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TPS63030 数据资料 dataSheet 下载
TPS63030 数据资料 dataSheet 下载

... The controller circuit also senses the average input current as well as the peak input current. With this, maximum input power can be controlled as well as the maximum peak current to achieve a safe and stable operation under all possible conditions. To finally protect the device from overheating, a ...
pptx
pptx

... • What are low-dropout regulators(LDO)? – LDOs are more complex linear regulators, using a transistor and error amplifier for negative feedback – Larger capacitor is now needed • Inherently, the capacitors will have equivalent series resistance that will also contribute to noise reduction. ...
A Survey of Non-conventional Techniques for Low
A Survey of Non-conventional Techniques for Low

Paper Title (use style: paper title)
Paper Title (use style: paper title)

... the ESRs (equivalent series resistance) of the inductors and capacitors are ignored.  All capacitors are sufficiently large, and the voltages across the capacitors can be treated as constant. Converter Topology A. Boost Converter The boost converter is a very popular non-isolated topology effective ...
250 kVA, 0.8 pf lagging Load 2
250 kVA, 0.8 pf lagging Load 2

... CONNECTED LOAD IS CONNECTED  TWO Loads are parallel if they are converted to same type.  Delta connected load is converted to Y connection. ...
PPT Digikey Coupled Inductors for SEPIC
PPT Digikey Coupled Inductors for SEPIC

... operated devices, NiMH chargers and LED driver applications. Wurth Electronics is offering a full range of coupled inductors for such applications: WE-DD, WE-TDC and WE-DCT series. All products shown are available in stock at digikey.com. Additionally, Wurth Electronics offers an easy-to-use design ...
Adaptive synchronous rectification controller for LLC resonant
Adaptive synchronous rectification controller for LLC resonant

SQUIDs - Syed Ali Raza
SQUIDs - Syed Ali Raza

... Some very interesting quantum phenomenon can be observed using superconductors. A superconductor is a element that loses its electrical resistance below a Curie temperature Tc. In superconductors the current is not carried by single electrons but by pairs of electrons with opposite spins called Coop ...
APD 2000 - Absolute Process Instruments
APD 2000 - Absolute Process Instruments

MAX8814 28V Linear Li+ Battery Charger with Smart Autoboot Assistant General Description
MAX8814 28V Linear Li+ Battery Charger with Smart Autoboot Assistant General Description

... TDFN package with an exposed paddle. Connect the exposed paddle to a large copper ground plane to provide a thermal contact between the device and the circuit board for increased power dissipation. The exposed paddle transfers heat away from the device, allowing the IC to charge the battery with max ...
JUNG TRICK - Electronotes
JUNG TRICK - Electronotes

Ch09_PPT_Fund_Elec_Circ_5e
Ch09_PPT_Fund_Elec_Circ_5e

MCOTS-C-28-24-HZ-NM - SynQor, Inc.
MCOTS-C-28-24-HZ-NM - SynQor, Inc.

... Input Under-Voltage Lockout: The converter is designed to turn off when the input voltage is too low, helping to avoid an input system instability problem, which is described in more detail in the application note titled “Input System Instability” on the SynQor website. The lockout circuitry is a co ...
Aalborg Universitet Yao, Zhilei; Xu, Jing; Guerrero, Josep M.
Aalborg Universitet Yao, Zhilei; Xu, Jing; Guerrero, Josep M.

Probing Transistors at the Contact Level in Integrated Circuits
Probing Transistors at the Contact Level in Integrated Circuits

LP3879 - Texas Instruments
LP3879 - Texas Instruments

... Figure 19. Stable Region For Output Capacitor ESR Important: The output capacitor must maintain its ESR within the stable region over the full operating temperature range of the application to assure stability. The output capacitor ESR forms a zero which is required to add phase lead near the loop g ...
74LCX74 Low Voltage Dual D-Type PositiveEdge
74LCX74 Low Voltage Dual D-Type PositiveEdge

lecture chapter 25
lecture chapter 25

Probing Transistors at the Contact Level in Integrated Circuits
Probing Transistors at the Contact Level in Integrated Circuits

MPQ4470(A) - Monolithic Power System
MPQ4470(A) - Monolithic Power System

... capacitors without an external ramp. There is also an inductance limit: A smaller inductance leads to more stability. Based on bench experiments, keep VSLOPE1 around 15V/ms to 30V/ms. In skip mode, the external ramp does not affect the downward slope, and VFB ripple’s downward slope is the same with ...
Efficient Power Conversion Corporation
Efficient Power Conversion Corporation

Problem 18 (a) Convert the circuit to the left of terminals AB in Figure
Problem 18 (a) Convert the circuit to the left of terminals AB in Figure

... equivalent circuit gives ISC = 12/3 = 4 A and r1 = 3 . For the branch containing the 24 V source, converting to a Norton equivalent circuit gives ISC2 = 24/2 =12 A and r2=2  ...
Electric Current and Circuits
Electric Current and Circuits

... a mass upward within Earth’s gravitational field. (requires work by an outside force)  Would increase the PE of the object  Moving the charge in the SAME direction of an electric field is like a mass falling downward within Earth’s gravitational field. (occurs without an outside force)  Would dec ...
UCC28050 数据资料 dataSheet 下载
UCC28050 数据资料 dataSheet 下载

... inductor zero-current detector (ZCD pin) and the turn-off being governed by the current-sense comparator. Additionally, the controller provides features such as peak current limit, default timer, overvoltage protection (OVP) and enable. The UCC38050 and UCC38051, while being pin compatible with othe ...
AP8800A Description Pin Assignments
AP8800A Description Pin Assignments

... proportional voltage to the input of the internal comparator. When this voltage reaches an internally set upper threshold, the internal switch is turned off. The inductor current continues to flow through RSET, L1, the LEDs and the schottky diode D1, and back to the supply rail, but it decays, with ...
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Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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