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Accurate, Adjustable SCR Crowbar Circuit For Overvoltage Protection Using TL431 ReferenceTL431 provides accurate, adjustable voltage crowbar function for circuit overvoltage protection
- crutschow
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NiZn Battery Charger With Auto Cutoff Using LM317Charger performs recommended charging function for rechargeable NiZn batteries
- crutschow
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Getting Started with Android Programming: Creating Your First AppA tutorial to help you write a simple Hello World! Android application
- DerStrom8
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Simple & Inexpensive Ideal-Diode MOSFET CircuitGood for low-drop diode applications, such as blocking battery back-charging or brownout protection
- crutschow
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Latest reviews
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Battery - Accurate, Low-Voltage Cutoff To Prevent Complete Battery DischargeBattery Protection?
- Jason Vapes
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NiZn Battery Charger With Auto Cutoff Using LM317They could definitely become more usable in the future
- Jason Vapes
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Accurate, Adjustable SCR Crowbar Circuit For Overvoltage Protection Using TL431 ReferenceVery Interesting.
- Jason Vapes
Circuit separates combined turn/stop signals for separate turn/stop lamps using no added power
Easy to build digital coil-less (100KHz step size) FM transmitter
Circuit combines the brake-signal and turn-signal into one lamp with no added power connection
switching dc to dc converter
FM transmitter
Radio push-button function is provided by a simple circuit using a CD4011 in a latch configuration
Single Op amp provides linear, single-ended output for bridge sensor resistance change.
TL431 provides accurate, adjustable voltage crowbar function for circuit overvoltage protection
LV, LP, CC driver allows two alkaline or NiMH cells to steadily power a Red LED until discharged.
Charger performs recommended charging function for rechargeable NiZn batteries
Low parts-count circuit monitors multiple alarm switches, includes arm and entry delays
Lead-acid battery charger using LM317 provides auto CC charge, CV top-off, and final trickle-charge
Weight Scale using SFE's OpenScale platform
PB latch circuit provides on/off delay function to prevent accidental power switching
Circuit combines PWM controlled constant-current source with 3rd-order filter using one opamp
Building a Simple Weight Scale
2018-08-12
Weight Scale built using SFE's OpenScale platform
Low Power PWM Stepper Motor Driver
2018-08-05
Stepper motor driver applies full voltage for fast stepping, then PWM for low power hold
Electronic Power Rheostat
2018-07-23
Circuit generates an equivalent high power resistance that can be adjusted with a potentiometer.
A simple circuit using the common CD4049 to generate the Radio PB Function
output impedance experiments
2018-07-10
Damping factor, and how an amplifier controls voice coil motion.
