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AH5798  SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER
AH5798 SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER

... Diode D1 is needed between power supply and Vdd terminal. If a reverse power protection diode D1 is used, there is no current return path to power supply, so it is necessary to follow measures such as below. - Connect Dz (Zener diode) between Vdd and Vss terminal, to prevent voltage exceeding the ab ...
Misconception Problems
Misconception Problems

... a potential difference of 400 V and is then disconnected from the charging battery. If the plate spacing is now doubled (without changing Q), what is the new value of the voltage? ...
B  2.5 A Output Current, IGBT Drive Optocoupler with Desaturation Detection
B 2.5 A Output Current, IGBT Drive Optocoupler with Desaturation Detection

... output current IGBT drive optocoupler, offers the critical protection necessary for preventing fault conditions that lead to destructive thermal runaway of IGBTs. Pin-forpin compatible with current solutions, the FOD8316 consists of an integrated gate drive optocoupler featuring low RDS(ON) CMOS tra ...
HMCAD1051-80 - Hittite Microwave Corporation
HMCAD1051-80 - Hittite Microwave Corporation

... capacitor track-and-hold amplifier optimized for differential operation. Operation at common mode voltages at mid supply is recommended even if performance will be good for the ranges specified. The CM_EXT pin provides a voltage suitable as common mode voltage reference. The internal buffer for the ...
LM4766 Overture Audio Pwr Amp Series Dual
LM4766 Overture Audio Pwr Amp Series Dual

(CCM) and Discontinuous Conduction Mode (DCM)
(CCM) and Discontinuous Conduction Mode (DCM)

... Fig. 6 Block diagram converter power supply Hence, when the duty cycle, D, is such that IO (peak) = IAV we have a transition or border region mapped out between DCM and CCM of operation. This will be unique for each circuit topology. In short when the ratio at CCM boundary occurs. Often in applicati ...
06_AC Generators
06_AC Generators

... EMF will be applied to the external circuit.  To make a continuous connection to the external circuit, the ends of the wire are fastened to Slip Rings mounted on the axis of the rotating loop.  Sliding connectors called brushes complete the circuit. The slip rings rotate with the loop while the no ...
Oct-1968 - HP Labs
Oct-1968 - HP Labs

MAX1830/MAX1831 3A, 1MHz, Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches
MAX1830/MAX1831 3A, 1MHz, Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches

... The MAX1830/MAX1831 optimize efficiency by operating in constant-off-time mode under heavy loads and in Maxim’s proprietary Idle Mode under light loads. A single resistor-programmable constant-off-time control sets switching frequencies up to 1MHz, allowing the user to optimize performance trade-off ...
MAG/EB EVO II
MAG/EB EVO II

... Your Ashdown Engineering amplifier has been manufactured to the highest standards, using the bestselected materials. To ensure its optimum performance, please ensure your amplifier is regularly serviced. This product carries a one year warranty, against defects in materials and workmanship, for the ...
Jolida 302b Upgrade
Jolida 302b Upgrade

... The general steps for performing these modifications is very simple. Unsolder the old parts, and insert the new parts. I generally work very slowly through this process and spend about 3 hours to complete these modifications. For ease of understanding, I colorcoded the parts I recommend replacing. T ...
Selection Guide
Selection Guide

... and excessive current will cause the device resistance to increase until it limits the unsafe current level. Upon reaching the design temperature/current limit, the PTC will effectively “open” the circuit to provide protection from the overcurrent or elevated ambient temperature condition. Once the ...
Electric Current
Electric Current

... An electric heater draws 18.0 A on a 120 V line. How much power does it use and how much does it cost per 30 day month if it operates 3.0 h per day and the electric company charges 10.5 cents per kWh. For simplicity assume the current flows steadily in one direction. What the heck is a kWh? What’s t ...
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... transient response of the LDO. The AP7167 is designed to have excellent transient response for most applications with a small amount of output capacitance. The AP7167 is stable for all available types and values of output capacitors ≥ 4.7μF. The device is also stable with multiple capacitors in para ...
AP4201274279
AP4201274279

... used for ripple reduction [1], however one addition buck converter is used which increases the cost. Several input filter designs are analyzed and implemented [2], which increases the size of the inductor used. However, the Cuk and Sepic converters can easily achieve zero-ripple input current by usi ...
discrete preamplifier for apd readout
discrete preamplifier for apd readout

... The input stage is followed by a broadband (300 MHz), fast (2'000 V/μs) and low power (±1 mA) current feedback operational amplifier of the type AD8011AR from the company Analog Devices. With its typical input voltage noise density of only 2 nV/sqrt(Hz) at 10 kHz, this amplifier suits well for such ...
MS WORD
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... decreased capacitance due to addition of myelin to an unmyelinated nerve axon. The main point here to learn is that the electrical capacitance is proportional to surface area and inversely related to the thickness of the dielectric layer (myelin) which separates the "plates" or storing surfaces of t ...
P1 4.5 Questions and answers File
P1 4.5 Questions and answers File

... 8 Explain why the following statement is partly correct and partly incorrect: ‘A step-up transformer increases the energy provided by the electricity supply.’ Use data from Figure 1 to support your answer. A A step-up transformer increases the voltage of the supply, and reduces the current. The amou ...
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ADN4668 数据手册DataSheet 下载

FB1201B Digital Input Connection Assembly
FB1201B Digital Input Connection Assembly

... Installation in suitable enclosures in Zone 1 Module can be exchanged under voltage (hot swap) Dry contact or NAMUR inputs Galvanic isolation between channels and the bus Positive or negative logic selectable Simulation mode for service operations (forcing) Line fault detection (LFD) Permanently sel ...
MTP3055 - Department of Electrical Engineering, University of
MTP3055 - Department of Electrical Engineering, University of

... without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims ...
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Advanced LIVA/TIVA Techniques

PageNet88M Manual - Australian Monitor
PageNet88M Manual - Australian Monitor

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Op Amp History

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Digital to Analog Converters (DAC)

... Errors ◊ Digital to Analog systems have several possible sources of error. ◊ The errors can be the result of: ◊ Binary Input ◊ Non-linear input sequences or incorrect values ◊ Voltage issues ◊ Resistor network ◊ Resistors out of specification ◊ Noise ◊ Op Amp output errors ◊ Improper input voltage ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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