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FM600 Manual - Crown Broadcast
FM600 Manual - Crown Broadcast

Multilevel Inverter for Higher Output Voltage Levels
Multilevel Inverter for Higher Output Voltage Levels

... The major advantage of this asymmetric topology and its algorithms is associated to its ability to create a substantial number of output voltage levels by using a low number of dc voltage sources and power switches but the high diversity in the magnitude of dc voltage sources is their most outstandi ...
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... The MAX629 low-power, boost DC-DC converter provides either positive or negative output voltages up to ±28V from a wide range of input voltages. It is designed primarily for use in low-power, high-voltage applications such as LCD biasing and set-top box varactor tuning. The MAX629’s unique control s ...
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... Note that as Vin exceeds Vref, the voltage at the output of the comparator switches from VL to VH and the alarm is turned on. Notice that sometime after t1 the voltage Vin begins to decrease and at time t2 is crosses Vref . Now the output of the comparator switches back to VL and the alarm is turned ...
User Manual - Far West Technology, Inc.
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... uses the information from the first comparator, U1:A for this. When the output of the electrometer goes below ground U1:A goes from high to low and the microprocessor generates a charge pulse by pulsing pin 6 (high-low-high). This causes the switch U4:B to turn on and off generating the pulse throug ...
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... active-matrix thin-film transistor (TFT) liquid-crystal displays (LCDs). Also included is a logic-controlled, highvoltage switch with adjustable delay. The step-up DC-DC converter provides the regulated supply voltage for the panel source driver ICs. The converter is a high-frequency (1.2MHz) curren ...
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... versatility and allow for several different applications: stereo headphone, multimedia headset, audio sub-carrier generator. The TSH512 integrates in a single chip low-noise audio preamplifiers with ALC (automatic level control), frequency-modulated oscillators, and linear output buffers to drive th ...
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... Feedback delay capacitor that both lowers the idle switching frequency and filters very high frequency noise from the feedback signal, which improves amplifier performance. The value of CFB should be offset between channel 1 and channel 2 so that the idle switching difference is greater than 40kHz. ...
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ZXBM5210 Description Pin Assignments

... In the brake mode, switches S2 and S4 are ON allowing the motor to stop quickly. All the internal control circuits are fully operational. In the standby mode all the output drive switches are off and additionally, the internal circuits are also turned off to minimize power consumption. The power con ...
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... datacom, and interchassis interconnect. Each channel consists of a pair of diodes that steer ESD current pulses to VCC or GND. The MAX3205E/MAX3207E/MAX3208E protect against ESD pulses up to ±15kV Human Body Model, ±8kV Contact Discharge, and ±15kV Air-Gap Discharge, as specified in IEC 61000-4-2. A ...
MAX887 100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter _______________General Description
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... The IEEE 1547 standard requires that grid-tied or utility-interactive inverters cease power production if voltage measured at the inverter terminal exceeds +10% or -12% of nominal. Enphase Microinverters, like all utility-interactive inverters, sense voltage and frequency from the AC grid and cease ...
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... An e.m.f. is made to happen (or induced) in a conductor (like a piece of metal) whenever it 'cuts' magnetic field lines by moving across them. This does not work when it is stationary. If the conductor is part of a complete circuit a current is also produced. • Faraday found that the induced e.m.f. ...
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MAX1513/MAX1514 TFT-LCD Power-Supply Controllers General Description Features

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ADP1876 英文数据手册DataSheet 下载

... Open-Drain Power-good Indicator Logic Output. PGOOD1 includes an internal 12 kΩ resistor connected between PGOOD1 and VCCO. PGOOD1 is pulled to ground when the Channel 1 output is outside the regulation window. An external pull-up resistor is not required. Soft Start Input for Channel 1. Connect a c ...
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Motor Insulation Voltage Stresses Under PWM Inverter

ADM3202 数据手册DataSheet 下载
ADM3202 数据手册DataSheet 下载

... the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance ...
SLUS746 120-V Boot, 3-A Peak, High Frequency, High
SLUS746 120-V Boot, 3-A Peak, High Frequency, High

... Utilized on the DDA and DRM packages only. Electrically referenced to VSS (GND). Connect to a large thermal mass trace or GND plane to dramatically improve thermal performance. ...
GS2613561363
GS2613561363

... the source-side voltage, the load side voltage, and the DVR injected voltage, respectively. Also, the operators I, and α are the load current, the load power factor angle, the source phase voltage angle, and the voltage phase advance angle, respectively [24]. It should be noted that in addition to t ...
Integrated Inductors for RF Transmitters in CMOS/MEMS Smart Microsensor Systems
Integrated Inductors for RF Transmitters in CMOS/MEMS Smart Microsensor Systems

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Spark-gap transmitter



A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""
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