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simple electronics
most recent feed scan: 8-9-2010 15:25:28UTC
filed under: Science

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	BUG ZAPPER CIRCUIT Circuit below is a simple bug zapper project using voltage multiplier circuit powered by 220v AC. this zapper circuit produces a high voltage but very minimal current. The series LED and 220nF capacitor will produce a light that will attract insects. All capacitor are of mylar or paper type. Warning !! : This bug zapper circuit is directly connected to ac supply and produce a very high... 17-1-2010 circuit, zapper, bug, voltage
	Transistor : bipolar junction transistor (BJT) basics Transistor or bipolar junction transistor (BJT) is a three layer semiconductor device of either two n-and one p-type layer of material or two p-types and one n-type of semiconductor material. It has three pins the emitter base and collector . Its basic characteristic is that it uses a small amount of electrical current to control a larger change in current. Most of the transistor has a 0.7V b... 2-11-2009
	Battery: The Introduction Battery is a device in which chemical energy is directly converted to electrical energy. It consists of one or more voltaic cells, each of which is composed of two half cells connected in series by the conductive electrolyte Batteries can be generally divided into two main types-rechargeable and non-rechargeable (primary cells). Primary cells are intended to be used once and can be disposed. T.... 2-11-2009
	12V to 5V buck converter using 555 timer IC This buck converter is driven by 555 timer IC and converts 12V dc from a battery to 5V dc. The 555 IC (operated in astable mode ) generates pulses of voltages of 42% duty cycle. This pulses turns the transistor on and off and drives the inductor L (buck converter circuit), and as a result generates 5V dc output. For this configuration, Ra =20K Rb =27K C =1nF Q = TIP41C or any of the same sp... 2-11-2009
	12V to 6V buck converter using 555 timer IC This buck converter is driven by 555 timer IC and converts 12V dc from a battery to 6V dc. The 555 IC (operated in astable mode ) generates pulses of voltages of 50% duty cycle. This pulses turns the transistor on and off and drives the inductor L (buck converter circuit), and as a result generates 6V dc output. For this configuration, Ra =18K Rb =18K C =10nF Q = TIP41C or any of the same sp... 2-11-2009
	12V to 9V buck converter using 555 timer IC This buck converter is driven by 555 timer IC and converts 12V dc from a battery to 9V dc. The 555 IC ... 2-11-2009
	12V to 10V buck converter using 555 timer IC This buck converter is driven by 555 timer IC and converts 12V dc from a battery to 10V dc. The 555 IC... 2-11-2009
	40W FLUORESCENT INVERTER PROJECT view fluorescent inverter diagram This 40W fluorescent inverter project is powered by 555 timer IC an... 2-11-2009
	simple variable power supply project using LM317 variable power supply project This variable power supply project uses LM317 regulator IC that can s... 2-11-2009
	simple IPOD CHARGER PROJECT This DIY simple iPod Charger Project aims to give simple idea on how to build you IPod charger and expla... 2-11-2009
	Free electronic circuit simulators for electronic design and analysis Electronic circuit simulator is computer software that will allow us to design and simulate schematics, ... 2-11-2009
	cell phone charger using 1.5V battery Have you ever experienced going to other place and suddenly your cell phone turn off, and no power is av... 2-11-2009
	CPU fan temperature controller project This project is all about temperature controller for cooling fans in CPU and computer hardware. This t... 2-11-2009
	Dual fan CPU temperature controller project This project is all about dual fan temperature controller project for CPU and computer hardware. Simil... 2-11-2009
	Mobile Cell phone Charger project Cell phone charging is a problem when you are away from home or where main source is not available. A fu... 2-11-2009
	solar battery charger with charging controller and regulator Solar power is a good and clean source of electricity.But before it is used in houses, it is first ... 2-11-2009
	Negative variable power supply using LM337 regulator IC This variable power supply project uses LM337 regulator IC that can supply an output current up to 1.5... 2-11-2009
	Dual Variable Power supply Project by LM317 and LM337 regulator IC This variable power supply project is made out from two complementary regulator IC, the positive LM317 ... 2-11-2009
	12V to 8V DC converter using 7808 regulator IC This simple converter project uses 7808 IC to convert 12V dc from a battery to 8V DC. This converter a... 2-11-2009
	12V to 6V DC converter using 7806 regulator IC This simple converter project uses 7806 IC to convert 12V dc from a battery to 6V DC. This converter ... 2-11-2009
	12V to 5V DC converter using 7805 regulator IC This simple converter project uses 7805 IC to convert 12V dc from a battery to 5V DC. This converter ... 2-11-2009
	12V to 10V DC converter using Zener diode and transistor This simple converter uses a zener diode and a transistor to convert 12V dc from a battery to 10V DC w... 2-11-2009
	12V to 9V DC converter using Zener diode and transistor This simple converter uses a zener diode and a transistor to convert 12V dc from a battery to 9V DC wi... 2-11-2009
	12V to 8V DC converter using Zener diode and transistor This simple converter uses a zener diode and a transistor to convert 12V dc from a battery to 8V DC wi... 2-11-2009
	12V to 6V DC converter using Zener diode and transistor This simple converter uses a zener diode and a transistor to convert 12V dc from a battery to 6V DC wi... 2-11-2009

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