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MAX8713 Simplified Multichemistry SMBus Battery Charger General Description
MAX8713 Simplified Multichemistry SMBus Battery Charger General Description

... detected a timeout condition must reset the communication no later than tTIMEOUT:MAX of 35ms. The maximum value specified must be adhered to by both a master and a slave as it incorporates the cumulative stretch limit for both a master (10ms) and a slave (25ms). Note 2: tLOW:SEXT is the cumulative t ...
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CUSTOMER_CODE SMUDE DIVISION_CODE SMUDE
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... delta- sigma modulation. This results in an effective high-pass filter acting on the quantization (signal processing) noise, thus steering this noise out of the low frequencies of interest into the high frequencies of little interest, which is called noise shaping (very high frequencies because of t ...
lab2_cs355
lab2_cs355

... 555 timer • MONOSTABLE: This is a system which has only one stable state. It can be made to change but it will always return to its original stable state. A spring operated push button switch is an example of this. Monostable circuits are used as timers and as a single pulse generator. ...
ABCs of DMMs
ABCs of DMMs

... the source voltage through a taken with the DMM alone low-value resistor inside the require placing the meter in series with the circuit being mea- DMM, called a current shunt. A high current flows through the sured. This means opening the DMM and if it is not adequately circuit and using the DMM te ...
White Light Emitting Diode Lighting Units
White Light Emitting Diode Lighting Units

ACDC2017_0008_final - The University of Manchester
ACDC2017_0008_final - The University of Manchester

... the realistic dynamic performance of the AC system. Depending on the focus of the study this can include exciters, power system stabilizers (PSSs), and governors. For this study, governor models are not important since the focus of the simulations is in the electromechanical transient timeframe whic ...
Nanoradian sensitivity Kerr effect apparatus
Nanoradian sensitivity Kerr effect apparatus

razor based dvs using multiprecision and operand
razor based dvs using multiprecision and operand

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... The 2ED020I12-FI is a high voltage, high speed power MOSFET and IGBT driver with interlocking high and low side referenced outputs. The floating high side driver may be supplied directly or by means of a bootstrap diode and capacitor. In addition to the logic input of each driver the 2ED020I12-FI is ...
BD8967FVM
BD8967FVM

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... is carried out about its performance in the compensation. Four formulations have been used, besides the original one. They have generated interesting contributions respect to the original theory. They are the Park transformation or d-q coordinates, [3], [4], the modified or cross product theory, [5] ...
2008 KCSE ELECTRICITY PAPER 1 MS
2008 KCSE ELECTRICITY PAPER 1 MS

...  Since VZ remains constant VR decreases  IL remains constant  Iz decreases ...
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AD8351 数据手册DataSheet 下载

... impedance of 5 kΩ. In practical applications, the input of the AD8351 will be terminated to a lower impedance to provide an impedance match to the driving source, as depicted in Figure 3. The terminating resistor, RT, should be as close as possible to the input pins in order to minimize reflections ...
Cordless Telepohones
Cordless Telepohones

... amplitude modulated (AM), frequency modulated (FM’), and television broadcast systems. In these systems high power transmitters with large antenna configurations are employed at the transmitter whereas most receivers use simple antennas and are themselves relatively simple. An example of the receive ...
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... with more stable, controlled methods and with materials that resist drift. Excessive drift results in manufacturing rejects, and the tight process/material control techniques that minimize drift in the factory also minimize drift in the field. It is common to represent a resistor as R1 or R2; and, k ...
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BZ23463467

IEEE Experimental Comparison of Conventional and Optical Current
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... rating, signal-to-noise ratio (SNR) on the output signal is lower at low currents (due to a fixed electronic noise) as compared to when the 4 V rated metering output is used. When intended for metering applications with rated currents below 4000 A, typical OCTs of this type are built with 20 fiber t ...
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... biases. The energy stored in the magnetizing inductor Lm2 now transferred to the capacitor Cb. In this mode iLk1 is increasing since the power switch S1 is on. Also C2 is charging through D2 and C3 is charging through D4.The current flowing through the magnetizing inductor Lm2, leakage inductor Lk2, ...
ETC SINGLE STAGE ELECTRONIC TEMPERATURE CONTROL
ETC SINGLE STAGE ELECTRONIC TEMPERATURE CONTROL

... The ETC is provided with a lockout switch to prevent tampering by unauthorized personnel. When placed in the LOCK position, the keypad is disabled and no changes to the settings can be made. When placed in the UNLOCK position, the keypad will function normally. To access the lockout switch, disconne ...
TB67S105FTG Usage considerations
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... Power supply voltage and usage range In using the TB67S105FTG, the voltage should be applied to the VM, VREFA, and VREFB pins. The maximum rating of VM supply voltage is 50V. Usage range of the power supply is 10 to 40V. The maximum rating of VREF voltage is 5V. Usage range of the voltage is 0 to 3. ...
Discrimination of residual-current protective
Discrimination of residual-current protective

LM555 Single Timer — Single T
LM555 Single Timer — Single T

lec6
lec6

... resistance is the ohm. Show that the unit of T=RC is the second. In the circuit analysis we are almost always interested in the behavior of a particular network called the response. In general we give the name of zero-input response to the response of the circuit with no ...
is the DC-grid voltage.
is the DC-grid voltage.

... Many electronic appliances use a DC voltage which is obtained by rectifying the 230 VAC grid voltage using a diode rectifier. The rectified voltage level equals 326 VDC which is the peak value of the 230 VAC grid voltage. By supplying directly with 326 VDC, the same appliances can be used by simply ...
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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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