Do More

Using LTC2990 integrated circuit you can design a very simple monitoring system to monitor system temperatures, voltages and currents. Through the I2C serial interface, the device can be configured to measure many combinations of internal temperature, remote temperature, remote voltage, remote current and internal VCC. The internal 10ppm/°C reference minimizes the number of supporting components and area required. Selectable address and configurable functionality give the LTC2990 flexibility to be incorporated in various systems needing temperature, voltage or current data. Bellow you can see some ideas how to use the LTC2990 I2C Temperature, Voltage and Current Monitor Ic in your electronic projects . You can use LTC2900 IC for electronic projects like :motor protection , fan temperature alarm , battery monitoring , liquid level sensing and many other projects .

Power Amplifier TDA1514 , this power use the IC TDA1514 , minimum require voltage 12 Volt  and maximum voltage 30 volts DC. Power output maximum 100 Watt mono with 8 ohms impedance. this circuit is High output power amplifier with IC. See schematic below :

Description Schematic : Minimum Voltage for this Circuit is 6 Volt , and Maximum voltage is 18 Volt . To recomended circuit working use voltage 12 Volt. Its not So much and less , its good. Output speaker is Mono with power 1,2 watt and Impedance 8 Ohm. IC equal with AN7130. See schematic circuit audio power amplifier AN7110 or AN7111 : Click to view Enlarge

The LM3909 is an integrated circuit (IC) which will flash a light-emitting diode (LED). Using only two extra components and a battery, the circuit is cheap and has a very low current drain from a 1.5 V cell. The circuit can be used as a novelty flasher, an indicator for a dummy alarm bell box, or it could be attached to a torch so that it could be found easily in the dark! The simple circuit Led Flasher with the LM3909 IC Diagram Assembly The circuit can be built on a small piece of Veroboard (the piece shown in Figure 2 measures 15 holes by 10 strips). Using such a board, follow these instructions. 1. Depending on how far away you want the LED from the circuit board, solder a length of insulated wire to each lead of the LED. Use different colours of insulation – say, red and black, connecting the red lead to the anode (a) lead (the longer one) of the LED, and the black one to the cathode (k). Figure 2 shows these leads. 2. Cut the copper tracks as shown in Figure 2, using a 3 mm (1⁄8 ...

INTERFACING CD4033 IC WITH COMMON CATHODE 7 SEGMENT DISPLAY CD4033 is a Decoder IC, which is commonly used to drive 7 segment displays. The pin 1 of CD 4033 IC is used as CARRY IN, which is highly sensitive to electromagnetic radiations and the pin 5 of this IC is used for CARRY OUT to the next stage. Figure shows the INTERFACING diagram of CD 4033 IC with 7 Segment display. Figure shows the Pin out Diagram of common cathode 7 segment Display You may also like Wireless Mains Voltage Counter using CD4033 IC

Vertical Vin = input (non-inverted), Vout = Vertical output, VfB = Vertical feedback (inverted inpput) Vcc to pump-up can be traced through the diode PUM-up and pump up Elco Capacitor VfB = or to Vin2 = Gnd or Vcc (-) Vertical IC PIN-OUT DATA AN5521 Vin = 4, Vout = 2, Vcc = 7, Gnd = 1, VfB = AN5522 Vin = 7, Vout = 5, Vcc = 2, Gnd = 4, VfB = 1 AN5539 Vin = 4, Vout = 2, Vcc = 6, Gnd = 1, VfB = 5 AN15525 Vin = 7, Vout = 5, Vcc = 2, Gnd = 4, VfB = 1 LA7832 Vin = 4, Vout +2, Vcc = 6, Gnd = 1, VfB = 5 LA7835 = 2 Vin, Vout = 11, Vcc1 = 1, Vcc2 = 7, LA7837 = 2 Vin, Vout = 12, Vcc1 = 1, Vcc2 = 8, Gnd = 11, VfB = 7 LA7838 = LA7837 LA7840 Vin = 4, Vout = 2, Vcc = 6, Gnd = 1, VfB = 5 LA7841 = LA7840 LA7845 = LA7840 LA7846 = 5 Vin, Vout = 3, Vcc = 7, Gnd = 2, VfB = 6 LA7848 Vina = 5, VinB = 6, Vout = 3, Vcc (+) = 7, Vcc (-) = 2 LA7876 Vina = 5, VinB = 6 Vcc (+) = 7, Vcc (-) = 2 STV9302 = see AN5522 STV9379 = See AN5522 TA8403 Vin = 4, Vout = 2, Vcc = 6, Vcc = 6, TA8445 Vin = 2, Vout = 11, Vcc1 = 1 ...

