Circuits & Schematics: 510

1. Cheap Sensitive Radiation Detector
   Circuits Security Measurement
   This project started out as a gag project, a Nuclear War Detector. The idea was to make a device that would flash a little red light if a nuclear attack were underway or if there were some sort of massive radiation spill right outside the house. It ...
   Apr 23, 2008

2. Build Yourself a Fan Temperature Control
   Circuits Computers and Peripherals Domestic
   Tillmann Steinbrecher CPU coolers have been getting more and more efficient over the last years. However, this higher performance usually has a price: More noise. Noise is annoing and reduces well-being and productivity - so why not do something ...
   Apr 28, 2008

3. Smart Coaster
   Circuits Domestic
   Dave Prochnow Never burn your mouth on a hot drink again No matter your poison -- coffee, tea, hot chocolate, sake -- take a gulp too soon out of the pot and chances are good that you'll burn your mouth. But build this Smart Coaster and you'll ...
   Dec 16, 2008
4. Constant-voltage load box for battery simulation
   Jon Dutra
   Circuits Measurement Supply Analog Devices LT1211
   .. be improved by replacing the top LT1004-2.5 with an LT1004-1.2 and reducing R1, the reference bias resistor, to 1k. The 510 Ω and 1.1k resistors are required for high frequency stability; they suppress a 1 MHz oscillation. The 1N5400 ...
   Jun 22, 2023
5. 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
6. 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
7. 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
8. 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
9. 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
10. 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

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