59 Results for : comparator

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    High Performance Comparator Design using Hybrid PTL/CMOS Logic Style
    High Performance Comparator Design using Hybrid PTL/CMOS Logic Style ab 39.99 € als Taschenbuch: . Aus dem Bereich: Bücher, Wissenschaft, Technik,
    • Shop: hugendubel
    • Price: 39.99 EUR excl. shipping
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    Ontology-Based Automated Test Oracle Comparator for Web Applications
    Ontology-Based Automated Test Oracle Comparator for Web Applications ab 48.99 € als Taschenbuch: Ontology-Based Test Oracle. Aus dem Bereich: Bücher, Ratgeber, Computer & Internet,
    • Shop: hugendubel
    • Price: 48.99 EUR excl. shipping
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    HV9961LG-G - LED-Treiber, Konstantstromregler, SO-8
    The HV9961 is an average current mode control LED driver IC operating in a constant off-time mode. Unlike HV9910B, this control IC does not produce a peak-to-average error, and therefore greatly improves accuracy, line and load regulation of the LED current without any need for loop compensation or high-side current sensing. The output LED current accuracy is ±3 %. The IC is equipped with a current limit comparator for hiccup-mode output short circuit protection. The HV9961 can be powered from an 8.0 ... 450 V supply. A PWM dimming input is provided that accepts an external control TTL compatible signal. The output current can be programmed by an internal 275 mV reference, or controlled externally through a 0 ... 1.5 V dimming input. HV9961 is pin-to-pin compatible with HV9910B and it can be used as a drop-in replacement for many applications to improve the LED current accuracy and regulation.• Fast average current control• Programmable constant off-time switching• Linear dimming input• PWM dimming input• Output short circuit protection with skip mode• Ambient operating temperature -40 ... +125° C• Pin-compatible with the HV9910B Technical Data: • Topology: Buck• Input Voltage: 8 ... 400 V• Power: 650 mW
    • Shop: reichelt elektronik
    • Price: 1.65 EUR excl. shipping
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    HV9120NG-G - PWM-Regler, 1-fach, 10 ... 450 V, SO-14
    A unique input circuit allows the HV9120 to self-start directly from a high voltage input, and subsequently take the power to operate from one of the outputs of the converter it is controlling, allowing very efficient operation while maintaining input-to-output galvanic isolation limited in voltage only by the insulation system of the associated magnetic assembly. A ±2% internal bandgap reference, internal operational amplifier, very high speed comparator, and output buffer allow production of rugged, high performance, high efficiency power supplies of 50 W or more, which can still be over 80% efficient at outputs of 1.0 W or less. The wide dynamic range of the controller system allows designs with extremely wide line and load variations with much less difficulty and much higher efficiency than usual. The exceptionally wide input voltage range also allows better usage of energy stored in input dropout capacitors than with other PWM ICs. Remote on/off controls allow either latching or nonlatching remote shutdown. During shutdown, the power required is under 6.0 mW. • 10 ... 450 V input voltage range• 1.0 MHz clock• >20:1 dynamic range @ 500 KHz• 49% Maximum duty cycle version• Low internal noise Technical Data: • Input Voltage: 10 ... 450 V• Feedback: ±2 %• Duty Cycle: 49%• Switch: external
    • Shop: reichelt elektronik
    • Price: 2.75 EUR excl. shipping
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    PIC 12F1571-I/SN - MCU, PICmicro, 1,75 KB, 32 MHz, SO-8
    PIC12(L)F157X microcontrollers combine the capabilities of 16-bit PWMs with Intelligent Analog to suit a variety of applications. These devices deliver three 16-bit PWMs with independent timers, for applications where high resolution is needed, such as LED lighting, stepper motors, power supplies and other general-purpose applications. The core independent peripherals (16-bit PWMs, Complementary Waveform Generator), Enhanced Universal Synchronous Asynchronous Receiver Transceiver and Intelligent Analog (ADCs, Comparator and DAC) enable closed loop feedback and communication for use in multiple market segments, such as LIN applications.FeaturesEnhanced Mid-range Core with 49 Instruction, 16 Stack LevelsFlash Program Memory with self read/write capabilityHigh Endurance Flash Memory (HEF)128 B of Non-volatile Data Storage Internal clock speeds from 31kHz to 32MHz3x Standalone 16-bit PWMsComplementary Waveform Generator (CWG)4 Channel 10-bit ADC with Voltage Reference5-bit Digital to Analog Converter (DAC)Comparator2x 8-bit Timers (TMR0/TMR2)1x 16-bit Timer (TMR1)Three additional 16-bit Timers available using the 16-bit PWMsExtended Watchdog Timer (WDT)Enhanced Power-On/Off-ResetLow-Power Brown-Out Reset (LPBOR)Programmable Brown-Out Reset (BOR)In Circuit Serial Programming (ICSP)Wide Operation Voltage Variant ‘F’ (1.8V – 5.5V)eXtreme Low Power (XLP) ‘LF’ Variant (1.8V – 3.6V)
    • Shop: reichelt elektronik
    • Price: 0.85 EUR excl. shipping
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    HV9861ANG-G - Darlington Treiber, Konstantstromregler, SO-16
    The HV9861A is a patented, average-mode, constant current control LED driver IC operating in a constant off-time mode. Unlike the HV9910B, this control IC does not produce a peak-to-average error, and therefore greatly improves the accuracy, line and load regulation of the LED current without any need for loop compensation or high-side current sensing. The output LED current accuracy is ±3%. The IC is equipped with a current limit comparator for hiccup-mode output short circuit protection. Internal over-temperature protection is provided. The internally regulated voltage (VDD) for the HV9861A is 7.5 V. The IC can be powered from a 15 - 450 V supply. A PWM dimming input is provided that accepts an external control TTL-compatible signal. The output current can be programmed by an internal 270 mV reference, or controlled externally through a 0 - 1.5 V dimming input. The IC is pin-to-pin compatible with the Supertex HV9910B and HV9961, and can be used as a drop-in replacement for many applications to improve the LED current accuracy and regulation.• Fast average current control• Programmable constant off-time switching• PWM / linear dimming input• Output short circuit protection with skip mode• Ambient operating temperature -40 ... +125°C• Pin-compatible with the HV9910B and HV9961 Technical Data: • Input Voltage: 8 ... 450 V• Dimming: PWM• power: 1000 mW
    • Shop: reichelt elektronik
    • Price: 0.88 EUR excl. shipping
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    Comparators (eBook, PDF)
    This book explores circuit designs that accomplish the conversion of an analog signal to a digital signal of a single bit. Starting with the simple comparator, many alternative circuit arrangements and enhancements are elaborated, including hysteresis, negative feedback and a variety of adaptive thresholds. Further, the non-ideal behavior of practical elements and circuits are covered, including input offsets, noise, delay, delay dispersion and oscillation, along with techniques for dealing with these aspects. The wide variety of available components is discussed in terms of performance and applicability. No stone is left unturned in addressing each and every issue that can affect the engineering tasks related to comparators, from the viewpoint of how their performance can affect the system in which they are a critical component.
