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Circuit Project Electronic Circuit Project Electronic power supply, power amp, Circuit TV, electronic control, battery chart, lighting, basic electronic Articles
Basic MOSFET amplifier 100W with 2SK1530,2SJ201
2007-09-02 18:30:00 Intro detail: I propose you here a basic MOSFET amplifier. Output power is +/- 100 Wrms under 8 ohms or +/- 160 Wrms under 4 ohms. Due to the circuit simplicity, distortion is +/- 0.1 %. Bandwidth at -3 db is from 4 Hz to 96 Khz, it is limited by C1, R1, C2 and R2. Transistors T1 ... More About: Basic , Amplifier , Mosfet
80 Amp Electronic Power Converter
2007-09-02 18:18:00 From the Progressive Dynamics website: “The PD9180, 80 amp power converter is designed to provide reliable filtered DC power to all recreational vehicle 12-volt lighting and appliance circuits. The PD9180 converter also provides safe and rapid recharging of RV batteries. Built-in features such as electronic current limiting, reverse battery protection, high voltage protection, low voltage ... More About: Power , Electronic , Converter , Vert
0-30 VDC Stabilized Power Supply With Current Control 0.002-3A
2007-09-01 18:49:00 0-30 VDC Stabilized Power Supply With Current Control 0.002-3A - This is a high quality power supply with a continuously variable stabilised output adjustable at any value between 0 and 30VDC. The circuit also incorporates an electronic output current limiter that effectively controls the output current from a few milliamperes (2 mA) to the maximum ... More About: Switching regulator
10 amp Power Supply with LM723 and 2N3055
2007-09-01 18:45:00 Source : http://www.anatekcorp.com/ttg/tiptrick.ht m#10%20amp%20Power %20Supply Had a need for a low voltage power supply today with high current, and since it was after 530 and tommorrow being Sunday, I decided to build one. So I got a few parts that I had laying ...
Circuit provides hiccup-current limiting
2007-09-01 18:09:00 Current-limit protection is an essential feature for power-supply systems. The three major types of current-limit-protection mechanisms are constant, foldback, and hiccup. Hiccup current limit performs the best of the three types; however, the implementation is rather complex. In this scheme, upon detection of an overcurrent event, the whole power supply shuts down for an interval ... More About: Current , Circuit , Ovid
1.5 Volt LED Flashers by 2N3904
2007-09-01 18:05:00 The discrete 3 transistor circuit at the lower right would need a resistor (about 5K) in series with the 1uF capacitor to widen the pulse width. Read More Source: http://ourworld.compuserve.com/homepages/ Bill_Bowden/page10.htm#5volts.gif Thank you. Lamp Flasher, LED Display, LED Flasher, Lighting Share This
Generating -5 Volts From a 9 Volt Battery With IC 555
2007-09-01 17:53:00 Source: http://ourworld.compuserve.com/homepages/ Bill_Bowden/page10.htm#5volts.gif A 555 timer can be used to generate a squarewave to produce a negative voltage relative to the negative battery terminal. When the timer output at pin 3 goes positive, the series 22 uF capacitor charges through the diode (D1) to about 8 volts. When the output switches to ground, the 22 uF cap discharges ... More About: Battery
Walkman Power Supply (link)
2007-09-01 17:49:00 A simple 3V DC power supply for Walkman s and other 3V battery devices. Link Power supply and Inverter, Power supply circuitShare This
LM338K Adjustable Power Supply
2007-08-31 17:05:00 Source : http://www.aaroncake.net/circuits/supply. asp When working with electronics, you always need one basic thing; power. This power supply is great for powering all kinds of electronic projects. It produces a well filtered, variable 1.2-30 volts at 5 amps. It is easy to build and the parts are realitively easy to find. Part C1 1 14000uF or 10000uf 40 VDC ... More About: Power
9 Volt Stabilized Power Supply
