![]() ![]() 1k5 ohms Resistor - ( brown, green, red, gold) 4K7 ohms Resistor - ( yellow, violet, red, gold) 620 ohms Resistor - ( blue, red, brown, gold) 6K8 ohms Resistor - ( blue, gray, red, gold) 100K ohms Resistor - ( brown, black, yellow, gold) 2SA1943 PNP Power complementary transistor We have not opted for covering transistor circuit design as found in most text books because there are already many available on the web for free download. ![]() ![]() 2SC5200 NPN Power complementary transistor 2 - Schematic diagram Powerful Mini Audio Amplifier using only 5 Transistors The third is the power stage: It is formed by a pair of differential power transistors, one is the NPN 2SC5200 and the other is the 2SA1943, they are in push-pull mode, configured to work in class AB, with base BIAS diodes.įig.The second is the driver stage: it is formed by the PNP TIP42 transistor, it is used as a current amplifier and serves to drive the output stage.The first is the pre-amplification stage: It is formed by a differential pair set of NPN 2N5551 transistors, they are working as differential pair, which gives a very good stability in the signal sent to the next stage.The amplifier circuit is very simple to assemble, as shown in Figure 2 just below, this amplifier is divided into three basic stages: 100W RMS Power Amplifier With 2 NPN 2SC5200 Transistors At Output + PCB.50W RMS Audio Amplifier with IRF530 and IRF9530 Mosfet + PCB.These circuits require a basic understanding of amplifier concepts. Each circuit below is presented as a 'definition-by-example' and includes step-by-step instructions with formulas enabling you to adapt the circuit to meet your design goals. ![]()
0 Comments
Leave a Reply. |