 At this point is a Solar Charger Circuit to is used to charge information Acid otherwise Ni-album batteries using the solar energy power. The circuit harvests solar energy to charge a 6 volt 4.5 Ah rechargeable battery in favor of various applications. The stallion has Voltage and Current supervision and terminated voltage restrict sour facilities. Circuit uses a 12 volt solar panel and a changeable voltage supervisor IC LM 317 . The solar panel consists of solar cells each one rated on 1.2 volts. 12 volt DC is presented from the panel to charge the battery. Charging current passes through D1 to the voltage watchdog IC LM 317. By adjusting its Adjust pin, output voltage and current can subsist regulated. VR is placed amid the adjust pin and ground to provide an output voltage of 9 volts to the battery. Resistor R3 confine the charging current and diode D2 prevents discharge of current from the battery. Transistor T1 and Zener diode ZD conduct yourself having the status of a stop ...

79xx is a widely known series of low-cost, fixed-negative-voltage regulators. These integrated circuits are available with output current of 100-150 mA (L series), 0.4-0.5A (M series), up to 1A (standard series), etc. They can be used in many applications other than regulators, audio power amplifier being one of them.  As shown in the circuit diagram, a simple stereo audio amplifier is built around two 7905 negative-voltage regulators (IC1 and IC2) and a few discrete components. The 7905 IC (a -5V regulator) used here is readily available. However, the circuit will also work with other 79XX regulators if appropriate power supply is used. Both channels shown in the diagram are identical. Hence the description below is only for the first channel. The quality of the output signal is within acceptable limits. Stereo Power Amplifier Using IC 7905 Circuit diagram : . Stereo Power Amplifier Circuit Diagram   Regulator IC 7905 works as an amplifier for the voltages applied to common...

This circuit using IC LA4445 , this is stereo amplifier with power output 2 X 18 Watt, with this circuit you can use to car amplifier or to other elctronics device. Speaker use woofer with impedance 4 Ohm with power up to 20 Watt. Minimum voltagte require 10 Volt and maximum voltage 18 volt. see schematic below :    If you can't operate the circuit , please check IC , and then voltage in. If voltage is good check the component are. If components are working . Please check speakers.

This arrow led indicator electronic project can be used in some dark places to show the directions . You can use to indicate direction just an illuminated arrow or a flashing light , but is much nicer if the light moves in the correct direction. This arrow led indicator is based on 74HC14 circuit and some LEDs which are used to show the way . For this arrow led indicator we need six series of three LEDs arranged in the shape of arrows and are connected to the outputs . Each time the lit arrows move over by one column so it appears that the arrows run from right to left. Arrow LED Indicator Circuit Diagram If we want to change the speed of the moving light it’s need to change the value of C1 to C3 or R1 to R3 ( a lower value for this components decrease the time of moving lights). If we want a longer arrow we can mount in parallel with existing columns another columns . For power supply we can use batteries or 6V regulated power supply .

*notif :  this is mono amplifier.    On this schematic circuit power amplifier with IC AN7116 , this schematic only use the IC because its'not have similiar IC. To operate the Circuit , you must have any component's too , such as resistor , condensator , etc. In order to be a circuit that works on good power amplifier.   This Circuit requires minimum voltage 3 volt and maximum voltage 9 volt . Ouput power of this circuit is 1 watt, and impedance is 4 Ohm. To see Schematic Circuit ,please see below on  figure 1.0 : Figure 1.0 And see Package IC AN7116 below : This package of IC : SIL-9

HA13150A is a four-channel BTL amplifier IC designed for car audio, featuring high output and low distortion, and applicable to digital audio equipment. It provides 21 W output per channel, with a 14.4V power supply and at 10% distortion. Circuit diagram: Circuit diagram for 21 W 4-Channel BTL Power IC Datasheet for HA13150A: Download