2007-08-31 16:55:00 9 Volt Stabilized Power Supply: with IC 723 and 2N3055 2N3055, LM723, Power supply circuit, power supply regulatorShare This
PC Power 12 V Current Limiter
2007-08-31 16:36:00 To safely power something from your PC, the attached loads have to be limited to a safe current in order to avoid the chance that a short circuit might cause inadvertent shutdown and damage to your data. This circuit can be used to safely bring out the 12V line from your computer to supply a ... More About: Power , Current , Limite , R 12 , Limiter
de luxe timer with IC 4093 +7808
2007-08-31 16:17:00 The “de luxe” schematic makes use of all four schmitt trigger nand’s of the HEF4093 IC The on time is set by the one shot built with R2/R3 C3 and IC2A: when the pushbutton is depressed C3 will be charged slowly through R3/R2; as long as the voltage of C3 is below the schmitt trigger trip level, the ... More About: Timer
simple timer with IC 4093 + 7808
2007-08-31 16:15:00 The on time of the timer is set by the one shot built with R2/R3 C3 and IC2A: after pressing pushbutton S1 C3 will be charged slowly through R3/R2; as long as the voltage of C3 is below the schmitt trigger trip level, the output of IC2A will be high and the the relay is switched on. Altogether ... More About: Simple , Timer
Dusk to dawn switch by IR-Diode
2007-08-30 16:56:00 This dusk to dawn switch switches on the lamp at night and automatically switches off the lamp in daytime. The circuit uses an old-fashioned relay as switching element which makes it suitable for all lamp types: not only incandescent but also TL and compact fluorescent. description When it is light, infrared-diode D1 will be conducting; the voltage on the ... More About: Lighting , Switch , Dawn , Witch
Your washing machine & tumble dryer on one wall outlet
2007-08-30 16:44:00 Introduction This circuit enables you to connect both your washing machine and your tumble dryer on one wall outlet, without blowing the fuse! The trick is that the washing machine only consumes full power when heating the water. During the other stages (pumping, tumbling, centrifuging) the power consumption is much lower. The circuit switches off the tumble dryer during the ... More About: Machine , Wall , Dryer , Washing , Outlet
Timer with buzzer and optocoupler by IC 4060
2007-08-30 16:38:00 Source : http://users.otenet.gr/~athsam/timer_with _buzzer_and_optocupler.htm A small circuit that can find a lot applications of measurement time. She has the possibility us inform with sound signal from the BZ1. At the same time, exist the possibility drive a external circuit via the optocoupler IC2, after we connect the applicable circuit in contacts [ A ] and [ B ... More About: Timer , Toco
Electronic Switch ON-OFF touch or with push button by IC digital
2007-08-30 16:31:00 Here we have three choices, with which we can make electronic switches that use our touch or pressing (push button). We thus exploit the very big resistance of entry, that present the gates CMOS. In the fig.1 we have two gates NAND or NOR (IC1), connected as R-S flip-flop. Just as we press the switch ... More About: Electronic , Button , Switch , Touch , Digital
Relay Timer switch By IC 555 and 741
2007-08-29 18:39:00 In Fig.1 see a 100 second delayed turn ON relay RL1 switch, if plug power +12V in circuit. In Fig.2 see a two range 6-60 second and 1-10 minute auto turn off relay timer circuit, with 555. Part R1=1 Mohms C4=100nF 63V IC2=LM555 R2=330 Kohms ... More About: Switch , Timer , Witch
Check the milli-Ampere-hour capacitance of your rechargeable NiCad batterie
2007-08-29 18:24:00 Introduction With this mAh meter you can check the mAh capacitance of your NiCad or NiMH rechargeable batteries Normally the cheaper NiCad AA-type cells have a capacitance of 500-750mAh (NiCAD) the more expensive NiMH AA-cells types are up to 1800mAh. I built this circuit because the capacitance of some of my older NiCad batteries seemed to be quite low, ... More About: Check , Hour , Erie , Char , Capa
