Sound level meter circuit using LB1409
This project is a sound level meter circuit that easy and very cheap, can drive 9 LED display,The LB1409 is used as base of this circuit makes small size. Read more
How to use TL497 Switched mode power supply
How to use TL497 as the switched-mode power supply schematic that outputs a current of 500mA, and there are 3 models: step down, step-up, and inverting voltage converters. Now, a switching power supply is highly popular. We are used to suggesting a lot of projects. Those who want the switched-mode power supplies that have small … Read more
Power bank mobile charger circuit using LM1086
Power bank mobile charger circuit project to backup energy when use portable mobile no electrical outlet. Use LM1086 as main on low dropout voltage. […] Read more
LM3909 Frequency generator | LED flasher circuit ideas
LM3909 Frequency oscillator generator / LED flasher using low voltage and a few parts. There are 7 circuit ideas. You will like LM3909! Read more
Automatic Fan Controller circuit
This is automatically fan controller for heatsink. when it hot so the fan controlled to high speed. it use LM334z as temperature sensor that is accurate. […] Read more