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General Amplifier Systems Word Document
General Amplifier Systems Word Document

... unless we adopt a consistent understanding of how to describe the waveform. We will define amplitude as: “the maximum ‘height’ of the positive part of a wave.” It is sometimes referred to as peak value or maximum value. In electronics, it is usually measured in volts. The following diagram illustrat ...
Slide 1
Slide 1

Design Procedure for Two-Stage CMOS Transconductance
Design Procedure for Two-Stage CMOS Transconductance

... When M is not given it is set to minimize settling time [10]. Important parameters such as dc gain, CMRR and PSRR, will not be used during the design steps since they depend on the output resistance of MOS transistors that is not easily modeled for a hand analysis. Such parameters greatly depend on ...
TLE2142-Q1
TLE2142-Q1

... 10-Hz 1/f corner and symmetrical 40-V/µs slew rate typically with loads up to 800 pF. The resulting low distortion and high power bandwidth are important in high-fidelity audio applications. A fast settling time of 340 ns to 0.1% of a 10-V step with a 2-kΩ/100-pF load is useful in fast actuator/posi ...
Memory Effect Minimization and Wide Instantaneous
Memory Effect Minimization and Wide Instantaneous

LT1014D-EP
LT1014D-EP

... The LT1014D is fully specified for single-supply operation (VCC- = 0). The common-mode input voltage range includes ground, and the output swings within a few millivolts of ground. Furthermore, the LT1014D has specific circuitry that addresses the difficulties of single-supply operation, both at the ...
80K-40 High Voltage Probe
80K-40 High Voltage Probe

ADDAC80 数据手册DataSheet 下载
ADDAC80 数据手册DataSheet 下载

... increased immunity to supply voltage variation. This same structure also reduces nonlinearities due to thermal transients as the various bits are switched; nearly all critical components operate at constant power dissipation. High stability, SiCr thin film resistors are trimmed with a fine resolutio ...
Hi-Fi AUDIO COMPONENTS 2012 / 2013
Hi-Fi AUDIO COMPONENTS 2012 / 2013

... Employs a large-current UHC-MOS for amplifier element to configure an ideal circuit that is both a simple push-pull circuit and one that is capable of high-power output. The UHC-MOS in this amplifier is of a new type that provides greater current capacity and represents the heart of the Advanced UHC ...
CONSONANCE
CONSONANCE

... The CN3722 is a constant current, constant voltage battery charger controller that can be powered by the photovoltaic cell with maximum power point tracking function, the device is specially designed for 1 or multi-cell Li-Ion battery or LiFePO4 batteries. The charge current is set by an external se ...
flow measurement technology - BEDA Flow Systems Pvt. Ltd.
flow measurement technology - BEDA Flow Systems Pvt. Ltd.

... per measured volume. • The double pick-up operates with two independent carrier frequency oscillators, which are modulated when a tooth passes. This modulation is detected by the amplifier and is used to generate 2 or 4 digital impulses per measured volume, which can be selected by the coding of th ...
SMJE-XV08W2P4 - Seoul Semiconductor
SMJE-XV08W2P4 - Seoul Semiconductor

... Electrical Over-Stress (EOS) is defined as damage that may occur when an electronic device is subjected to a current or voltage that is beyond the maximum specification limits of the device. The effects from an EOS event can be noticed through product performance like: - Changes to the performance o ...
Trubitsyn, A., B. Pierquet, A. Hayman, and D.J. Perreault, “High-Efficiency, Grid-Tie Inverter for Photovoltaic Applications,” 2010 IEEE Energy Conversion Congress and Exposition , pp. 2803-2810, Sept. 2010.
Trubitsyn, A., B. Pierquet, A. Hayman, and D.J. Perreault, “High-Efficiency, Grid-Tie Inverter for Photovoltaic Applications,” 2010 IEEE Energy Conversion Congress and Exposition , pp. 2803-2810, Sept. 2010.

... We propose an improved realization of this architecture that enables reduced device losses compared to other realizations along with flexible control, enabling very high efficiencies to be achieved. All devices operate with resistive on-state drops (no diode drops) under zero-voltage switching (ZVS) ...


Circuit Note CN-0365
Circuit Note CN-0365

Pierquet, B.J. and D.J. Perreault, “A Single-Phase Photovoltaic Inverter Topology with a Series-Connected Power Buffer,” 2010 IEEE Energy Conversion Congress and Exposition , pp. 2811-2818, Sept. 2010.
Pierquet, B.J. and D.J. Perreault, “A Single-Phase Photovoltaic Inverter Topology with a Series-Connected Power Buffer,” 2010 IEEE Energy Conversion Congress and Exposition , pp. 2811-2818, Sept. 2010.

... where δ denotes the pulse width, expressed in radians, and the phase θ denotes the difference in phase between the output voltage waveform and the series resonant current. For a given power transfer constraint in either the bufferblock or cycloconverter, (4) can be used to determine the minimum magn ...
Chapter 3: Filters and Transfer Functions
Chapter 3: Filters and Transfer Functions

... changes, even though the change is gradual for this type of circuit. (The cutoff frequency is usually defined as the frequency where the output amplitude is – 3dB from the input amplitude.) One could guess this result by noting that the impedance of the capacitor decreases as the frequency increases ...
Tips `n Tricks 3V
Tips `n Tricks 3V

... exceeding the maximum allowable voltage specification by using clamping diodes. These clamping diodes keep the pin from going more than a diode drop below Vss and a diode drop above VDD. To use the clamping diode to protect the input, you still need to look at the current through the clamping diode. ...
Sensortec ST-I / ST-P Datasheet
Sensortec ST-I / ST-P Datasheet

... The ST-P conventional photoelectric smoke detector utilises the light scatter sensing principle, the LED pulses every 8 seconds to maintain a low monitoring current. A quick charge time, (30 seconds), is also achieved. The detector incorporates an alarm verification function which requires two succe ...
Charge, Voltage and Capacitance
Charge, Voltage and Capacitance

Circuit connections - series
Circuit connections - series

... 1. Use your understanding of equivalent resistance to complete the following statements: a. Two 3- resistors placed in series would provide a resistance which is equivalent to one _____- resistor. b. Three 3- resistors placed in series would provide a resistance which is equivalent to one _____- res ...
SunAir Solar Power Controller Board
SunAir Solar Power Controller Board

... resistance drops. In the dark, the resistance is higher. If it is dark, it allows less current through than if there is light. To use this AD converter you do the following sequence. ...
MP11 High Sensitive Metal Detector for Detecting Metal Objects
MP11 High Sensitive Metal Detector for Detecting Metal Objects

... (Better Security System for to Detect Terrorists / Human Bombs) One of the simplest methods of metal detecting is by beat frequency oscillator. Basically, the circuit consists of two balanced oscillator. One oscillator provides the reference signal, and other oscillator is acting as the detector ele ...
FSB50825US Motion SPM 5 Series ®
FSB50825US Motion SPM 5 Series ®

... 3rd Notes: 1. It is recommended the bootstrap diode D1 to have soft and fast recovery characteristics with 600 V rating. 2. Parameters for bootstrap circuit elements are dependent on PWM algorithm. For 15 kHz of switching frequency, typical example of parameters is shown above. 3. RC-coupling (R5 an ...
AT4051b - Audio Technica
AT4051b - Audio Technica

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Resistive opto-isolator



Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.
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