skipping switching cycles. As the load is reduced, the effective switching frequency decreases, scaling the switching lo ...
... that is configured as a flyback, to leverage its 66 kHz switching frequency. This reduces switching losses and improves efficiency. The IC’s ON/OFF control regulates the output by skipping switching cycles. As the load is reduced, the effective switching frequency decreases, scaling the switching lo ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676
... A vital factor that determines the size and the cost of a converter is its operation frequency. In order to minimize the size and the cost, the frequency has to be maximized. However, higher frequencies result in the increase of transistor switching losses, and thus, the converter’s effectiveness is ...
... A vital factor that determines the size and the cost of a converter is its operation frequency. In order to minimize the size and the cost, the frequency has to be maximized. However, higher frequencies result in the increase of transistor switching losses, and thus, the converter’s effectiveness is ...
Lab02-GL Rev. 2 - geek @ EE @ NMT
... Attach the nulling circuitry, describe how to use it to null the output, and show that you can null the offset voltage. ...
... Attach the nulling circuitry, describe how to use it to null the output, and show that you can null the offset voltage. ...
Zener diode voltage regulator File
... One of the simplest implementations of this concept is to use a single pass transistor in the form of an emitter follower configuration, and a single Zener diode drive by a resistor from the unregulated supply. This provides a simple form of feedback system to ensure the Zener voltage is maintained ...
... One of the simplest implementations of this concept is to use a single pass transistor in the form of an emitter follower configuration, and a single Zener diode drive by a resistor from the unregulated supply. This provides a simple form of feedback system to ensure the Zener voltage is maintained ...
Functions of Electrical Transformer
... Functions of Electrical Transformer Electrical transformers are used to "transform" voltage from one level to another, usually from a higher voltage to a lower voltage. They do this by applying the principle of magnetic induction between coils to convert voltage and or current levels. In this way, e ...
... Functions of Electrical Transformer Electrical transformers are used to "transform" voltage from one level to another, usually from a higher voltage to a lower voltage. They do this by applying the principle of magnetic induction between coils to convert voltage and or current levels. In this way, e ...
Chris Barth / Martin Lopez-Guerra Belzunce / Marcos Javier Yusta
... High specific power density electric machines typically employ non-metallic materials instead of iron, which consequently decreases the machine’s winding inductance. Since the low reactance windings cannot effectively filter PWM voltage waveforms, we propose a flying capacitor multilevel (FCML) inve ...
... High specific power density electric machines typically employ non-metallic materials instead of iron, which consequently decreases the machine’s winding inductance. Since the low reactance windings cannot effectively filter PWM voltage waveforms, we propose a flying capacitor multilevel (FCML) inve ...
AN9008 Introduction The Use of QFETs in a Flyback Converter
... Figure 3 shows the design of a commercially available 60 watt flyback converter with two outputs (+160V, +15V), operating at a switching frequency of 80kHz and an input voltage of 220VAC. This type of switching power supply is used for applications, such as monitors, TVs, and miscellaneous instrumen ...
... Figure 3 shows the design of a commercially available 60 watt flyback converter with two outputs (+160V, +15V), operating at a switching frequency of 80kHz and an input voltage of 220VAC. This type of switching power supply is used for applications, such as monitors, TVs, and miscellaneous instrumen ...
Week 7: Motor Control Basics
... Also, digital nature of PWM signal makes it more efficient to control current to motor than linear methods (compare to a variable resistor) ...
... Also, digital nature of PWM signal makes it more efficient to control current to motor than linear methods (compare to a variable resistor) ...
Chap 6
... 6.27 The two series-connected capacitors in Fig. P6.27 are connected to the terminals of a black box at t = 0. The resulting current i(t) for t > 0 is known to be 20e–t μA. a) Replace the original capacitors with an equivalent capacitor and find υo(t) for t ≥ 0. b) Find υ1(t) for t ≥ 0. c) Find υ2( ...
... 6.27 The two series-connected capacitors in Fig. P6.27 are connected to the terminals of a black box at t = 0. The resulting current i(t) for t > 0 is known to be 20e–t μA. a) Replace the original capacitors with an equivalent capacitor and find υo(t) for t ≥ 0. b) Find υ1(t) for t ≥ 0. c) Find υ2( ...
UFC SERIES PwrKartTM 400 Hz AND 270 VDC
... Built-In Test Equipment (BITE) and modular construction, Unitron products assure maximum power availability and minimal repair time for the latest military aircraft including the F-22A Raptor and the JSF F-35A. The PwrKart™ Series includes lightweight 115/200 VAC, 400 Hz, 28 VDC, and 270VDC mobile c ...
... Built-In Test Equipment (BITE) and modular construction, Unitron products assure maximum power availability and minimal repair time for the latest military aircraft including the F-22A Raptor and the JSF F-35A. The PwrKart™ Series includes lightweight 115/200 VAC, 400 Hz, 28 VDC, and 270VDC mobile c ...
AH58-59-68
... These sensor are an integrated Hall sensor with output driver designed for electronic commutation of brushless DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, and a Schmitt trigger to provide switching h ...
... These sensor are an integrated Hall sensor with output driver designed for electronic commutation of brushless DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, and a Schmitt trigger to provide switching h ...
Buck converter
A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.