Wiring & diagram Info: ic

Thursday, November 6, 2014

Visitor Alarm Circuit Diagram Using IC 555

Description

Figure shows the circuit diagram of the Visitor Alarm . Here I have used a LDR and a mono stable Multi Vibrator for making this circuit . When who breaking the LED ray, the LDR has high resistance so the transistor will be OFF and the pin number two of the IC 555 is negative then the IC 555 will be triggering so the output is ON. When who dont breaking the LED ray, the LDR has low resistance so the transistor will be ON and the pin number two of the IC 555 is positive after that the IC 555 doesnt triggering so the output is OFF.

Circuit Idea

Making Of LDR and LED Cover both items with a black insulation tape. See the below images for further details.

LED	LDR

Arrangement Of LDR and LED

Parts List

Component No:	Value
R1	10K
R2	10K
R3	680R
R4	10K
C1	10MF
C2	103pF
Q1	BC548
D1	White LED Or LASER
	LDR
U1	NE555
B1	6V Buzzer

Thursday, October 16, 2014

Build a Compressor Circuit with 570 571 Compandor IC

Compressor Circuit with 570/571 Compandor IC circuit provide high gain for low amplitude input and provide low gain for high amplitude input. This action, in effect, produce a nearly constant amplitude even though the input has very high dynamic range (very high amplitude variation from time to time). The action of compression like this is needed in some situation, such as in maximizing modulation depth in broadcasting, or sustaining electric guitar signal which has very high variation between the plucking time and fading out. The following circuit has complementary input/output characteristic and unity gain at 0.775 VRMS input. Voltage gain through compressor is square root of 0.7/Vin. Vin is average input voltage. This circuit uses Signetics dual channel compandor IC. 570 has lower inherent distortion and higher supply voltage range (6-24 V) than 571 (6-18 V).

Compressor Circuit with 570/571

Sunday, September 14, 2014

Inverter 12V DC to 120 230V DC with IC 555

This DC-to-AC inverter schematic produces an AC output at line frequency and voltage. The 555 is configured as a low-frequency oscillator, tunable over the frequency range of 50 to 60 Hz by Frequency potentiometer R4.

Parts List:
R1 = 10K
R2 = 100K
R3 = 100 ohm
R4 = 50K potmeter, Linear
C1,C2 = 0.1uF
C3 = 0.01uF
C4 = 2700uF
Q1 = TIP41A, NPN, or equivalent
Q2 = TIP42A, PNP, or equivalent
L1 = 1uH
T1 = Filament transformer, your choice

The 555 feeds its output (amplified by Q1 and Q2) to the input of transformer T1, a reverse-connected filament transformer with the necessary step-up turns ratio. Capacitor C4 and coil L1 filter the input to T1, assuring that it is effectively a sine wave. Adjust the value of T1 to your voltage.

The output (in watts) is up to you by selecting different components.

Input voltage is anywhere from +5V to +15Volt DC, adjust the 2700uF caps working voltage accordingly.

Replacement types for Q1 are: TIP41B, TIP41C, NTE196, ECG196, etc. Replacement types for Q2 are: TIP42B, TIP42C, NTE197, ECG197, etc. Dont be afraid to use another type of similar specs, its only a transistor... ;-)

Saturday, September 6, 2014

Tuesday, September 2, 2014

Schematic Audio Power Amplifier with IC AN7110 AN7130

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

Sunday, August 31, 2014

Amplifier Circuit with IC AN7133

*note:this is stereo amplifier

This circuit is stereo power amplifier . Voltage input or Supply voltage with dual voltage minimum 6 volt , and maximum 18 volt . You cant use triple voltage in this amplifier and must DC voltage not AC voltage . Maximum output power 2 X 15 watt with minimum impedance 4 ohm . You can use this amplifier on car commonly called car amplifier, on Personal Computer (PC) , on small room , etc.

See this schematic amplifier circuit with IC AN7133 below :

Thursday, November 6, 2014

Visitor Alarm Circuit Diagram Using IC 555

Thursday, October 16, 2014

Build a Compressor Circuit with 570 571 Compandor IC

Sunday, September 14, 2014

Inverter 12V DC to 120 230V DC with IC 555

Saturday, September 6, 2014

Low Power Audio Amplifier Circuit with IC TDA2824S

Tuesday, September 2, 2014

Schematic Audio Power Amplifier with IC AN7110 AN7130

Sunday, August 31, 2014

Amplifier Circuit with IC AN7133