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section 16610 - uninterruptible power system
section 16610 - uninterruptible power system

ADuC812 FAQs
ADuC812 FAQs

... www.analog.com/microconverter/technotes_code.html. This calibration procedure will calibrate the ADuC812’s ADC for offset and gain errors. Q: What acquisition time is required by the ADuC812? How do I choose the proper values for the acquisition time select bits in ADCCON1? A: In nearly all cases, a ...


... computer power on? Does the PSU fan come on? You can place your voltmeter leads into an extra plug (for disk drives). It should read close to 5V (between red and black wires). A supply that you have pulled may look dead because it does not have a load on its outputs and the enable output may not be ...
MAX1570 White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump General Description
MAX1570 White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump General Description

... battery voltages. Using this topology, there is no LED brightness change during the 1x/1.5x switchover, which guarantees no flicker on the display. The switchover scheme has low hysteresis, minimizing operation in the less efficient 1.5x mode. The 1x mode produces almost no ripple, while the 1.5x mo ...
Generator Design Using MotorSolve v6
Generator Design Using MotorSolve v6

... Common design principles for motors and generators Design of outputs is different for motors and generators Optimal generator design will be different than optimal motor design • Most software tools use the fact that motors can act as generators and address only motors • Need specialized generator d ...
MMT8 9V DC power mod - Warning Will Robinson
MMT8 9V DC power mod - Warning Will Robinson

... 12V 500mA plug pack into it, with the centre pin as the + positive and the outer ring as the – negative, it will run happily! An example of this plug pack type is with Yamaha equipment – they all use outer ring neg, inner pin +. Examples are Yamaha QY series sequencers power suplies, Yamaha guitar p ...
Neon Sign Transformer
Neon Sign Transformer

... output winding is electrically connected to ground. There are different output voltages including: 2,000V, 4,000V, 5,000V, 6,000V, 7,500V, 9,000V, 12,000V and 15,000V Output currents are between 30mA and 60mA, 30mA being the most common. The theory of these Neon Sign Transformers is quite easy to un ...
Supply Regulation Techniques for Phase-Locked
Supply Regulation Techniques for Phase-Locked

PDF version - 472 kB
PDF version - 472 kB

... Th ese n otes are an evolving tip sh eet o n operation of Digitra x DCC systems. The source of these tips comes from customer qu estion s, personal experience, the internet and the Digitrax man uals and technical information. Digitrax has been prod ucing a their popular D CC system since the 1990's. ...
ics85104i.pdf
ics85104i.pdf

... NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at the output differential cross points. NOTE 3: Defined as skew between outputs on different devices operating at the same supply voltage, same temperature, and with equal load conditions. Us ...
A Low-Cost Van de Graaff Accelerator
A Low-Cost Van de Graaff Accelerator

BusWorks® XT Series Accessory Model XTA-MRNO-6 Interposing Relay Board
BusWorks® XT Series Accessory Model XTA-MRNO-6 Interposing Relay Board

FEATURES DEVICE DESCRIPTION
FEATURES DEVICE DESCRIPTION

... ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken ...
General Description Features
General Description Features

... +5V and provides up to 4.7A load current. The EV kit includes the MAX5969B IEEEM 802.3af/atcompliant network PD interface controller IC, which provides PD detection signature, PD classification signature, inrush current control, and undervoltage lockout (UVLO). The EV kit circuit receives its power ...
HMC270AMS8G/270AMS8GE
HMC270AMS8G/270AMS8GE

... Very High Isolation: 45 dB @ 6 GHz ...
Power Measurement
Power Measurement

Power Measurement
Power Measurement

... where V and I = rms values of v(t) and i(t), respectively ω = power supply angular frequency Therefore, the instantaneous power is given by a constant value VI plus the ac quantity oscillating with twice the angular frequency of the power supply; thus, the active power is simply the product VI. In t ...
User Manual CFG280 11 MHz Function Generator 070-8559-03
User Manual CFG280 11 MHz Function Generator 070-8559-03

Application Note
Application Note

... Under normal conditions the current flows easily through the conductive material, but as the current increases, the conductive particles heat up and the internal composition changes, limiting the current in the circuit. The device remains in this state until the current drops and the material cools ...
Dynaudio Professional BM12 mkIII manual.indd
Dynaudio Professional BM12 mkIII manual.indd

... The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation poin ...
Application Note 1501: Brushless Sine Drives
Application Note 1501: Brushless Sine Drives

Section [26 35 33.15] [16283]
Section [26 35 33.15] [16283]

... 1. The controller shall be a programmable unit with a single current input and single line-to-line voltage input. The controller shall measure power factor in the distribution system, and according to programmed control logic, shall connect or disconnect the required amount of capacitor stages neede ...
Model ZAC-40 - Fire Alarm Resources
Model ZAC-40 - Fire Alarm Resources

... circuit (0 dB) and a dry contact input to switch on the amplifier and activate the two zones as configured via the Zeus tool. The ZAC-40 is capable of amplifying any one of the 8 audio channels that are transmitted from the DAC-NET (Digital Audio Card-NET) via the internal digital Audio bus ASI (Aud ...
A Self-Clocked ASIC Interface for MEMS Gyroscope with 1m°/s√Hz
A Self-Clocked ASIC Interface for MEMS Gyroscope with 1m°/s√Hz

... C. Capacitance to Voltage Front End (C/V) Interface The capacitance-to-voltage front end (C/V) interface, shown in Fig. 3, is implemented using a switched capacitor amplifier. The excitation signal is applied as a square wave common-mode signal on the Proof Mass (PM) of the mechanical element. This ...
0.77 fJ/bit/search Content Addressable Memory Using Small Match
0.77 fJ/bit/search Content Addressable Memory Using Small Match

... the output inverter. Subsequently, the voltage of these nodes will be developed depending on the match result. As they are precharged close to the trip point of the inverter, sensing output can be obtained quickly. However, this approach leaves the inputs to the two inverters of each SA around the s ...
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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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