14: Power in AC Circuits

Cosine Wave RMS 14: Power in AC Circuits •Average Power •Cosine Wave RMS •Power Factor + •Complex Power •Power in R, L, C •Tellegen’s Theorem •Power Factor Correction •Ideal Transformer •Transformer Applications •Summary E1.1 Analysis of Circuits (2017-10213) AC Power: 14 – 3 / 11 Cosine Wave: v(t) = 5cosωt.Amplitude is V = 5V. Squared Voltage: v2(t) = …

FINANCIAL REGULATIONS PREAMBLE

1 FINANCIAL REGULATIONS PREAMBLE 1.1 These Regulations are made by the Director of Finance, acting on the advice of the Management Board, under powers conferred by the Council under paragraph 5 of Ordinance C1.

  Regulations, Financial, Preamble, Financial regulations preamble

Convolution Table (1) Convolution Table (2)

with System’s impulse response h(t). Convolution Integral ... weighted by h(t- τ) (i.e. x(τ) h(t- τ)) for the shaded pulse, PLUS the contribution from all the previous pulses of x(τ). The summation of all these weighted inputs is the convolution integral. L2.4-2 p191

  Convolutions

Signal Transmission through LTI Systems

PYKC 20-Feb-11 E2.5 Signals & Linear Systems Lecture 12 Slide 9 Parseval’s Theorem The energy of a signal x(t) can be derived in time or frequency domain:

  Transmissions, Signal, Theorem, Parseval s theorem, Parseval, Signal transmission

Tutorial 7 - Sampling

PYKC – 11 Feb 08 2 E2.5 Signals & Linear Systems Tutorial Sheet 7 – Sampling (Lectures 12 - 13) 1.* By applying the Parseval’s theorem, show that

  Sampling, Theorem, Parseval s theorem, Parseval, 7 sampling

Lecture 8 - Timing Constraints

Metastability is a problem that arises when an external input NOT synchronised to the system clock is fed into our synchronous circuit. Since the input signal could change anytime relative the the clock edge, metastability will occur. It could also happens when a signal crosses from one clock domain (Clock1) to another clock domain (Clock2).

  Metastability

SERVO MOTOR SG90 DATA SHEET - Imperial College London

SERVO MOTOR SG90 DATA SHEET Tiny and lightweight with high output power. Servo can rotate approximately 180 degrees (90 in each direction), and works just like the standard kinds but smaller. You can use any servo code, hardware or library to control these servos.

  Sheet, Data, Motor, Data sheet, Servo, Servo motors

17: Transmission Lines

• Forward Wave • Forward ... A transmission line is a wire with a uniform goemetry along its length: the capacitance and inductance of any segment is proportional to its length. We represent as a large number of small inductors and capacitors spaced along the line.

  Waves, Length

8: Correlation - Imperial College London

E1.10 Fourier Series and Transforms (2015-5585) Fourier Transform - Correlation: 8 – 3 / 11 Cross correlation is used to find where two signals match: u(t) is the test waveform.

  Tests, Correlations

3: Nodal Analysis

We assume the interconnections have zero resistance so all points within a node have the same voltage. Five nodes: A,···,E. Ohm’s Law: VBD = IR5 KVL: VBD = VB −VD KCL: Total current exiting any closed region is zero.

  Interconnection