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LM340 Series Three Terminal Positive Regulators
LM340 Series Three Terminal Positive Regulators

... LM340 and Q1, the diode D1 should be physically located close to the pass transistor on the heat sink in such a manner as to keep it at the same temperature as that of Q1. If the LM340 and Q1 are mounted on the same heat sink the LM340 should be electrically isolated from the heat sink since its cas ...
Speedtronic Control Calibrator Handbook
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... Delta Electronics is introducing one of the slimmest DIN rail industrial power supplies in its class, the CliQ M DIN rail power supply series. To fulfill the demands in maritime applications, the product is designed according to major industrial and maritime (Lloyd’s Register) safety standards. Othe ...
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The Effects of Airgap Flux Density on Permanent Magnet Brushless
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... NETWORKS WITHIN THE UNITED STATES. They provide electric utilities with the ability to quickly isolate and repair failed power cable circuits saving time and cost. This paper provides a synopsis of a new coldshrink disconnectable joint recently developed for the utility market with higher reliabilit ...
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... one 70-inch AC wire harness with multi-pin connectors. The DC input wires are approximately six inches long and are terminated with single pole connectors. The AC connectors are oppositely sexed, so that multiple inverters can be connected to form one continuous AC branch circuit. When you perform t ...
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... • The vehicle cranking circuit functions to crank the engine until it can operate under its own power. • A cranking circuit is managed by a control circuit that uses low current to switch and energize a highcurrent starter motor circuit. • A starter motor converts the electrical energy of the vehicl ...
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... 2.RA series products (RF power amplifier modules) and RD series products (RF power transistors) are designed for consumer mobile communication terminals and were not specifically designed for use in other applications. In particular, while these products are highly reliable for their designed purpos ...
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... SHARP devices and are not intended to guarantee any circuit design or license any intellectual property rights. SHARP takes no responsibility for any problems related to any intellectual property right of a third party resulting from the use of SHARP's devices. · Contact SHARP in order to obtain the ...
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... The current flowing through the high-side and low-side drivers is monitored to ensure that the motor lead is not shorted to supply or ground. If a short is detected, the full-bridge outputs are turned off, flag nFAULT is driven low, and a 1.2-ms fault timer is started. After this 1.2-ms period, tOCP ...
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... together with the totem-pole current buffer. The jumper configurations are shown in Table 1 on the following page. 4. If soft turn-off evaluation is required, J13 must be left open, with no shorting jumper installed, and TP7 (Desat) has to be pulled above the desat threshold voltage. 5. Scope shots ...
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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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