It will make the output voltage is very steady. The IC1 is the main, DC variable voltage regulator IC, the famous LM317. Then, the unregulated voltage comes to an input of IC1 through R1. And the R6 limits the current to save LED1 Next, the capacitor-C1 filters this becomes the pulsed DC. Then, the AC18V comes to a diode bridge-BD1, to rectifies ACV to DCV, pulsed DC. T1-the step-down transformer converts AC-main to the low ACV, 18V at 3A current.
F1-0.5A fuse to protect the circuit when overcurrent.high current switching (upto 15A) loadsĢD dimensions will help you in placing this component at the time of making circuit on perf board or a PCB.In the 3A adjustable voltage regulator circuit above.įirst of all, get an AC main to the circuit.There have very less signal to noise ratio and less total harmonic distortion making it ideal for audio applications. These transistors are commonly used to build Stereo systems that are rated for 200W or above, they can respond to frequency from 5Hz to 100kHz and has a very good sensitivity of 0.75Vrms. Note that the heat sink will also act as the collector pin of the transistor and hence heat sink should be isolated from the rest of the circuit. Since the Transistors work with high switching frequency and high collector current they tend to heat up very fast, hence they are always used along with a heat sink. Both these transistors are often used together to design high power Amplifiers. The 2SA1943 is a PNP Transistor and it also has its complementary 2SE5200 which is a NPN type transistor. Most amplifiers employ a push-pull circuit similar to that of Class B amplifier, which requires a NPN transistor and PNP transistor. The 2SC5200 is mainly used in amplifier designs along with its counterpart 2SA1943. But now the Transistor is absolute from Toshiba and it has been replaced with TTA5200, but still the good old 2SA5200 can still be found in the market since it is still being cloned by other manufacturers in china. Due to its high current gain and collector current it is very commonly used in ‘High power audio circuits or AF amplifiers. The 2SC5200 is a high power NPN transistor originally from Toshiba. Note: Complete Technical Details can be found at the 2SC5200 datasheet given at the end of this page. Collector-Emitter voltage (VCE) is 230 V.Continuous Collector current (IC) is 15A.The transistor is available in TO-264 package and is commonly used Amplifier designs.Ĭontrols the biasing of transistor, Used to turn ON or OFF the transistorĬurrent flows in through collector, normally connected to loadĬurrent Drains out through emitter, normally connected to ground The 2SC5200 is a high power NPN Transistor with a collector to emitter voltage of 230V and collector current of 30A.
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