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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

Resource icon crutschow
4-20mA Current-Loop Transmitter, Simple Receiver-Powered Circuit
Simple one op amp, 4-20mA current-loop transmitter circuit is receiver powered
0.00 star(s) 0 ratings
Updated
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LM317 Simple CC CV With TL431 For Battery Charging, Etc.
Simple regulator has both CC and CV with minimum drop, using one LM317 and one TL431 reference
5.00 star(s) 1 ratings
Updated
Resource icon crutschow
CD4013 Push-Button Toggle FF Uses Spare FF For Debounce Circuit
CD4013 PB toggle circuit requires no additional IC for debounce control
0.00 star(s) 0 ratings
Updated
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Battery Hot-Swap Circuit Using Two MOSFETs As Ideal Diodes
Simple circuit for hot-swap of two batteries with low forward operating drop
0.00 star(s) 0 ratings
Updated
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LM317 12V Pb Battery Trickle Charger with Temperature Compensation
12V Pb battery trickle charger provides desired temperature compensation
5.00 star(s) 1 ratings
Updated
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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) 2 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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