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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Resources by crutschow

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DIP Switch Detection Using µP A/D Input
Circuit generates voltage output determined by DIP switch settings
0.00 star(s) 0 ratings
Updated
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Stepped Waveform Generation For Quasi-Sinewave Inverter
Simple circuit for generating the stepped waveform used in quasi-sinewave DC-AC inverters
0.00 star(s) 0 ratings
Updated
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Two Chip Quadrature Decoder
Two IC chips decode rotary quadrature encoder signals
5.00 star(s) 1 ratings
Updated
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555 Timer Functional Operation Explained
A brief discussion of the basics of the 555 Timer operation
0.00 star(s) 0 ratings
Updated
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Non-inverting Gain With Negative Offset Using Single-supply, Single Opamp
Simple way to calculate single-supply, non-inverting op amp circuit with offset
0.00 star(s) 0 ratings
Updated
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AC Line Powered Electric Fence Controller, Simple Design
AC powered electric fencer requires no line transformer for output isolation
0.00 star(s) 0 ratings
Updated
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Sallen-Key Active-Filter Without an Op Amp
A Sallen-Key Active-Filter can be built using BJTs instead of an op amp
0.00 star(s) 0 ratings
Updated
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Game Show Simple Circuit
Game show circuit, using only one SCR per person, locks out all others after first button is pressed
0.00 star(s) 0 ratings
Updated
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LED 2-Transistor Low-Drop Constant-Current Driver
Simple 2-BJT LED constant-current driver operates to within 0.7V of the supply voltage.
0.00 star(s) 0 ratings
Updated
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Digital One-Shot With Selectable Pulse-Width
All digital one-shot circuit generates precise, selectable pulse-widths
0.00 star(s) 0 ratings
Updated
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Digital One-Shot Using Two Flip-Flops
Digital one-shot generates precise pulse width with no RC components.
0.00 star(s) 0 ratings
Updated
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Analog Multiplier Using PWM
1-Quadrant Analog Multiplier Circuit Uses PMW Circuit For DC to Low Frequency Signals
4.00 star(s) 1 ratings
Updated
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PWM Hit And Hold Solenoid Driver Using CD4093
PWM solenoid driver provides initial full voltge pulse and a lower PWM hold for good efficiency
4.50 star(s) 2 ratings
Updated
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External Voltage Control of BucK Switching Regulator For 0V to Full-Scale Output Adjustment
Output of a typical buck switching regulator is externally adjusted from 0V to full-scale.
0.00 star(s) 0 ratings
Updated
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Simple LM317 Supply With Current-Limit Adjustable to Zero.
LM317 circuit requires only 3 added transistors to allow zero to maximum current-limit adjustment.
5.00 star(s) 1 ratings
Updated
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Simple, Low-Drop Current-Limit Circuit Adjusts to Zero Current
Three-transistor current limit has low voltage drop and adjusts to zero current out
0.00 star(s) 0 ratings
Updated
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Flasher Circuit, High-Side, 2-Terminal, 12V-24V
High-side, 2-terminal circuit replaces vehicle mechanical flasher unit.
0.00 star(s) 0 ratings
Updated
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555 VCO With Wide Range
555 VCO (Voltage Controlled Oscillator) uses constant current control to give wide control range.
0.00 star(s) 0 ratings
Updated
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Paralleled LM317 Circuit Has Excellent Stability/Load Regulation
Paralleling LM317 regulators for higher current, using TL431 reference for excellent performance
4.80 star(s) 5 ratings
Updated
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2-3 Taillight Converter Separates Combined Turn/Stop Signal To Drive Separate Turn and Stop Lamps.
Circuit separates combined turn/stop signals for separate turn/stop lamps using no added power
0.00 star(s) 0 ratings
Updated

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