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SP3238
SP3238

... The SP3238 device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop computers. The SP3238 uses an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump and Sipex's driver ...
Application Note on Transformers
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... secondary winding. By designer’s choice of the number of turns in the primary and secondary windings, a desired step-up or step-down voltage/current/impedance ratio can be realized. ...
Voltage and Current Measurements with a VNA and DMM
Voltage and Current Measurements with a VNA and DMM

... S-parameters, of a Device Under Test (DUT). When the DUT is passive, the VNA may be the only tool necessary. But some devices are active and require an external power source for operation. In such active applications, it may be useful to perform voltage or current measurements of the DUT as the VNA ...
Fluxgate Magnetometer
Fluxgate Magnetometer

... The VCO is the only part of the circuit that requires any further explanation. While there are integrated circuit VCOs available, it is difficult to locate any that are very low power (<1mA) and readily available from common sources (i.e., mail-order houses). Thus a simple but effective VCO was desi ...
Generator circuit breakers have special requirements for
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... Current Sharing: When multiple UPS modules are connected in parallel and powering a common load, each UPS module output current will not differ by more than 5% of the rated full load current of one UPS module. ...
TSS_WECC-100 Update
TSS_WECC-100 Update

PHYS 1443 – Section 501 Lecture #1
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... auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF is set low and EN is high, both drivers and receivers are shut off, and the supply current is red ...
Single donor ionization energies in a nanoscale CMOS channel
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... 05.04 Integrate the sound from the video system through the OEM audio system. 06.0 Demonstrate proficiency in locating and repairing common installation and electrical problems in automobiles--The student will be able to: ...
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... Some piezoresistive pressure transducers use only an unprotected silicon sensing element. Silicon is a brittle crystalline material, which can sometimes crack under severe cold transient environments. The MediaSensor™ pressure transducer uses an additional 316L stainless steel convoluted diaphragm w ...
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... stage and output buffer, before leaving the filter chip. This circuitry is in CMOS switching logic and subject to the same effects of power supply noise introducing extra timing imprecision. In the case of a two-box system, on top of these effects in the generation of the clock, it also has to survi ...
Presentation Title Here
Presentation Title Here

... In DC-DC converter topology, only Hot and Neutral lines, no CM EMI involved Involves the Normal Operation of the Circuit Does not involve Parasitics, except input / output CAP ESR and ESL Only Related to CURRENT, not voltage For example, with the same power level Buck converter, lower input voltage ...
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... algorithms are code-free but configurable through either integrated registers or external passive components, minimizing design efforts without losing the flexibility to tune for different motors. These motor control cores aim to provide the highest possible efficiency and lowest possible acoustic n ...
Section [26 35 33.13] [16282]
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... 1. The standard 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 sta ...
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TPS78225-Q1 数据资料 dataSheet 下载

... device behaves like a resistor in dropout. As with any linear regulator, PSRR and transient response are degraded as (VIN – VOUT) approaches dropout. This effect is shown in the Typical Characteristics section. See the application report Understanding LDO Dropout (SLVA207) available for download fro ...
04_DC AC Meter - UniMAP Portal
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... [1], two common materials used as capacitive storage and conductors are considered, it is therein illustrated critical magnetic field strength values up to two orders of magnitude greater than critical electric field values are readily achievable. In light of these facts, one can see that capacitive ...
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An alternator is an electrical generator that converts mechanical
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... armature type is not often used.[19] The revolving field type has magnetic field on the rotor to rotate through a stationary armature winding. The advantage is that then the rotor circuit carries much less power than the armature circuit, making the slip ring connections smaller and less costly; onl ...
TEST EQUIPMENT - acksupply.com
TEST EQUIPMENT - acksupply.com

... with AC outlet or fixture. Transmitter sends signal across the line & indicates the presence of voltage. Receiver makes loud audible tone & lights LED to confirm. 9650 TRIPLETT •COMPONENTS TESTER (LIL’ BITTY TESTER) — The GO/NO tester that fits in a shirt pocket. Test continuity, detect transistor l ...
TIG Series OPERATOR MANUAL wilkinsonstar.com DC MMA / TIG Welding  machines
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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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