Circuit Wiring Solution: 2

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Sunday, September 14, 2014

2 x 32W DUAL BRIDGE CAR RADIO AMPLIFIER TDA7393

Features:

HIGH OUTPUT POWER CAPABILITY:
2 x 35W max./4Ω
2 x 32W EIAJ/4Ω
2 x 22W typ./4Ω @ 14.4V, 1KHz, 10%
2 x 19W typ./4Ω @ 13.2V, 1KHz, 10%
2 x 28W typ./2Ω @ 14.4V, 1KHz, 10%
2 x 25W typ./2Ω @ 13.2V, 1KHz, 10%
LOW DISTORTION
LOW OUTPUT NOISE
ST-BY FUNCTION
MUTE FUNCTION
AUTO-MUTE AT MIN. SUPPLY VOLTAGE
DETECTION
LOW EXTERNAL COMPONENT COUNT
– INTERNALLY FIXED GAIN (32dB)
– NO EXTERNAL COMPENSATION
– NO BOOTSTRAP CAPACITORS
ADDITIONAL MONO INPUT
OUTPUT AC/DC SHORT CIRCUIT TO GND
AND TO VS
VERY INDUCTIVE LOADS
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER

Circuit Diagram:

2 x 32W DUAL BRIDGE CAR RADIO AMPLIFIER

Monday, September 8, 2014

2 x 23 W high efficiency car radio power amplifier

FEATURES:

Low dissipation due to switching from Single-Ended (SE) to Bridge-Tied Load (BTL) mode

High Common Mode Rejection Ratio (CMRR)

Mute/standby/operating/SE-only (mode select pin)

Zero crossing mute and standby circuit

Load dump protection circuit

Short-circuit safe to ground, to supply voltage and across load

Loudspeaker protection circuit

Device switches to single-ended operation at excessive junction temperatures.

GENERAL DESCRIPTION:

The TDA1561Q is a monolithic power amplifier in a 13 lead single-in-line (SIL) plastic power package. It contains two identical 23 W amplifiers. The dissipation is minimized by switching from SE to BTL mode, only when a higher output voltage swing is needed. The device is primarily developed for car radio applications.

Circuit Diagram:

2 x 23 W high efficiency car radio power amplifier

Datasheet for TDA1561Q: Download

Saturday, September 6, 2014

TDA7490 Audio Amplifier 2 x 25W 1 x 50W

TDA7490general description:

The TDA7490 is a dual audio class D amplifier assembled in Flexiwatt 25 package; it is specially designed for high efficiency application mainly for TV and Home Stereo sets. TDA7490 Audio Amplifier 2 x 25W / 1 x 50W

TDA7490 features:

25W + 25W OUTPUT POWER:
RL = 8Ω/4Ω; THD = 10%
HIGH EFFICIENCY
WIDE SUPPLY VOLTAGE RANGE (FROM
±10 TO ±25V)
SPLIT SUPPLY
TURN OFF/ON POP FREE
ST-BY AND MUTE FEATURES
SHORT CIRCUIT PROTECTION ACROSS
THE LOAD
THERMAL OVERLOAD PROTECTION
EXTERNALLY SINCHRONIZABLE
BRIDGE CONFIGURATION

TDA7490 sterio circuit diagram:

TDA7490 Audio Amplifier 2 x 25W / 1 x 50W circuit diagram

TDA7490 mono circuit diagram:

TDA7490 Audio Amplifier 2 x 25W / 1 x 50W mono circuit diagram

TDA7490 sterio circuit pcb:

TDA 7490 pcb layout

Thursday, September 4, 2014

2 3 W Mono power amplifier schematic

This amplifier circuit using ic BA534 as a main amplifier, manufactured by ROHM ic, and packaged in SIP1-8. This amplifier circuit has a maximum output of 2.3 Watts with 4 Ohm impedance. Frequency response is between 30Hz to 18KHz. For the voltage needed at least 9 Volt and 13 Volt maximum. For a list of components can be seen below.

Part List :
R1 = 50K trim
R2 = 33K
R3 = 68R
C1 = 2.2uF
C2 = 220uF
C3 = 100uF
C4 = 47uF
C5 = 470uF
C6 = 100uF
C7 = 47uF
C8 = 100n
U1 = BA534

Wednesday, September 3, 2014

Part 2 High Voltage Supply Wiring diagram Schematic

This High-Voltage Supply Circuit Diagram uses a transistor oscillator and a voltage multiplier to charge CIO and CI 1 to a high voltage. When the spark gap breaks down, T2 produces a high-voltage pulse via the capacitance discharge of CIO and Cll into its primary. T2 is an auto ignition coil.

Read : High-Voltage Pulse Supply Circuit Diagram

High-Voltage Supply Circuit Diagram

Saturday, August 23, 2014

9 Volt 2 Amp PSU Single IC Regulator Power Supply

Notes

There is little to be said about this schema. All the assignment is done by the regulator. The 78S09 can bear up to 2 amps connected achievement whilst advancement a low babble and actual able-bodied adapted supply.

The ambit will assignment after the added components, but for about-face polarity aegis a 1N5400 diode is provided at the input, added cutting actuality provided by C1. The achievement date includes C2 for added filtering, if powering a argumentation ambit than a 100nF capacitor is additionally adorable to abolish any aerial abundance switching noise.

via : http://www.zen22142.zen.co.uk/Circuits/Power/9v2a.htm

Monday, August 18, 2014

2 x 6W CAR RADIO AMPLIFIER PLUS SOLID STATE SWITCH TDA7365

General Description

OUTPUT POWER 2x6W/4Ω @14.4V, 1KHz, 10%
SOLID STATE POWER SWITCH INCLUDED (1A @ VDROP = 0.8V Typ.)
MINIMUM EXTERNAL COMPONENT COUNT
- INTERNALLY FIXED GAIN (40dB)
- NO BOOTSTRAP CAPACITORS
- NO EXTERNAL COMPENSATION
ST-BY FUNCTION (CMOS COMPATIBLE)
MUTE FUNCTION (CMOS COMPATIBLE)
NO AUDIBLE POP DURING MUTE/ST-BY
OPERATIONS
LOW SUPPLY SELF MUTING
PROTECTIONS
AC AUDIO OUTPUTS SHORT CIRCUIT TO GND
DC AUDIO OUTPUTS SHORT CIRCUIT TO
GND AND TO VS AT POWER ON
SWITCH OUTPUT INTERNAL CURRENT LIMITATION
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOAD DUMP
FORTUITOUS OPEN GND

Circuit diagram:

2 x 6W CAR RADIO AMPLIFIER PLUS SOLID STATE SWITCH

10 16 Volt Stereo 2 x 5 5 power amplifier

This amplifier circuit or with it based on ic KA2210 main amplifier, audio amplifier circuit should disupplay minimum of 10 Volt and up to 16 volts. Power output is 2 x 5.5 W stereo amplifier att. By using this amplifier you can listen to the strains of songs from mp3 player, iPod, etc.

This is schematic diagram

Part List

R1 = 4.7R

R2 = 4.7R

C1 = 1uF

C2 = 100uF

C3 = 47uF

C4 = 100uF

C5 = 0.1uF

C6 = 1000uF

C7 = 1uF

C8 = 100uF

C9 = 47uF

C10 = 100uF

C11 = 0.1uF

C12 = 1000uF

IC = KA2210