Abstract: A laser module designer can use a fixed resistor, mechanical POT, digital POT, or a digital-to-analogconverter (DAC) to control the laser driver's modulation and bias currents. The advantages of a programmablemethod (POT or DAC) are that the manufacturing process can be automated and digital control can be applied(e.g., to compensate for temperature). Using POTs can be a more simple approach than a DAC. There can be aslight cost advantage to using a POT, but this is usually not significant relative to other pieces of the design.Using a DAC can offer advantages, including improved linearity (translating to ease of software implementationand ability to hit the required accuracy), increased board density, a wider range of resolutions, a betteroptimization range, ease of use with a negative voltage laser driver, and unit-to-unit consistency
上傳時間： 2013-11-13
上傳用戶：ca05991270
Manejo del POTenciómetro con el comando POT, utilizando el PIC16F84A
標簽： Comando POT
上傳時間： 2015-05-06
上傳用戶：hanies
Abstract: This tutorial discusses methods for digitally adjusting the output voltage of a DC-DC converter. The digital adjustmentmethods are with a digital-to-analog converter (DAC), a trim POT (digital POTentiometer), and PWM output of a microprocessor.Each method is assessed and several DACs and digital POTentiometers presented.
上傳時間： 2013-11-20
上傳用戶：zycidjl
Abstract: A resistive feedback network is often used to set the output voltage of a power supply. A mechanical POTentiometer (POT)conveniently solves the problem of adjusting a power supply. For easier automatic calibration, a mechanical POT can be replaced witha digital POT. This application note presents a calibration solution that uses a digital POT, because digiPOTs are smaller, do not movewith age or vibration, and can be recalibrated remotely. This proposed solution reduces the susceptibility of the system to thetolerance of the digital POT's end-to-end resistance, making the solution optimal fordesigners. This application note also explainssome of the equations required to calculate the resistor chain values and to use a digital POT in this way. A spreadsheet withstandard reisistor values is available for easy calculations.
上傳時間： 2013-10-31
上傳用戶：caiguoqing
電阻類3D封裝表貼插裝電阻可調電阻功率電阻封裝庫AD庫PCB庫共100個（ALTIUM 3D封裝庫），列表如下：Component Count : 100Component Name-----------------------------------------------FLQ-0R03FLQ-40A-75mVFLQ-50-3FLQ-50AFLQ-60A-75mVFLQ-OAR5R005FLFFUSE-1210FUSE-1808FUSE-2920IGBT-BSM200GB60DLCIGBT-FF200R12KT4R0.5WR0.25wR1/1-HR1/2-HR1/2-VR1/4-HR1/4-VR1/8R1/16R1W -LR1W-WR2W-LR2W-WR2W-W-1R3W-HR3W-VR608XAR0402R0402SR0603R0805R1206R1210R1808R1812R2010R2512RD20D561KRES ADJ1RES ADJ2RES ADJ3RES-3224WRES-3296PRES-3296WRES-3296XRES-POT-TRRES-POT4MM-2RES-POT3306FRES-RK16312RES-RP8RES-RP9RES-RT-PJ-3314JRES-RV3224WRES-RV3296PRES-RV3296WRES-RV3296XRES-RV3386RES-VR-3RES-VR1RES-VR2RES-VR3RES-VR4RES-VR5RES-VR6RES-VR3296PRES-VR3296WRES-VR3296XRES-VR3306RES-VR3362PRES-VR3362WRES-VR3386RGG-5W-VRGG-5W-WRGG-5W-W-2RGG-10W-WRGG-10W-W -2RGG-20W-Wrgg-R3W-WRGG-R5W-TRGG-R5W-Vrgg-R5W2-wRX21-8WRX27-1VRX27-5W-LRX27-5W-WRX27-7WTVR-5DTVR-7DTVR-10DTVR-14DTVR-14D-NTCTVR-20DTVR-RD15TVR-RD20TVR-RV0.6TVR-RV7DTVR-RV8D-20TVR-RV14DTVR-RV20D
上傳時間： 2022-01-06
上傳用戶：wangshoupeng199
