News post : Electronic Projects Circuits :Eleccircuit.com |  |
- Small Emergency Light by 9013 transistor
- DC converter 5 volt to +12 volts or high volt than +12 volts
- Stereo amplifier 3W + 3W using BA5406-IC
| Small Emergency Light by 9013 transistor Posted: 20 Jul 2013 12:05 AM PDT When, Your electricity is problem as switches off, should have the system emergency light for . I begs for to advise Mini Emergency Light. By use electronics part, general seek easy and have no transformer. Then make this circuit has small-sized and economize very. From this circuit use power supply 3V then apply to lamp [...]  |
| DC converter 5 volt to +12 volts or high volt than +12 volts Posted: 19 Jul 2013 07:10 PM PDT When if you want a negative voltage from a positive power supply. You can do to use a Buck/boost converter as show in the figure 1. Which Which combines the buck and boost circuit is the same circuit to provide voltage is high than input. Figure 1 The basic Buck / boost converter circuit Figure [...]  |
| Stereo amplifier 3W + 3W using BA5406-IC Posted: 19 Jul 2013 06:37 PM PDT If you want to use a small stereo audio amplifier. We think you must love this circuit. They use IC-amplifier number is BA5406 IC stereo audio amplifier of 3 watt + 3 watt.This circuit is small and easy to build. They so suitable for expanding the use of music in a private room. Or may [...]  |
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