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MAX6400–MAX6405 µP Supervisory Circuits in 4-Bump (2 2) Chip-Scale Package
MAX6400–MAX6405 µP Supervisory Circuits in 4-Bump (2 2) Chip-Scale Package

... µP Supervisory Circuits in 4-Bump (2 ✕ 2) Chip-Scale Package The MAX6400–MAX6405 is a family of ultra-low power microprocessor (µP) supervisory circuits used for monitoring battery, power-supply, and regulated system voltages. Each device contains a precision bandgap reference comparator and is trim ...
Ch4. LLC Resonant Converter
Ch4. LLC Resonant Converter

Sealed Lead-Acid Batteries Technical Handbook 2000
Sealed Lead-Acid Batteries Technical Handbook 2000

... recommended cut-off voltage may generate heat, resulting in the deformation of the battery or in condensation around the battery cover caused when moisture within the battery evaporates. In addition, the efficiency of the battery would eventually decrease. Overdischarging a battery may result in red ...
3.3- Modeling the Diode Forward Characteristic
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... Dept. of EECS ...
ADP1048 数据手册DataSheet 下载
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... ADP1047 is designed for single phase PFC applications; the ADP1048 is designed especially for interleaved and bridgeless PFC applications. The digital PFC function is based on a conventional boost PFC with multiplication of the output voltage feedback combined with the input current and voltage to p ...
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noise and distortion

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MAX821/MAX822 4-Pin µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout Delay General Description
MAX821/MAX822 4-Pin µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout Delay General Description

... Negative-Going VCC Transients While designed to issue a reset to the microprocessor (µP) during power-up, power-down, and brownout conditions, the MAX821/MAX822 are relatively immune to short-duration, negative-going VCC transients (glitches). Figure 1 shows the maximum transient duration vs. reset ...
CD4528BC Dual Monostable Multivibrator
CD4528BC Dual Monostable Multivibrator

... Revised August 2000 ...
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Georg Fischer Signet offers on-line information and assistance

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... WARNING indicates a potentially hazardous situation which, if not avoided, could result in death, serious injury or property damage. ...
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... (time stamp, status, register-value) approximately 19,000 records (15 minutes, ~ 200 days) can be recorded and in the second-one approximately 200 (1 day, ~ 200 days) records respectively. The saving period (a recording period) can be set. Available values are 15, 30 and 60 minutes or a daily value. ...
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Operating And Service Instructions - AT30 Charger

Ground loop problems and how to get rid of them
Ground loop problems and how to get rid of them

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ADM6821 数据手册DataSheet 下载
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... 2.93 V reset threshold parts. For example, with the 2.93 V threshold, a transient that goes 100 mV below the threshold and lasts 8 μs typically does not cause a reset, but if the transient is any bigger in magnitude or duration, a reset is generated. An optional 0.1 μF bypass capacitor mounted close ...
A Two-Step A/D Conversion and Column Self
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... Analog comparators can be used to compare a reference input voltage and analog input voltage. The comparison result can be read by software and also be output externally. The reference input voltage can be selected from either an input to the CMPREFi (i = 0, 1) pin or from the internal reference vol ...
Probes-Lab
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... Fluorescent lights and fan motors are just two of the many electrical noise sources in our environment. These sources can induce their noise onto nearby electrical cables and circuitry, causing the noise to be added to signals. Because of susceptibility to induced noise, a simple piece of wire is a ...
Document
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... We will be glad to receive any possible information which could help us improving this manual. The e-mail address is the following: [email protected]. Before using the product, read the safety instruction section carefully. Keep the manual in a safe place and available to engineering and installati ...
Mitsubishi S500 series manual
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Untitled
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Low Power Consumption (cont.)
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... When the voltage monitoring 1 interrupt/reset enable bit (LVD1RIE) is set to 1 (enabling generation of a reset or interrupt by the voltage detection circuit) and the voltage monitoring 1 circuit mode select bit (LVD1RI) is set to 1 (selecting generation of a reset in response to detection of a low v ...
APPLICATION NOTE AN255-02 I²C / SMBus REPEATERS, HUBS AND EXPANDERS
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... or longer I2C or SMBus system where the following constraints previously restricted its size: a) More I2C devices or larger wiring capacitance than the 400 pF maximum allowed in the I2C specification. b) Long bus wiring or backplanes c) Different operating supply voltages or logic voltage levels wit ...
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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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