60 WATTS LINEAR AMPLIFIER with IRF840
2007-08-29 18:13:00 The 60 Watt linear amplifier is simple all solid state circuit using power mosfet IRF840. The IRF series of power transistors are available in various voltage and power ratings. A single IRF840 can handle maximum power output of 125 watts. Since these transistors are used in inverters and smps they are easily available for around ... More About: Radio Frequency , Watts , Amplifier
MOSQUITO REPELLANT by IC 555, 4017, 4011
2007-08-29 17:31:00 This is Circuit MOSQUITO REPELLANT. By High Frequency Sound. Use a electronics part ,easy to find and low cost. To See Circuit, have IC 555, 4017, 4011 and BC337,BC327. Output Piezo Speaker. Volt suppy +12V. Easy to build see PCB: Alarm, Astable Multivibrator, Audio Alarm, audio alarm, digital circuit, Oscillator Generator, Sound SynthesizerShare This More About: Mosquito
18 LED dimmable LED lamp by LM2941C
2007-08-28 19:25:00 This circuit is a dimmable white LED lamp array with 18 LEDs. The lamp brightness is regulated as long as the input voltage is above 10.5V. A low-dropout analog voltage regulator is used for a simple and relatively efficient design. The lamp produces enough light to use as a a reading lamp ... More About: Lamp
LM12CL - 80W Operational Amplifier
2007-08-28 19:08:00 The LM12 is a power op amp capable of driving ±25V at ±10A while operating from ±30V supplies. Read More Source: http://www.national.com/mpf/LM/LM12CL.htm l thank you Power Amplifier Share This More About: Operation
220 Watt Power Amplifier (pdf)
2007-08-28 19:02:00 220 Watt Power Amplifier : This is a building plan for an audio amplifier with2 x220-Watt output power. Text is in Finnish. Power AmplifierShare This
LM2675 5.0EVAL 1 Amp Step Down High Efficiency Simple Switcher(link)
2007-08-28 18:56:00 LM2675 5.0EVAL 1 Amp Step Down High Efficiency Simple Switcher Evaluation Board: National Semiconductor Application power supply regulator, switching power supply, Switching regulator Share This More About: Link
LM2651_3.3V_EVAL 1.5High Efficiency Synchronous Switching(link)
2007-08-28 18:55:00 LM2651_3.3V_EVAL 1.5High Efficiency Synchronous Switching Regulator Evaluation Board: National Semiconductor Application switching power supplyShare This More About: Link , Witch
LM2577 Three Output, Isolated Flyback Regulator (link)
2007-08-28 18:54:00 LM2577 Three Output, Isolate d Flyback Regulator: National Semiconductor Application power supply regulator, switching power supply, Switching regulator Share This More About: Link
MOSQUITO REPELLANT
2007-08-28 07:01:00 They will be swarming once again, the unwanted, winged torturers, looking for the victims and leaving behind swelling and itch! The mosquito problem is a part of everyday life, espacially during the summer. Since the immemorial, inventive people have struggled hard to find effective means of protection against these insects. Even though it is a fact that ... More About: Alarm , Circuit , Mosquito
power supply regulator 1_2V-20V and 3V-6V-9V-12V 3Amp With LM317T and 2N305
2007-08-27 18:37:00 This is Circuit Power supply regulator Current 3Amp Voltage output : 1.2V-20V and 3V,6V,9V,12V. Use IC LM317T and 2N3055, Easy to Bulid and normal part low cost too. detail see in circuit image. 2N3055, LM317, Power supply circuit, power supply regulator, power supply, regulatorShare This
MC34063A the inverting converter
More articles from this author:2007-08-27 17:18:00 The inverting converter is the power unit to make the negative output voltage with the positive input voltage. The converter which was made this time makes -2V to -10V output voltage with the input voltage of +12V. Because it makes the limitation value of the input electric current about 1.3A, the maximum with the input ... More About: Converter , Vert 1, 2, 3, 4, 5, 6, 7 |
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