AMS4155 数据手册DataSheet 下载
... is connected between LX and BST pins to form a floating supply across the power switch driver. The voltage across Cbst is about 5V and is supplied by the internal Vcc supply when LX pin voltage is low. ...
... is connected between LX and BST pins to form a floating supply across the power switch driver. The voltage across Cbst is about 5V and is supplied by the internal Vcc supply when LX pin voltage is low. ...
DC-voltage doubler reaches 96% power efficiency
... protective subcircuit, is RL≤m2×(α/(1−α))×Rp, where the multiplication factor m=(VOUT/VIN) and α is a fraction of VOUT, at which the soft start turns off. For m=2, α=0.8, and Rp=10Ω, RL is 160Ω. Thus, loads of 160Ω or less will overload the circuit if you connect them to the circuit’s output before ...
... protective subcircuit, is RL≤m2×(α/(1−α))×Rp, where the multiplication factor m=(VOUT/VIN) and α is a fraction of VOUT, at which the soft start turns off. For m=2, α=0.8, and Rp=10Ω, RL is 160Ω. Thus, loads of 160Ω or less will overload the circuit if you connect them to the circuit’s output before ...
Powerful PWM buck controllers in 8-pin package
... The L6726A and L6727 allow simple, cost effective design of complete stepdown voltage regulators. They provide a full solution by integrating a 0.8V reference, control logic and protection, and NMOS drivers in an 8-pin package. The supply voltage ranges from 5V to 12V, and the power rail can be as ...
... The L6726A and L6727 allow simple, cost effective design of complete stepdown voltage regulators. They provide a full solution by integrating a 0.8V reference, control logic and protection, and NMOS drivers in an 8-pin package. The supply voltage ranges from 5V to 12V, and the power rail can be as ...
AdvancedTCA Hot Swap Controller Monitors Power Distribution Design Note 397 Mitchell Lee
... The accepted method of energy storage to satisfy the 1J requirement is a bulk reservoir capacitor which is charged through resistors. This technique dictates the use of bulky high voltage storage capacitors, such as 100V (or rare 80V) rated units which can handle the maximum input voltage of 75V. Si ...
... The accepted method of energy storage to satisfy the 1J requirement is a bulk reservoir capacitor which is charged through resistors. This technique dictates the use of bulky high voltage storage capacitors, such as 100V (or rare 80V) rated units which can handle the maximum input voltage of 75V. Si ...
EUP3412 1.5A/1.5MHz, Synchronous Step-Down Converter with Soft Start
... (P-Channel MOSFET) and synchronous (N-channel MOSFET) switches are internal. During normal operation, the EUP3412 regulates output voltage by switching at a constant frequency and then modulating the power transferred to the load each cycle using PWM comparator. The duty cycle is controlled by three ...
... (P-Channel MOSFET) and synchronous (N-channel MOSFET) switches are internal. During normal operation, the EUP3412 regulates output voltage by switching at a constant frequency and then modulating the power transferred to the load each cycle using PWM comparator. The duty cycle is controlled by three ...
Test Procedure for the NCP5603 Evaluation Board 10.5.2004
... Test Procedure for the NCP5603 Evaluation Board ...
... Test Procedure for the NCP5603 Evaluation Board ...
Power Transformers
... voltage and unity PF. Find the armature resistance and synchronous reactance given that the filed excitation voltage is 11935.44 V and leads the terminal voltage by an angle 47.96°. ...
... voltage and unity PF. Find the armature resistance and synchronous reactance given that the filed excitation voltage is 11935.44 V and leads the terminal voltage by an angle 47.96°. ...
G205 Design of Buck Converter For Photovoltaic System Applications
... electronics componentssuch asMOSFETs. Operatingmodebuck converterconsistsof two types ofcontinuousanddiscontinuous. ...
... electronics componentssuch asMOSFETs. Operatingmodebuck converterconsistsof two types ofcontinuousanddiscontinuous. ...
Solid State Relais
... A Solid State Relay is actually not a relay at all. There is no 'relay' present, just the electronics which does the switching. It works the same way as a relay; you can use a low voltage to switch a higher voltage or better. This 'relay' is positioned in between one of the 115/220V AC wires althoug ...
... A Solid State Relay is actually not a relay at all. There is no 'relay' present, just the electronics which does the switching. It works the same way as a relay; you can use a low voltage to switch a higher voltage or better. This 'relay' is positioned in between one of the 115/220V AC wires althoug ...
Oct - Directorate General of Shipping
... (a) reduce the voltage applied to the motor during the starting period (b) increase the volt age for "across-the-line starting" (c) provide a backup means of voltage regulation for emergency starting (d) allow the voltage to be either stepped up or down, depending on the application, to ensure full ...
... (a) reduce the voltage applied to the motor during the starting period (b) increase the volt age for "across-the-line starting" (c) provide a backup means of voltage regulation for emergency starting (d) allow the voltage to be either stepped up or down, depending on the application, to ensure full ...
AND8291/D >85% Efficient 12 to 5 VDC Buck Converter
... The selection of the timing capacitor CT (C4) and feedforward resistor R6 is discussed next. Assuming no circuit losses, the transfer function or gain of this application is 0.42 and is also 0.42. Referring to Table1, a 3:1 ratio for the external charging current to internal charging current would ...
... The selection of the timing capacitor CT (C4) and feedforward resistor R6 is discussed next. Assuming no circuit losses, the transfer function or gain of this application is 0.42 and is also 0.42. Referring to Table1, a 3:1 ratio for the external charging current to internal charging current would ...
op-amp amplifier - IHMC Public Cmaps (3)
... high input impedance, and low output impedance is called an operational amplifier. ...
... high input impedance, and low output impedance is called an operational amplifier. ...
DC1664 - LTC3109EUF Evaluation Kit Quick Start Guide
... the average source power integrated over the accumulation time between bursts. The Demonstration Circuit has been set up with a storage capacitor that makes it easy to evaluate the general functionality of the circuit. The lower value capacitor allows for a fast charge time but limits the pulsed ene ...
... the average source power integrated over the accumulation time between bursts. The Demonstration Circuit has been set up with a storage capacitor that makes it easy to evaluate the general functionality of the circuit. The lower value capacitor allows for a fast charge time but limits the pulsed ene ...
This paper suggests a new electrolytic capacitor-less bi
... isolation between the source and load side is provided by the high-frequency transformer. Transformer also performs voltage matching between the source and the load side since the voltage ratio between them is very high. The transformer works with ac quantities and hence a dc-ac converter is require ...
... isolation between the source and load side is provided by the high-frequency transformer. Transformer also performs voltage matching between the source and the load side since the voltage ratio between them is very high. The transformer works with ac quantities and hence a dc-ac converter is require ...
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.