| A particular difficulty with LED har displays is the high current drain. LED driver LM3914 controls a chain of LEDS instead of as usua...
| A particular difficulty with LED har displays is the high current drain. LED driver LM3914 controls a chain of LEDS instead of as usua...
| In this article we talk about your letters. You send us advices and wishes, what could be changed. Here you'll find our response to it.
| The circuit based on transistors T1 and T2 forms a rectangular-wave generator. The values of resistors R2 and R3 and of capa citors...
| If you are after great sound at an affordable price, go out and buy a pair of high-quality headphones. Next, you will need a dedicated hea...
| This battery tester is capable of measuring the capacity of batteries up to 17 V at a maximum discharge current of 1 A. Remarkably, the test...
| A deadlock situation occurs if you try to use two optocouplers to isolate two devices connected on an I²C bus. Everything will be fine wi...
| A transconctuctance amplifier is a device whose output current is a function of the difference voltage at the inputs multiplied by a curre...
| The Iogarithmic-to-Iinear converter in the Type NE604 chip (IC1) is used in the present design as an accurate S-meter for short-wave rece...
| Normally, stroboscopes, which are intended to emit short, intensive light pulses, operate from very high voltages. The present circuit wo...
| The Type 555 chip must be one of the most popular ICs used in electronics. Here it is used as a vco (voltage controlled oscillator). The...