Tips for Increasing Bass Sound for Car System Sounds

To improve the quality of the car's sound system is to replace standard audio devices. The speaker is the audio device that is most often replaced, the reason for the user is because the sound quality standard speakers are not maximal. In addition to the poor sound quality, if the music volume is loud the speaker sound is not strong enough. 

Let's look at this article how the Power Amplifier & Subwoofer makes the power more maximal The second reason is because replacing speakers is more practical and installation is faster. The market can easily be bought at a fairly affordable price. But do not just buy speakers if you do not understand the specifications of the speaker, not even better, the results of the sound that is not in line with expectations. 

Car Audio Power Bridging Terms

Not only getting married is there a condition, bridging also has conditions. Because if you do not comply with these conditions then your power can be broken down in just a few hours or just a few songs with no maximum. Then what are the conditions? These conditions have been written by the manufacturer, so you should read the manual that indicates the condition if the power is in the cartridge. 

Then what are the conditions? These conditions have been written by the manufacturer, so you should read the manual that indicates the condition if the power is in the cartridge. In refilling the car audio power, we should not arbitrarily connect the cable, it must be right between the pluses and minuses - that's the first condition.

Non-Contact Power Monitor Circuit

This is a design circuit for non-contact AC power monitor for home appliances and laboratory equipment that should remain continuously switched-on. This circuit is built around CMOS IC CD4011 utilizing only a few components. NAND gates N1 and N2 of the IC are wired as an oscillator that drives a piezo buzzer directly. This is the figure of the circuit;

Resistors R2 and R3 and capacitor C2 are the oscillator components. The amplifier comprising transistors T1 and T2 disables the oscillator when mains power is available. In the standby mode, the base of T1 picks up 50Hz mains hum during the positive half cycles of AC and T1 conducts. This provides base current to T2 and it also conducts, pulling the collector to ground potential. As the collectors of T1 and T2 are connected to pin 2 of NAND gate N1 of the oscillator, the oscillator gets disabled when the transistors conduct. Capacitor C1 prevents rise of the collector voltage of T2 again during the negative half cycles. When the power fails, the electrical field around the equipment’s wiring ceases and T1 and T2 turn off. Capacitor C1 starts charging via R1 and preset VR and when it gets sufficiently charged, the oscillator is enabled and the piezo buzzer produces a shrill tone. Resistor R1 protects T2 from short circuit if VR is adjusted to zero resistance. The circuit can be easily assembled on a perforated/breadboard. Use a small plastic case to enclose the circuit and a telescopic antenna as aerial. A 9V battery can be used to power the circuit. Since the circuit draws only a few microamperes current in the standby mode, the battery will last several months.

6V LDO Solar Charge Control Circuit

This is a design circuit for Low Dropout Voltage (LDO) control is a variation of the previously posted 12V LDO control. It is optimized for charging a 6V lead-acid battery with a 9V solar panel. Minimum voltage drop is less than 1V. It uses a simple differential amplifier and series P channel MOSFET linear regulator. This is the figure of the circuit;

In this circuit, the voltage output is adjustable. It may also be applied in two or four cell lead-acid applications (4V & 8V). It is not recommended for 12V applications. Max solar panel rating: 50W (8A, 6V nominal) (open circuit voltage: 9 to 10V). This circuit has output voltage range: 4.7 to 9.8V. While designed for 8A, 50W, it will function just as well at much lower current /power. The input voltage exceeds the input voltage by 0.9V when charging at the maximum rate—the lower, the better. Low Dropout Voltage (LDO) is the catch phrase for anything under approximately 2V.

U1 is an LM317LZ TO-92 voltage regulator that is set to put out 3.1V. Low voltage zeners (below 6.2V) are too sloppy to use as voltage references, so the LM317 is used. Q1 & Q2 make up the classic differential amplifier that amplifies the difference between the reference voltage and the feedback voltage from the arm of potentiometer R6. The output is taken from the collector of Q2 and drives the gate of P Channel MOSFET Q3. Differential voltage gain is probably in the order of 100 to 200. For best performance, I selected Q1 & Q2 for matched hFE (approx 300). As the feedback voltage increases at the arm of R6, Q2 turns on harder and steals some of the emitter current away from Q1. The collector current of Q1 follows the emitter current and drops less voltage across R1 thus reducing Vgs of Q3 and turning it off. C2 provides frequency compensation to prevent the amplifier from oscillating.