Quality factor, Q

When a resonant circuit is connected to the outside world, its total losses (let’s call them RP or GP) are combined with the source and load resistances, RS and RL. For example, Here is a parallel resonant circuit (C,L and RP)connected to the outside. The total Q of this circuit is called the loaded Q or QL and is given by

  Parallel, Resonant, Parallel resonant

Phase Locked Loop Circuits

Clock generation: B. Razavi, Design of Analog CMOS Integrated Circuits, Chap. 15, McGraw-Hill, 2001. 1. Definition. A PLL is a feedback system that includes a VCO, phase detector, and low pass filter within its loop. Its purpose is to force the VCO to replicate and track the frequency and phase at the input when in lock.

  System, Design

Harmonic Balance Simulation on ADS

Harmonic Balance Simulation on ADS General Description of Harmonic Balance in Agilent ADS 1 Harmonic balance is a frequency-domain analysis technique for simulating nonlinear circuits and systems. It is well-suited for simulating analog RF and microwave circuits, ... function is driven to a given small value), then the resulting voltage ...

  Simulation, Driven

Flip-Flops and Sequential Circuit Design

11 Latches and Flip-Flops 11.5 S-R Flip-Flop 11.6 J-K Flip-Flop 11.7 T Flip-Flop 11.8 Flip-Flops with Additional Inputs 11.9 Summary 12 Registers and Counters 12.5 Counter Design Using S-R and J-K Flip-Flops 12.6 Derivation of Flip-Flop Input Equations – Summary

  Flip, Flops, Latches, Latches and flip

Mealy and Moore Machines

February 22, 2012 ECE 152A - Digital Design Principles 5 Finite State Machines Two types (or models) of sequential circuits (or finite state machines) Mealy machine Output is function of present state and present input Moore machine Output is function of present state only Analysis first, then proceed to the design of

  States, Design, Machine, Finite, Finite state

Transistor Technologies for High Efficiency and Linearity

Differential Topology • Double the available voltage swing • Even-order harmonic suppression • Double the frequency of current injection into substrate –Reduce the potential for LO-pulling • The tail current source is removed from the standard differential pair (this is a “quasi-differential” structure) –DC current set by the biasing of input devices

ADS Tutorial Stability and Gain Circles ECE145A/218A

equations. The syntax is: gp_circle(S, gain, # points on circle) where S is the S-parameter matrix. Let’s illustrate. In the example below, a table is used to display frequency, maximum stable gain (MSG), the stability factor, k, and the magnitude of delta. The gain circles are at MSG (MaxGain1 in this case), and 1 and 2 dB below MSG.

  Stability, Gain, Tutorials, Circle, Tutorial stability and gain circles ece145a, Ece145a, Gain circles

POWER AMPLIFIERS - UC Santa Barbara

Classes of Power Amplifier • Bias point amplifiers –Class-A –Class-B –Class-C • Switching amplifier –Class-E –Class-F ©James Buckwalter 22. PA Waveform • Drain current consists of DC current and AC current ©James Buckwalter i D = I D + i d i d = i pk sin (w o t) v o = - i d R 23. PA Quiescent Conditions • DC Conditions V

  Class, Amplifier

Latches, the D Flip-Flop & Counter Design

February 6, 2012 ECE 152A - Digital Design Principles 2 Reading Assignment Brown and Vranesic 7Flip-Flops, Registers, Counters and a Simple Processor 7.1 Basic Latch 7.2 Gated SR Latch 7.2.1 Gated SR Latch with NAND Gates 7.3 Gated D …

  Latch, Sr latch

BASICS OF THE SPECTRUM ANALYZER - UC Santa Barbara

Fourier ⋅ π → − + + Now instead of a bank of narrow filters, we shall have one narrow filter centered at a fixed frequency, say fI, and we shall scan the signal spectrum across this filter by multiplying x(t) by a sinusoid of varying frequency f0. See Figure 1. …

  Basics, Spectrum, Analyzer, Fourier, Spectrum analyzer

NEMA and IEC schematic diagram comparisons - MZ081001EN

Control circuit Common Schematic Diagrams: Across the Line Non-Reversing Starters with Hand–Off–Auto Selector Switch Power circuit—starter Control circuit—starter. 7 Cross-Reference MZ081001EN Effective November 2013

  Control, Circuit, Control circuit

LED Drive Control Special Circuit TM1637 1 K2 20 SEG1/KS1 K1

LED Drive Control Special Circuit TM1637 1 ©Titan Micro Electronics www.titanmec.com V2.4 Features description GND TM1637 is a kind of LED (light-emitting diode display) drive control special circuit with keyboard scan interface and it's internally integrated with MCU digital interface, data latch, LED high pressure ...

  Control, Circuit

HYDRAULIC CIRCUIT DESIGN AND ANALYSIS

HYDRAULIC CIRCUIT DESIGN AND ANALYSIS A Hydraulic circuit is a group of components such as pumps, actuators, and control valves so arranged that they will perform a useful task. When analyzing or designing a hydraulic circuit, the following three important considerations must be taken into account: 1. Safety of operation 2.

  Control, Circuit

SHORT CIRCUIT CURRENT RATINGS - Mouser Electronics

Current Ratings for Industrial Control Panels Introduction A short-circuit current rating (SCCR)1 is the maximum current a device or system can safely withstand for a specified time (such as 0.05 seconds), or until a specified fuse or circuit breaker opens and clears the circuit. SCCR is usually expressed in kiloamperes (kA).

  Control, Current, Electronic, Short, Ratings, Circuit, Mouser, Short circuit current ratings, Mouser electronics

11. The Series RLC Resonance Circuit

What we actually have control over is the signal generator voltage frequency f measured in Hz and w=2pf is the relationship between the two frequencies. Combining equations (1) through (3) above together with the time varying signal generator we get Kirchoff's loop equation for a series RLC circuit. L (4) d dt i@tD+ Q@tD C +i@tD R = V0 Sin@wtD

  Control, Circuit

Chapter 7 Gate Drive circuit Design - Fuji Electric

increase switching losses. lower Rg adding CGE at the same time can control switching However, speed. In other words, both adding the CGE and decreasing the RG can avoid the unexpected turn -on ... Fig.7-4 shows the circuit schematic as well as the voltage and current waveforms. In principle,

  Control, Circuit

Chapter 6 Synchronous Sequential Circuits

In a combinational circuit, the values of the outputs are determined solely by the present values of its inputs. In a sequential circuit, the values of the outputs depend on the past behavior of the circuit, as well as the present values of its inputs. A sequential circuit has states, which in conjunction with the present values of inputs

  Circuit

Understanding LED Drivers - 1000Bulbs.com

Dimmable external drivers often require an external dimmer, or other dimming control devices specified on the product datasheet (namely TRIAC, Trailing Edge, or 1-10v dimmers) to work. Since technologies are improving rapidly, it’s best to test specific LED/dimmable driver combinations for

  Control, Understanding, Drivers, Understanding led drivers, 1000bulbs