Showing posts with label small. Show all posts
Showing posts with label small. Show all posts
Monday, October 20, 2014
10W Small Audio Amplifier
You can use this powerfull amplifier in any small audio project. It is very small (6.5 x 4.5 cm).It outputs 10W and uses a 9V battery.
Component
PCB
Componets List
| R1 : 6 Ohm |
| R2 : 220 Ohm |
| R3 : nothing |
| R4 : 10 KOhm pontesiometer |
| C1 : 2200 uF / 25V |
| C2 : 470 uF / 16V |
| C3 : 470 nF / 63V |
| C4 : 100 nF |
| C5 : nothing |
| C6 : nothing |
| IC1 : TDA 2003 |
Friday, September 26, 2014
Simple 2 Watt Small Switching Power Supply Circuit Diagram
In this small switching power supply, a Schmitt trigger oscillator is used to drive a switching transistor that supplies current to a small inductor. Energy is stored in the inductor while the transistor is on, and released into the load circuit when the transistor switches off.
2 Watt Small Switching Power Supply Circuit Diagram
2 Watt Small Switching Power Supply Circuit Diagram
The output voltage is dependent on the load resistance and is limited by a zener diode that stops the oscillator when the voltage reaches about 14 volts. Higher or lower voltages can be obtained by adjusting the voltage divider that feeds the zener diode. The efficiency is about 80% using a high Q inductor.
Wednesday, December 4, 2013
Amplifier circuit for small room
Amplifier circuit is very suitable to be used or applied in a narrow space such as in cars and so forth. Voltage amplifier is needed starting from 9 Volts to 17 Volts maximum. This amplifier circuit uses IC MPC575C, andsimilarities NEC575 . Power output is relatively very small, only 2 Watts.
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| Schematics Amplifier MPC575C |
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