Circuits & Schematics: 510 - 2

11. Voltage reference improves JFET
    Circuits Analogue Design Supply National Semiconductor LM4130
    .. Impact on accuracy for I SRC I SRC (mA) R 1 (Ω) Accuracy-error range (%) Temperature-coefficient range (ppm/ C) 4.066 510 0.4 75 2.098 1k 0.6 95 1.074 2k 1.0 135 0.255 10k 3.0 380 0.126 27k 6.0 980 Figure 3 compares the overtemperature ...
    Jul 22, 2021

12. Frequency source feeds entire lab
    Mitchell Lee
    Circuits Oscillators Measurement Analog Devices LT6551
    .. HP10811A component oscillator for the Colpitts oscillator. Connect the HP10811A's output through a 510 Ω resistor and a 10-nF coupling capacitor, directly to the emitter of Q 2 . If you need more than four ...
    Dec 14, 2020

13. JFET cascode boosts current-source performance
    Circuits Analogue Design Measurement Supply Texas Instruments LM4132
    .. current, make sure not to exceed Q 1 's maximum power dissipation. Figure 2. Setting R 1 to values of 1 kW, 750 W, and 510 W delivers output currents of approximately 1.8, 2.5, and 3.6 mA that are insensitive to a wide range of ...
    Feb 15, 2018
14. Hybrid Switching/Linear Method Yields LED-Current Controller with Wide Dimming Ratio
    Thomas Mosteller
    Circuits Supply Light Linear Technology LT3083 LT6015 LT8614 LTM8042
    .. the current in the OUT terminal very precisely until it reaches a minimum load value of about 500 uA. The LT3083 needs 510-mV worst-case dropout voltage from IN to OUT, as well as 300 mV for R5 at maximum current. The LT8614 holds the ...
    Jun 21, 2017
15. Design Notes: 42 V 2.5 A Synchronous Step-Down Regulator with 2.5 μA Quiescent Current
    Circuits Supply Power Linear Technology LT8610 LT8611
    Linear Technology Design Note 504 Introduction The LT8610 and LT8611 from Linear Technology are 42 V, 2.5 A synchronous step-down regulators that meet the stringent high input voltage and low output voltage requirements of automotive, industrial, ...
    Sep 9, 2014
16. A diode ladder multiplies voltage under software control
    William Grill
    Circuits Supply Microcontrollers Usage Power
    An eight-pin micro multiplies, monitors, and delivers a boosted voltage to a load The circuit in this Design Idea uses a Microchip PIC12F510 controller to drive a voltage multiplier ladder and a single pin to output status and to input a trigger ...
    Mar 30, 2012
17. Wireless Power Demo Circuit
    Circuits Power
    Alan Yates A lot of people have been asking me for the circuit of the demonstration TX I used in the video, so here it is: This is *not* an efficient design and is meant as a demonstration only. The compression trimmer should be fairly high ...
    Nov 11, 2011
18. Quick Key Adapter, 10 Button HID Keyboard. Part 1. Schematic and PCB
    Circuits Interfaces Computers and Peripherals Microcontrollers Usage
    ChromationSystems This Instructable covers creating a USB connected Human Interface Device Keyboard that has 10 button inputs which are mapped to key combinations in the firmware. Key combinations can be quickly accessed without using the keyboard ...
    Sep 7, 2011
19. 0-1000 Volt Regulated High Voltage Power Supply
    Circuits High Voltage Supply Power
    Input voltage from high voltage DC DC converter is 12V AC at 800mA current and then converted to DC through a bridge rectifier Diode 1A. The voltage output of converter circuit can be adjusted in the range of 0-1000V DC. This high voltage DC DC ...
    Dec 15, 2010
20. Introduction to 74HC595 shift register - Controlling 16 LEDs
    Circuits Microcontrollers Usage Beginners 74HC595
    .. PC0 to DS PC1 to ST_CP Pc2 to SH_CP These are the blue wires shown below. Next we connect up the LEDs and resistors. I used 510 Ohm resistors, but a range of other sizes are acceptable. ohmslawcalculator.com has a great LED Resistor Calculator ...
    Jun 4, 2010

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