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Simple Analog Signal Chaotic Masking and Recovery
Simple Analog Signal Chaotic Masking and Recovery

... two chaos generators in spice before the rest of the circuit was hooked up to them, their synchronization was a perfect line—not surprising in a simulation environment with ideal components. Interestingly, once the rest of the circuit was included and everything was running, even spice deviated from ...
ZXCT1009  HIGH-SIDE CURRENT MONITOR Description
ZXCT1009 HIGH-SIDE CURRENT MONITOR Description

... FZT789A. The circuit can be configured to charge up to four Li-Ion cells at a charge current of 1.25A. Charge can be terminated on maximum voltage, selectable minimum current, or maximum time out. Switching frequency of the PWM loop is approximately 120kHz. The ZXCT1009 is intended as a direct funct ...
BD3925(H)
BD3925(H)

... parasitic diode or transistor. For example (refer to figure below): When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode. When GND > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of ...
Interleaved Power Factor Correction
Interleaved Power Factor Correction

TPS54325 数据资料 dataSheet 下载
TPS54325 数据资料 dataSheet 下载

... (internal soft start becomes greater than feedback voltage (VFB), the controller slowly activates synchronous rectification by starting the first low side FET gate driver pulses with a narrow on-time. It then increments that on-time on a cycle-by-cycle basis until it coincides with the time dictated ...
AN-9742 Device Selection Guide for Half-Bridge Welding Machine (IGBT & Diode) Summary
AN-9742 Device Selection Guide for Half-Bridge Welding Machine (IGBT & Diode) Summary

... and efficiency improvement. Of these topologies, halfbridge is the most commonly used for small form factor, less than 230A capacity welding machines. Compared to fullbridge topology with the same power rating, half-bridge requires more transformer wiring and higher current capacity of inverter; but ...
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... either the magnetic field or the conductor. Variations in current level (or amplitude) induces voltage in a conductor because the variations of current and its magnetic field are equivalent to the motion of the flux. Thus, the varying current can produce induced voltage without the need for motion o ...
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... This usually consists of two three phase converter bridges connected in series to form a 12 pulse converter unit as shown in above figure. The total number of valves in such a unit is twelve. The valves can be packaged as single valve, double valve or quadrivalve arrangements. Each valve is used to ...
Accidents in home and environment
Accidents in home and environment

... • Flash burns – typically superficial • Contact burns – may be negligible surface burning but deeper tissue damage due to the conduction of electricity through tissue plains. These burns can be further divided into high tension or voltage and low tension/ voltage burns. • Electrical conduction throu ...
A4954 - Elecanisms
A4954 - Elecanisms

... The A4954 is designed to operate two DC motors. The output drivers are all low-RDS(on) , N-channel DMOS drivers that feature internal synchronous rectification to reduce power dissipation. The current in each of the two output full bridges is regulated with fixed off-time pulse width modulated (PWM) ...
Patch-clamp amplifiers on a chip - e-Lab
Patch-clamp amplifiers on a chip - e-Lab

Common Mode Feedback Analysis for EIT Systems
Common Mode Feedback Analysis for EIT Systems

... Abstract. The use of differential voltage measurements is widely used in EIT instruments. Instrumentation amplifiers are always affected by common mode voltages at their input. These voltages may have different origins, being the current sources and multiplexers the ones which contribute the most. H ...
DATA  SHEET BZA900A-series Quadruple ESD transient voltage suppressor
DATA SHEET BZA900A-series Quadruple ESD transient voltage suppressor

... Suitability for use ⎯ NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result i ...
XR250 351
XR250 351

... relays also have a contact for pre-closing supervision, where a circuit breaker is prevented from being closed if trip relays have not been reset. BEBS S15 scheme H7 is applicable to trip circuit voltages of 125Vd.d. and 240Vd.c. Description Type XR relays are developments for specific applications ...
Method for measurement of the sensitivity of crystal resonators to
Method for measurement of the sensitivity of crystal resonators to

