The LT3955 features an internal 3.5 amp (A), 80VN channel metal-oxide-semiconductor field-effect transistor (MOSFET) and can drive up to 12 sets of 300 milliamper (mA) white LEDs from a nominal 12 volt input to provide over 20 Watt power.
It has a built-in high-voltage current sense, so you can use boost, buck, buck-boost mode or SEPIC architecture. The LT3955 offers over 94% efficiency in a boost architecture, eliminating the need for external heat sinks. Frequency-adjustable pins allow the user to set the frequency between 100kHz and 1MHz, thus maximizing efficiency and minimizing the size and cost of external components, combined with a 5mm (mm) x 6mm square plane without leads Package (QFN).
The LT3955 features an internal PWM generator that provides up to a 25:1 dimming ratio or an external PWM signal for up to 3000:1 dimming ratio.
For non-critical dimming applications, the CTRL pin can be used to provide a 10:1 analog dimming range. The fixed frequency, current mode architecture provides stable operation over a wide range of power and output voltages. Output short-circuit protection and open-circuit LED protection further enhance the reliability of the system. The LT3955's ground reference FB pin can be used as an input for several LED protection features and allows the converter to be used as a constant voltage source for charging applications.
Agricultural Machinery Accessories Parts
Agricultural machinery parts more generally summarizes the machinery parts associated with agricultural production, the coverage is very wide. Such as: tractor power mechanical parts, tires, bucket, etc., harvester including potato harvester, peanut harvester, agricultural machinery and tools (pear. Take the plough as an example, the plough includes the disc plough, moldshare plough, animal force plough, the component of the whole machine includes the plow tip, the plow leg, the plow share, the plow piece and so on. Related industries, the production of supporting products accessories can be called agricultural machinery accessories.
What are common agricultural machinery accessoriesNow rural use of agricultural machinery is common, in the job, because of farmland environment is bad, so most of farm machinery accessories used are consumables, need to change regularly, in order to avoid failure, farm machinery accessories usually used are:1, agricultural tiresQualified agricultural tires tues both sides have the trademark, model, specification, layer number and the cord material etc, and clear, eye-catching, some still carries with production and inspection chapter; Inner surface should be smooth with brightness, the hand has the elasticity. If the tyre surface identification is not complete or fuzzy, inner tube lacklustre, tire body thin and uneven thickness, hand inelastic, is defective.2, threadProduct appearance should be bright and clean without rust, without defects, continuous spiral arm, no burr, no crack. Will be specimen and standard accessories spinning together, should be able to spin to the terminal, and no card lag phenomenon in the process of precession; Spin after flipping the fittings should be without shaking and sound, and if the thread has defects such as corrosion, crack, burr, spin the move after fitting will shake, for inferiority of quality.3, the gearQualified gear packing should be in good condition, tooth surface should be smooth and no cutting marks, no burr, and coated with anti-rust oil or wax, gear profile usually have code, with a hacksaw blade broken crop row gear face, should be no scratches or only a fine scratches. If the gear surface have burr, notching, rust, sharp strokes with sawdust and Nick (insufficient hardness), the poor quality.4, V beltQualified V belt surface is smooth, seamless joint glue, outside the circle on a clear trademark, specification, manufacturer name and logo, the length of the same type of V belt should be consistent.If the V belt look rough, uneven glue joint or openings, shade thrum exposed edges, no marks or blur, the V belt length is differ, it is false and inferior product.5, V belt wheelQualified V belt wheel surface porosity, crack, grooved smooth, V belt buckle grooved, V belt is slightly higher than that of slot and the bottom of the V belt is not drain contact. If discover wheel blowhole defects such as trough, the groove surface shape and qualified V belt do not form a complete set, it is bad.
Agricultural cnc machining,metal parts
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