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Impedance Matching
Impedance Matching

... matching only matches the “real” part of the impedance. If there is a large amount of reactance in the load, a transformer will not eliminate these reactive components. In fact, a transformer may exaggerate the reactive portion of the load impedance. This reactive component results in power that is ...
Digital Servo Amplifier
Digital Servo Amplifier

MAX6391/MAX6392 Dual-Voltage µP Supervisory Circuits General Description Features
MAX6391/MAX6392 Dual-Voltage µP Supervisory Circuits General Description Features

... An external resistive-divider network is required at RESET IN2 for most applications. The divider resistors, R3 and R4, may be calculated by the following formula: VRST = VTH2 ✕ (R3 + R4)/R4 where VTH2 = 625mV (internal reference voltage) and VRST is the desired reset threshold voltage. R4 may be se ...
2.5 Electrical Power 2.5.1 Class 1E Emergency Power Supply System
2.5 Electrical Power 2.5.1 Class 1E Emergency Power Supply System

... EPSS switchgear, load centers, MCCs, and transformers listed in Table 2.5.1-2 are rated to withstand fault currents for the time required to clear the fault from its power source. ...
Digital Electronics Demystified - (Malestrom)
Digital Electronics Demystified - (Malestrom)

3-Wire RTD Measurement System Reference Design,
3-Wire RTD Measurement System Reference Design,

... As the equations in Section 2.2.2 show, the two current sources must be exactly matched to successfully cancel the lead resistances of the RTD wires. While initial matching of the current sources is important, any remaining mismatch in the two sources can be minimized by using a multiplexer to swap, ...
98 - Radiation From a PCB with Coupling Between a Low
98 - Radiation From a PCB with Coupling Between a Low

... and data traces) and low hequency signal traces (analog signal traces, reference voltage traces and traces for analog power supply) are placed on signal planes. These traces are closely routed to each other on the high-density assembled PCB. If digital signal traces couple to low frequency signal tr ...
Complex Numbers, Phasors and Circuits
Complex Numbers, Phasors and Circuits

... frequency and phase information. Direct solution of the timedependent differential equation is only necessary for transients. Integro-differential equations ...
l06051engd
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... Spring clamp terminals are highly reliable and can be easily wired. •The FR-E700-SC series is compliant to the EU Machinery Directive without the addition of previously required external devices. Operation of an external Emergency Stop device results in a highly reliable immediate shutoff of the D70 ...
SiC Power Device Catalog
SiC Power Device Catalog

... ROHM has developed SiC modules capable of operating at thigh temperatures for inverter driving in automotive systems and industrial devices. These transfer mold modules are the first in the industry to ensure stable operation up to 225℃ while maintaining the compact, low-cost package configurations co ...
LIEBERT TRANSIENT VOLTAGE SURGE SUPPRESSOR
LIEBERT TRANSIENT VOLTAGE SURGE SUPPRESSOR

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Presentation ceci est un test this a verification

... Single sided microstrip detectors CMS tracker module ...
Standard-compliant switchgear and controlgear production
Standard-compliant switchgear and controlgear production

... Many of the verifications required for IEC 61439 refer to a combination of different products and components in a switchgear and controlgear assembly. For example, evidence of protective circuit function requires testing of a defined protective circuit arrangement in a defined enclosure construction ...
UG184: EFR32 Flex Gecko 2400/434 MHz Wireless
UG184: EFR32 Flex Gecko 2400/434 MHz Wireless

... 4.2 Expansion Header On the right hand side of the board an angled 20-pin expansion header is provided to allow connection of peripherals or plugin boards. The connector contains a number of I/O pins that can be used with most of the EFR32 Flex Gecko's features. Additionally, the VMCU, 3V3 and 5V po ...
CY3273 - Cypress Semiconductor
CY3273 - Cypress Semiconductor

Comet 40-150kVA
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... This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment ge ...
MAX9311/MAX9313 1:10 Differential LVPECL/LVECL/HSTL Clock and Data Drivers General Description
MAX9311/MAX9313 1:10 Differential LVPECL/LVECL/HSTL Clock and Data Drivers General Description

... The MAX9311/MAX9313 are low skew, 1-to-10 differential drivers designed for clock and data distribution. A 2:1 mux selects between the two differential inputs, CLK0, CLK0 and CLK1, CLK1. The 2:1 mux is switched by the single-ended CLKSEL input. A logic low selects the CLK0, CLK0 input. A logic high ...
Design Specification for QuickPost
Design Specification for QuickPost

software techniques for compensating st7 adc errors
software techniques for compensating st7 adc errors

... It is always recommended to shut down the ADC before entering the HALT mode. When exiting from HALT mode, put the ADC ON again. The stabilization time for the ADC, after exiting from HALT is specified in the datasheet. 1.7 USING A TIMER TO MAKE PERIODIC CONVERSIONS Some applications may have special ...
14-Output Clock Generator AD9516-5  FEATURES
14-Output Clock Generator AD9516-5 FEATURES

... The AD9516-5 is available in a 64-lead LFCSP and can be operated from a single 3.3 V supply. An external VCO, which requires an extended voltage range, can be accommodated by connecting the charge pump supply (VCP) to 5.5 V. A separate LVPECL power supply can be from 2.375 V to 3.6 V (nominal). The ...
Resolving EMI Issues to Optimize Accelerator
Resolving EMI Issues to Optimize Accelerator

... EMI disturbances from HVCM operation had already been observed in the timing and other data systems. By tracking HVCM noise currents with a small single turn magnetic field probe coil and a scope, a significant low impedance EMI field source generated by 60 kHz currents flowing in the unshielded DC ...
ADXL344 - Analog Devices
ADXL344 - Analog Devices

... sensing detects single and double taps in any direction. Free-fall sensing detects if the device is falling. Orientation detection reports four- and six-position orientation and can trigger an interrupt upon change in orientation. These functions can be mapped individually to either of two interrupt ...
2 Faults, types and effects 2.1 The development of simple distribution systems
2 Faults, types and effects 2.1 The development of simple distribution systems

... first peak can be as high as 2.55 times the steady-state level (see Figure 2.7). ...
Measurement of very-low frequency noise
Measurement of very-low frequency noise

... stochastic process as observed on one sample can be ultimately indentified with corresponding averages on an ensemble of samples, leads to the consideration of an ergodic process. In general, a stochastic process is said to be ergodic, if the time-averaged mean value of a sample (equation (1.1)) and ...
FT245BM Designers Guide
FT245BM Designers Guide

... Figure 4.0 is an example of a 3.3 volt, USB bus powered design using the FT245BM connected to a 3.3v MCU or other external logic. • The main difference between this circuit and the 5 volt circuit of Figure 1.0 is that a 3.3 volt LDO regulator i.c. is used to provide a 3.3v supply to the auxiliary ci ...
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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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