... measurement using synthesizer and spectrum analyzer With the crystal under vibration at a frequency fv, the resulting spectrum consists of the synthesizer output frequency f0 together with upper and lower sidebands at f0 + fv and f0 – fv , in addition to a series of higher order terms. Any imbalance ...
Integrated Systems
Integrated Systems

... and architectures, and digital and mixed-signal circuits, as well as early interaction with research on novel devices. This early circuit design with novel devices, such as nano electro mechanical relays or silicon photonic devices, provides both a general framework for the evaluation of device impa ...
Advel PSUs - Indico
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ISSCC 2017 Digest of Technical Papers
ISSCC 2017 Digest of Technical Papers

... simplifies the transmitter system by eliminating the intermediate frequency stage. It also offers the opportunity to address the extensive range of cellular bands with the same architecture and building blocks. Direct synthesis of carriers in the 5 to 6GHz unlicenced bands remains a challenge for RF ...
Thomson Cathode Ray Tube Experiment (new VCL lab)
Thomson Cathode Ray Tube Experiment (new VCL lab)

AND8146/D High Current LED − Capacitive Drop Drive
AND8146/D High Current LED − Capacitive Drop Drive

... energy needed for the same lumen output, as the filter will attenuate the light output substantially. Therefore color LEDs are the most efficient way to obtain colored light. White LEDs have the same efficiency as incandescent lamps, but are less efficient than fluorescent lamps. The white LEDs have ...
From 0.3 sec. Up to 1 min. CYCLIC TIMER
From 0.3 sec. Up to 1 min. CYCLIC TIMER

... OPERATING-QUIESCENT CYCLE. The I-110 circuit has two times. Operating time (when the relay will be connected) and quiescent time (when the relay will not be connected between two operating time). To select operating and quiescent times you have to adjust potentiometers inserted in the P.C.B. When th ...
RF3229 QUAD-BAND GMSK TXM, 2 RX AND 3 UMTS SWITCH PORTS Features
RF3229 QUAD-BAND GMSK TXM, 2 RX AND 3 UMTS SWITCH PORTS Features

... be driven directly from the transceiver DAC to provide very predictable power control, enabling handset manufacturers to achieve simple and efficient phone calibration in production. Additional Features Current Limiter During normal use, a mobile phone antenna will be subjected to a variety of condi ...
RSGB Review of ACOM 1000 and ACOM 2000A
RSGB Review of ACOM 1000 and ACOM 2000A

BD8153EFV
BD8153EFV

... However, 10 µs is the rough calculation value of the DC/DC response speed. Please set the capacitance considering the sufficient margin so that these two values are within the standard value range. (3) Selecting the Input Capacitor Since the peak current flows between the input and output at the DC/ ...
Current Sensing in Pass Transistor
Current Sensing in Pass Transistor

... circuits [6]. Traditional design methodologies tend to concentrate more on active power and often overlook standby or leakage power. However, as transistors scale, it is predicted that leakage power will at some point dominate the overall power consumption [6]. To overcome leakage, new circuit topol ...
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Islanding

Islanding refers to the condition in which a distributed generator (DG) continues to power a location even though electrical grid power from the electric utility is no longer present. Islanding can be dangerous to utility workers, who may not realize that a circuit is still powered, and it may prevent automatic re-connection of devices. For that reason, distributed generators must detect islanding and immediately stop producing power; this is referred to as anti-islanding.The common example of islanding is a grid supply line that has solar panels attached to it. In the case of a blackout, the solar panels will continue to deliver power as long as irradiance is sufficient. In this case, the supply line becomes an ""island"" with power surrounded by a ""sea"" of unpowered lines. For this reason, solar inverters that are designed to supply power to the grid are generally required to have some sort of automatic anti-islanding circuitry in them.In intentional islanding, the generator disconnects from the grid, and forces the distributed generator to power the local circuit. This is often used as a power backup system for buildings that normally sell their excess power to the grid.
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