Schematic Circuit Amplifier with IC AN7111 . This Circuit is a minimum voltage 6 Volt and maximum voltage 18 Volt . And I recomended voltage for this circuit is 12 Volt. With IC AN7111 maximum output speaker 1,2 Watt , and impedance 8 Ohm. Similarity with this IC is AN7131 and AN7140. Package IC : SIL-9 and manufactered by MATSUSHITA. See  Schematic and package IC below : Click Image to view Enlarge This Figure of package IC

  *notif : this circuit is stereo power amplifier Although the schematic power amplifier with IC AN7118S is difficult for lees understood making of  PCB track . But once tried to design on PCB is not so difficult. Because the actual components close together and easy to design it. This Circuit need minimum voltage 1 volt and  maximum voltage 3 volt. It is a low voltage amplifier with power output 2 x 35 m Watt . Schematic circuit below : Click to Enlarge Components Required : Resistor / Condensator / Capacitor : 4,7Ohm (2x) , 0,01 uF (2x) , 47uf (2x) , 68 pf (2x) , 1uF (2x) ,  22uF (2x) , 220 uF (1x) , 470uf (2x). Condensator / capacitor voltage use 16 volt. Only Condensator on output speaker use voltage 25 volt.

555 timer tester is a simple circuit that serves to test the condition of IC 555. 555 timer circuit tester, in principle, start the timer 555 in astable multivibrator mode. As an indicator of the status of the timer 555 good condition or damaged to use 2 pieces LED which will light up in a blink alternately when the timer 555 in good condition. And only one will turn on or off all the timer 555 when the condition is broken. 555 timer circuit tester is powered using 9 Volt DC voltage source. Complete circuit tester 555 as follows.   How to use 555 timer tester is in conjuction with IC 555 to test the existing IC socket according to the order button. Then activate the power switch to begin testing the 555 timer ic. Then live we observe the LED indicators 2 before, whether flashing alternately (good) or not blink or even die all (timer 555 damaged). source:link

This Circuit must use the IC AN7114 or you can use the IC AN7115 . Minimum voltage for this IC is 6 Volt and maximum voltage is 11 . You can supply this Circuit with 12 Volt if  you use IC AN7115 because its maximum voltage 13 volt. Output Power 1 watt with Impedance 4 ohm .   See the Schematic (figure 2.0) and package IC ( figure 1.0 ) : Figure 1.0 Figure 2.0

See below this circuit: Datasheet IC TDA 1521 : Vcc                = 6-30 V Pout               = 2X 6W RL                 = 8 Ohm Ft                   = 20-20 Khz Icco               = 40 mA Package         = SIP 1-9 Manufactered = Siemens

Schematic Description : This Circuit Require voltage 12 -26 Volt. Good Voltage use is 16 Volt , Because its not too small and not too big Voltage. If use voltage that is to large it will quickly damage the IC. And if use voltage that is to small it will make less than maximum sound output. See this Circuit  and datsheet IC AN5265 Below : Click to Enlarge Datasheet IC  AN5265 Vcc                = 12-26 V Pout               = 2,3 W RL                  = 16 Ohm Ft                   = 40hz - 18Khz Icco                = 9,5mA Package         = SIP2-9 Manufactered =  MATSUSHITA

Overview: The AN12941A is an amplifier IC for stereo  speakers which can output 1 W by 8 Ω or 2 W by 4 Ω.  The AGC circuit is built-in to prevent the resonance  or the vibration by the speaker's energy and the   clipping distortion what is called "broken up sound."  of the speakers. Also, to reduce power consumption, AN12941A  has a built-in function which automatically detects the  input signal and can automatically enter power save  mode when there is no signal. Features: Speaker amplifier is 1 W × 2-channel: 8 Ω, VCC = 5 V or 2 W × 2-channel: 4 Ω, VCC = 5 V Built-in AGC circuit  Prevention of the resonance or the vibration by  the speaker's energy and the clipping distortion  of the speaker by AGC at excessive input signal  (with AGC on/off switch). Built-in automatic power saving function  It detects input signals and switches on/off (with  the on/off switch for the automatic power saving). Operating supply voltag...