    • Shop: buecher
    • Price: 65.95 EUR excl. shipping
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    Current Differencing Transconductance Amplifier and their Applications
    Current Differencing Transconductance Amplifier and their Applications ab 48.99 € als Taschenbuch: CDTA based LPF HPF BPF Comparator Quadrature Oscillator. Aus dem Bereich: Bücher, Wissenschaft, Technik,
    • Shop: hugendubel
    • Price: 48.99 EUR excl. shipping
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    STM32G474E-EVAL1 - Entwicklungsboard, STM32G474QET6U, TFT, Motorsteuerungsmodul
    BeschreibungDas STM32G474E-EVAL Board ist eine komplette Demo- und Entwicklungsplattform für den STMicroelectronics Arm® Cortex®-M4 Core basierten STM32G474QET6U Mikrocontroller, der die Entwicklung von Benutzeranwendungen erleichtert.STM32G474E-EVAL1 verfügt über eine Konfigurationsplatine für die Motorsteuerung. Die gesamte Palette der auf dem Board verfügbaren Hardwarefunktionen hilft den Anwendern, die Anwendungsentwicklung zu verbessern und alle Peripheriegeräte zu bewerten (USB FS, UCPD, USART, Audio, ADC und DAC, differentieller ADC, TFT LCD, Potentiometer/LDR, SRAM, Quad-SPI, Flash-Speichergerät, microSD™-Karte, Smartcard, FDCAN-Transceiver, High Brightness LED, Motorsteuerungsstecker, Temperatursensor und andere).Erweiterungsleisten ermöglichen den einfachen Anschluss an die Tochterplatine, für bestimmte Anwendungen.Das Board verfügt über STLINK-V3E als integrierten In-Circuit-Debugger und Programmiergerät, für die STM32 MCU und die USB Virtual COM Port Bridge.FeaturesCommon features• 240x320 TFT color LCD display module with SPI interface• 16-Gbyte microSD. card bundled• On-board current measurement• SAI audio codec• Temperature sensor• 8-Mbit (512 K x 16-bit) SRAM• Two 512-Mbit Quad-SPI NOR Flash memories• Four color user LEDs• One high brightness LED• Reset and wake-up / tamper buttons• 4-direction joystick with selection button• Light-dependent resistor (LDR)• Potentiometer• Access to comparator and operational amplifier• Board connectors:- Analog line input jack- Stereo headset jack- Two connectors for external speakers- microSD. card- EXT_I2C connector supporting I2C bus- RS-232 port configurable for communication or MCU flashing- RS-485 port- USB Type-C. port supporting USB FS Device- Two CAN 2.0A/B-compliant ports- Connector for DAC output- JTAG/SWD connector- ETM trace debug connector- User interface through USB virtual COM port- Embedded STLINK-V3E debug and flashing facility- TAG connector 10-pin footprint- ArmR CortexR 10-pin 1.27 mm-pitch debug connector over STDC14 footprint- Coin cell battery holder• Board expansion connectors:- Two sets of motor control expansion connectors- Board expansion extension connectors• Flexible power-supply options:- ST-LINK USB VBUS, external sources, USB Type-C. connector, ordaughterboard• On-board STLINK-V3E debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port• Microcontroller supply voltage: fixed 3.3 V or adjustable range from 1.62 V to 3.6 V• Comprehensive free software libraries and examples available with the STM32CubeG4 MCU Package• Support of a wide choice of integrated development environments (IDEs) including IAR™, Keil®, GCC-based IDEsBoard-specific features• STM32G474QET6U microcontroller with 512 Kbytes of Flash memory and 96 Kbytes of RAM in LQFP128 package(STM32G474E-EVAL and STM32G474E-EVAL1)• STM32G474E-EVAL1 is the board to use for motor control application with solder bridge and resistor configuration• STM32G484QET6U with cryptography (STM32G484E-EVAL)• Fully compatible with all microcontrollers of the STM32G4x1 and STM32G4x3 lines with ''QET6'' part number suffix
    • Shop: reichelt elektronik
    • Price: 402.85 EUR excl. shipping

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