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Power Supply Restoration
Power Supply Restoration

... While Astron does a pretty good job, the heat sinking for the RS-35M, in Figure 1., is insufficient for true CCS (continuous commercial service) at 25 ADC output. At 117.0 VAC line input and 25 ADC output at 13.80 VDC, the pass transistors dissipate about 120 Watts. Astron’s heat sink appears to be ...
2013 kcse nandi cent..
2013 kcse nandi cent..

... Answer ALL questions in this section in the spaces provided 1. The experiment below is an equation for a radioactive element A. Elements B and C are the daughter nuclides. A, B and C are not the actual symbols of any of the ...
Input Leakage Current in High Speed Applications
Input Leakage Current in High Speed Applications

... The AD7738 and AD7739 feature on-chip buffers with input leakage specifications of 200 nA (AD7738) and 5 nA (AD7739). Without these buffers, the user would be exposed to the load presented by an unbuffered -. However, even with these buffers, there are other input currents caused by channel changi ...
Arduino Section I
Arduino Section I

... • No matter what the sensor there are only two settings: On and Off • Signal is always either HIGH (On) or LOW (Off) • Voltage signal for HIGH will be a little less than 5V on your Uno • Voltage signal for LOW will be 0V on most systems ...
DRSSTC BUILDING THE MODERN DAY TESLA COIL FIRST EDITION
DRSSTC BUILDING THE MODERN DAY TESLA COIL FIRST EDITION

Slide 1
Slide 1

... In a series circuit, all of the Resistors are added together In order to get the Equivalent Resistance. R = R1 + R2 + R3 + … See that the equivalent resistance Is greater than any individual Resistor, therefore if the voltage Does not change, adding more Resistors always decreases current ...
7th-grade - "Current and Voltage"
7th-grade - "Current and Voltage"

Exploring Series and Parallel Circuits
Exploring Series and Parallel Circuits

Using Electricity - Summary Notes.CWK (DR)
Using Electricity - Summary Notes.CWK (DR)

... IS = I1 + I2 + ... ...
AdvLessons#10
AdvLessons#10

... of circuits is to measure the internal resistance of the battery. ► The difference in voltage between the EMF and the terminal voltage can be treated as a tiny resistor located within the battery. ► We can then say that the EMF is the actual voltage of the battery. ► And that there is an internal re ...
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AN4076
AN4076

... for each of them in order to adapt the signals to the range of voltage that can be read by the analog-to-digital converter (ADC) peripheral embedded in the microcontroller unit (MCU). The non-inverting configuration shown in Figure 3 is usually used in STEVAL boards. As can be seen, as the signal on ...
VNQ860-E
VNQ860-E

... maximum rating section of the device datasheet. The power dissipation associated to RGNG during reverse polarity condition is: PD = (-VCC)2/RGND This resistor can be shared by several different ICs. In such case IS value on formula (1) is the sum of the maximum ON-state currents of the different dev ...
Solution
Solution

... ẏ(t) = −c1 e−t + c2 (−0.5 + 9.9875j)e(−0.5+9.9875j)t +c3 (−0.5 − 9.9875j)e(−0.5−9.9875j)t ÿ(t) = c1 e−t + c2 (−0.5 + 9.9875j)2 e(−0.5+9.9875j)t +c3 (−0.5 − 9.9875j)2 e(−0.5−9.9875j)t = c1 e−t + c2 (−99.5000 − 9.9875j)e(−0.5+9.9875j)t +c3 (−99.5000 + 9.9875j)e(−0.5−9.9875j)t . ...
ELEC 225L Circuit Theory I Laboratory Fall 2005
ELEC 225L Circuit Theory I Laboratory Fall 2005

... Use the oscilloscope to measure the open-circuit output voltage of the function generator. Without changing the amplitude setting of the generator, connect its output across a lowvalue resistor (say, a few tens of Ohms), which will serve as a load resistor RL as shown in Figure 1, and measure the vo ...
Electricity
Electricity

Quad Monitor Board Test Plan - dcc
Quad Monitor Board Test Plan - dcc

... sum of the two outputs. The summing amplifier has a gain of 1/3, so for +/15v in the output will be 5v. IC10 is an r.m.s. converter chip, which calculates the true r.m.s. output current. It is followed by an amplifier. The overall scaling factor of the r.m.s. converter and amplifier circuits is 1/3. ...
COEN6511 LECTURE 3
COEN6511 LECTURE 3

... So let 1/RD ~ β approximate or 1.7/ 1550 ~196.47 8 10-6 W/L W We have used    n Cox , we can find W by assuming L. Note that we used L CMOSIS 5B transconductance parameter K’P = 196.47 8 10-6 µA/V2. Please note that we are applying the transistor model which is not appropriate here, however it gi ...
Exam 2 Solutions
Exam 2 Solutions

... Solving for I2 yields I 2 = +33 / 28  +1.18 A. 9. An ammeter with full-scale deflection for I = 20.0 A has an internal resistance of 31.5 Ω. We need to use this ammeter to measure currents up to 30.0 A. What size resistor should be used to protect the ammeter? Answer: 63.0 Ω Solution: The “shunt” r ...
2014/2 ENGINEERING DEPARTMENTS PHYSICS 2 RECITATION 7
2014/2 ENGINEERING DEPARTMENTS PHYSICS 2 RECITATION 7

UNIT-VII Static Series Compensators
UNIT-VII Static Series Compensators

... capacitor is inserted by turning off, and it is bypassed by turning on the corresponding thyristor valve. • A thyristor valve commutates "naturally," that is, it turns off when the current crosses zero. Thus a capacitor can be inserted into the line by the thyristor valve only at the zero crossings ...
Datasheet - Monolithic Power System
Datasheet - Monolithic Power System

... current generated. For PWM dimming, (VDIM VINGND) must exceed 1.5V. Use a PWM frequency in the range of 100Hz to 2kHz for good dimming linearity. For combined analog and PWM dimming, apply a PWM signal with amplitude from 0.67V to 1.36V to EN pin. Output Short Circuit Protection The MP24833 features ...
Chapter 20 – Circuits and Circuit Elements
Chapter 20 – Circuits and Circuit Elements

...  The Req is always greater than any individual resistance  Series circuits require all elements to conduct – if one resistor is broken, no current can flow and everything stops Parallel Circuits  Resistors in parallel always have the same potential difference (∆V) across them  There is more than ...
Secrets Of SMPS Repair And Troubleshooting (Switch Mode Power
Secrets Of SMPS Repair And Troubleshooting (Switch Mode Power

... volt to B+ pin of flyback transformers and so forth. If one of the components or circuit developed a short circuit, the voltage (vcc supply) line will drawn a lot of current and thus the power will shut down, fluctuate, low output power or even no power at all. You must know how to isolate or repair ...
Lab 2 Simple Electric Circuits
Lab 2 Simple Electric Circuits

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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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