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... case of mixed logic, such as when a MOS line runs parallel to an ECL or PCI bus, less coupling should be allowed. See Reference 3. ...
FUTURE ANALYSIS TOOLS FOR POWER QUALITY P. Ribeiro, R
FUTURE ANALYSIS TOOLS FOR POWER QUALITY P. Ribeiro, R

Setting the PI Controller Parameters, KP and KI
Setting the PI Controller Parameters, KP and KI

Earth fault relays with separate toroids Vigirex Merlin Gerin
Earth fault relays with separate toroids Vigirex Merlin Gerin

... voltage AC installations. When the residual current detected by the toroid exceeds a certain threshold, referred to as the residual operating current In, the Vigirex relay trips the associated circuit breaker via a voltage release on the breaker. The control signal issued by the relay may be instant ...
Progress in high-power high-efficiency VCSEL arrays [7229-2]
Progress in high-power high-efficiency VCSEL arrays [7229-2]

... configuration to generate a single-transverse mode at 1064nm. Green light (532nm) is then obtained by intra-cavity second harmonic generation using a frequency doubling crystal (such as ppLN) located inside the cavity. These can be fabricated in very compact modules as part of RGB sources for micro- ...
Fuel Cell Specification Notes
Fuel Cell Specification Notes

ENG 220 LAB -2
ENG 220 LAB -2

... Lab # 2 ENG 220-001 Name: ...
Manual - Syntechtron
Manual - Syntechtron

... to meet a variety of environmental conditions or applications requiring a higher degree of protection. If at all possible, the Controller should be installed at a location where it will receive good ventilation. The life of most electrical components is reduced when operating in an atmosphere of int ...
sealed lead-acid batteries
sealed lead-acid batteries

... Proper battery selection for a specific application can be made from this graph if the required time and current are known. For example, to determine the proper capacity of a battery providing 3 amps for 20 minutes, locate the intersection of these values on the graph. The curve immediately above th ...
SP486 数据资料DataSheet下载
SP486 数据资料DataSheet下载

... differential line drivers meeting RS-485 and RS-422 standards. The SP486 features active high and active low common driver enable controls; the SP487 provides independent, active high driver enable controls for each pair of drivers. The driver outputs are short-circuit limited to 200mA. Data rates u ...
Ignition Analysis - Snap-on
Ignition Analysis - Snap-on

... kilovolts and represents the amount of voltage required to start a spark across the spark plug gap. Firing voltage must overcome secondary circuit resistance including secondary cables (if present), rotor gap(if present) and the spark plug. Remember that the spark plug air gap is typically the highe ...
TPA2035D1 数据资料 dataSheet 下载
TPA2035D1 数据资料 dataSheet 下载

... The TPA2035D1 is a 2.75-W high efficiency filter-free class-D audio power amplifier in an approximately 1.5-mm × 1.5-mm wafer chip scale package (WCSP) that requires only one external component. The pinout is the same as the TPA2010D1 (SLOS417) except that the external gain setting input resistors r ...
DAC 1 - godinweb
DAC 1 - godinweb

... Digital to Analog Converters ◊ Digital to Analog Converters take a digital value and convert it to voltage or current over time. ◊ Converting discrete values to analog values has some challenges. Invariably, the analog value will retain some of the discrete steps from the digital value. ◊ Note that ...
Slide 1 - University of California, Berkeley
Slide 1 - University of California, Berkeley

... M1 and M2 have the same VGS If we neglect CLM (λ=0), then the drain currents are equal Since λ is small, the currents will nearly mirror one another even if Vout is not equal to VGS1 We say that the current IREF is mirrored into iOUT Notice that the mirror works for small and large signals! Universi ...
MAX3320A/B/L/T 3V to 5.5V, up to 250kbps True RS
MAX3320A/B/L/T 3V to 5.5V, up to 250kbps True RS

... Tables 1 and 2 and Figure 2 summarize the MAX3320’s operating modes. FORCEON and FORCEOFF override the automatic circuitry and force the transceiver into its normal operating state or into its low-power standby state. When neither control is asserted, the IC enters AutoShutdown Plus mode and selects ...
Three-phase Transformers
Three-phase Transformers

AP4312 Description Pin Assignments
AP4312 Description Pin Assignments

... The AP4312 contains one 1.21V voltage reference, one low voltage reference used in current sensing circuit and two operational amplifiers. The 1.21V voltage reference, combined with one operational amplifier, makes of an ideal voltage controller for use in adapters and battery chargers. The low volt ...
Benefits of IGBT Technology versus SCR Dimming
Benefits of IGBT Technology versus SCR Dimming

... An IGBT dimmer actively regulates both the VOLTAGE and the CURRENT supplied to its load. ...
MCS2000-PSDRV2 Power Supply/Dual Voltage/Dual Channel Driver
MCS2000-PSDRV2 Power Supply/Dual Voltage/Dual Channel Driver

... Each driver channel has its own individual anti-residual adjustment to make brake adjustment in the “off” state optimum. Anti-residual provides a reverse current to the brakes in the off state to minimize residual magnetism build up. This allows for reducing the drag torque in the brake during initi ...
Fault Tolerant Three-Phase AC Motor Drive Topologies: A
Fault Tolerant Three-Phase AC Motor Drive Topologies: A

DIVISION 16 - ELECTRICAL
DIVISION 16 - ELECTRICAL

basics_of_power_qual.. - IDEAL INDUSTRIES, INC.
basics_of_power_qual.. - IDEAL INDUSTRIES, INC.

Load-Side Grid Management: Power Monitoring and Load
Load-Side Grid Management: Power Monitoring and Load

FPM2750QFN LOW-NOISE HIGH-LINEARITY BALANCED AMPLIFIER MODULE Features
FPM2750QFN LOW-NOISE HIGH-LINEARITY BALANCED AMPLIFIER MODULE Features

... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
Eco-mode: Benefits and Risks of Energy-saving Modes
Eco-mode: Benefits and Risks of Energy-saving Modes

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Buck converter



A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.
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