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Lab 7
Lab 7

OPA227, OPA2227, OPA4227, OPA228, OPA2228, OPA4228
OPA227, OPA2227, OPA4227, OPA228, OPA2228, OPA4228

Universidad de Puerto Rico
Universidad de Puerto Rico

... LETTER INTO THE SQUARE BOX. You are required to answer only 20 of the 25 questions. You have to select and identify the 20 questions to be corrected by circulating the square box of each one. If you choose not to indicate which questions are the chosen ones, the first 20 questions will be the ones s ...
Inductor Calculation for Buck Converter IC
Inductor Calculation for Buck Converter IC

... Current flowing through the coil is a combination of output current and ripple-current. When an abnormality occurs (ex. output short) in a transient load condition and there will be a power surge due to the absence of soft-start feature, and it is possible that the actual current flow through the in ...
TPS5410 - Texas Instruments
TPS5410 - Texas Instruments

... The integrated 110-mΩ high-side MOSFET supports high-efficiency power-supply designs capable of delivering 1-A of continuous current to a load. The gate-drive bias voltage for the integrated high-side MOSFET is supplied by a bootstrap capacitor connected from the BOOT to PH pins. The TPS5410 reduces ...
Physics Review #1
Physics Review #1

LED Driver - Ece.umd.edu
LED Driver - Ece.umd.edu

... emitter voltage “pushes” the collector voltage higher, as the minimum emitter-collector voltage that can be maintained in saturation mode is about 0.2V. This aberration in the signal appears to cause some ringing at the collector after the emitter voltage drops. As the input frequency increases, the ...
OPA1611 OPA1612
OPA1611 OPA1612

... to +25V with the negative supply at –5V. In all cases, the common-mode voltage must be maintained within the specified range. In addition, key parameters are assured over the specified temperature range of TA = –40°C to +85°C. Parameters that vary with operating voltage or temperature are shown in t ...
Texas Instruments TPS6120x regulator datasheet
Texas Instruments TPS6120x regulator datasheet

... is regulated by a fast current regulator loop which is controlled by a voltage control loop. The controller also uses input and output voltage feedforward. Changes of input and output voltage are monitored and immediately change the duty cycle in the modulator to achieve a fast response to those err ...
STP78N75F4
STP78N75F4

... VDD = 37.5 V, ID = 39 A RG = 4.7 Ω VGS = 10 V (see Figure 13) ...
AD8278 英文数据手册DataSheet 下载
AD8278 英文数据手册DataSheet 下载

NCP1207A, NCP1207B PWM Current
NCP1207A, NCP1207B PWM Current

... The NCP1207A/B combines a true current mode modulator and a demagnetization detector to ensure full borderline/critical Conduction Mode in any load/line conditions and minimum drain voltage switching (Quasi-Resonant operation). Due to its inherent skip cycle capability, the controller enters burst m ...
AD8203 数据手册DataSheet 下载
AD8203 数据手册DataSheet 下载

... The AD8203 is a single-supply difference amplifier for amplifying and low-pass filtering small differential voltages in the presence of a large common-mode voltage (CMV). The input CMV range extends from −6 V to +30 V at a typical supply voltage of 5 V. ...
AN2839
AN2839

... Choosing the bulk capacitor Since the bulk capacitor, placed between the VS and GND pins, is charged and discharged during IC operation, its AC current capability must be greater than the RMS value of the charge/discharge current. This current flows from the capacitor to the IC during the on time (t ...
NCP1207A, NCP1207B PWM Current--Mode Controller for Free Running Quasi--Resonant Operation
NCP1207A, NCP1207B PWM Current--Mode Controller for Free Running Quasi--Resonant Operation

... The NCP1207A/B combines a true current mode modulator and a demagnetization detector to ensure full borderline/critical Conduction Mode in any load/line conditions and minimum drain voltage switching (Quasi--Resonant operation). Due to its inherent skip cycle capability, the controller enters burst ...
General Description Features
General Description Features

... The MAX16821A–MAX16821C’s V DD input provides supply voltage for the low-side and the highside MOSFET drivers. Connect VDD to VCC using an R-C filter to isolate the analog circuits from the MOSFET drivers. The internal LDO powers up the MAX16821A– MAX16821C. For applications utilizing a 5V input vol ...
LM134/LM234/LM334 3-Terminal Adjustable Current Sources (Rev. E)
LM134/LM234/LM334 3-Terminal Adjustable Current Sources (Rev. E)

Ultra Low Power VLSI Design: A Review
Ultra Low Power VLSI Design: A Review

... a day’s power dissipation became major concern for VLSI Engineers. Static power is defined as the power consumed by the device when it is in inactive mode and dynamic power is the power consumed when the device is in operation. CMOS circuits are designed theoretically to not consume any power in qui ...
datasheet - Intersil
datasheet - Intersil

... Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/en/support/qualandreliability.html Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in ci ...
G5 Questions
G5 Questions

Zener Diode Exercise Number 2
Zener Diode Exercise Number 2

SPEED REGULATOR FOR DC MOTORS
SPEED REGULATOR FOR DC MOTORS

... Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by ...
AN1722
AN1722

... As previously exposed, the topology solution for CCFL applications used in this paper is the 'ROYER' topology. This topology solution has a current feed PUSH-PULL switching converter stage and also an inductor that together with a PNP power bipolar, or P channel power MOSFET transistor and a free wh ...
SGB-6433(Z) 数据资料DataSheet下载
SGB-6433(Z) 数据资料DataSheet下载

... Package: 3x3 QFN, 16-Pin ...
ADN2890ACPZ-RL Datasheet
ADN2890ACPZ-RL Datasheet

... VEE pins should be soldered directly to the ground plane to reduce series inductance. If the ground plane is an internal plane and connections to the ground plane are made through vias, multiple vias can be used in parallel to reduce the series inductance, especially on Pin 9, which is the ground re ...
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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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