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model scd - 100 khz presettable counter with 0.43” (11 mm) led display
model scd - 100 khz presettable counter with 0.43” (11 mm) led display

... recommended that this mode also be used whenever possible with electronic sensor outputs, as added insurance. The LO FRQ mode can be used with any type of sensor output provided count pulses never decrease below 5 msec, and the count rate does not exceed 100 cps. 3. VIL and VIH levels given are nomi ...
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... As an additional feature the Rcal pins can also be used as logic inputs to disable pairs of FETs as part of a power management scheme or simply an alternative to LNA switching. Driven to a logic high (>3.0V), the inputs disable their associated FET bias stages by switching gate feeds to -2.5V and dr ...
FM3 Microcontroller Sound Output Using PWM
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... license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use ...
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... voltage of 15,000 volts. Do not touch live electrical parts. Always disconnect power source before working on the system. Avoid accidental starting. Make sure unit is turned “OFF” and is unplugged or disconnected from its power source before beginning any maintenance tasks. This product must be eart ...
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... DC Switch Output Current (IOUT) ...
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... DTMF generation is a composite audio signals of two tones between the frequency of 697Hz and 1633Hz. The DTMF keypad is arranged such that each row will have its own unique tone frequency and also each column will have its own unique tone. Below is a representation of the typical DTMF keypad and the ...
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... voltage and ambient temperature independently in the calculation of circuit breaker compensation time. . The same holds true for small variations of ambient temperature and operating pressure, in the case of hydraulic- or pneumaticoperated breakers. Large variations of dc control voltage or operatin ...
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... undervoltage lockout mode: either VCC is less than 100mV above the BAT pin voltage or insufficient voltage is applied to the VCC pin. A microprocessor can be used to distinguish between these three states—this method is discussed in the Applications Information section. Thermal Limiting An internal ...
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... clarity in voice communication applications. The LMV1091 preserves near-field voice signals within 4cm of the microphones while rejecting far-field acoustic noise greater than 50cm from the microphones. Up to 20dB of farfield rejection is possible in a properly configured and using ±0.5dB matched mi ...
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... MMA welding with rutile and basic coated electrodes: Unalloyed, lowalloy and high-alloy steels, nickel-based and copper alloys Production and repair work, metal construction, facade, heating and ventilation construction, food and chemical industries, pipeline, closed container and equipment construc ...
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... transition is the point where the most significant bit (MSB) changes from low to high and all other bits change from high to low, and vice versa. Ideally, glitches in these DACs should be as small as possible, especially in high resolution applications. The hybrid architecture will get the most adva ...
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... When testing the VSC board the power supply from the EOC to the board can be verified by measuring the voltage between pins 1 & 6 (the two outside pins) on connector P6 of the VSC board. This connector is not wired in field applications and the pins are easily accessed to test voltage while the othe ...
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... resistance for gains of 3 dB to 25 dB, easing matching and input drive requirements. The AD8352 has a nominal 100 Ω differential output resistance. ...
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... The damage caused by EOS is typically so extensive that the origin of the problem can not be determined. An initial small voltage perturbation can cascade into a large event and cause damage that overwhelms the original damage site. The analysis report will identify which package pins are damaged an ...
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... The Market Direction section highlights key products and marketing opportunities. Intended to be a practical tool to help you design-in Vishay components, this section provides information about technical specifications, product benefits, lead-times, applications, and target markets. Where possible, ...
ALP20 and ALT20/21 Series, +85°C
ALP20 and ALT20/21 Series, +85°C

... effects of both our capacitors and their production. In Europe (RoHS Directive) and in some other geographical areas like China, legislation has been put in place to prevent the use of some hazardous materials, such as lead (Pb), in electronic equipment. All products in this catalog are produced to ...
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... suppresses the other effects causing the droop. Since the input bias current of the OTA moves in a range of ±0.9 µA, the opposite behavior could be observed with another device due to the Gaussian distribution of the input bias current values within the specified range. The second reason is the vari ...
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... substation house applications, is powered from DC station supply service and even mounts side-by-side in a rack to economize valuable substation real estate. The Form 6 yard mount recloser control includes a weatherproof, steel cabinet for direct mounting on the recloser’s substation frame, while us ...
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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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