Schematic Rise

Showing posts with label basic. Show all posts

Wednesday, September 17, 2014

BASIC ELECTRIC AND MAGNETIC CIRCUITS

Power and energy are two terms that are often misused. Energy can bethought of as the ability to do work, and it has units such as joules or Btu. Power, on the other hand, is the rate at which energy is generated or used, and therefore it has rate units such as joules/sor Btu/h. There is often confusion about the units for electrical power and energy. Electrical power is measured in watts, which isarate(1J/s=1 watt), so electrical energy is watts multiplied by time—for example, watt-hours.

Be careful not to say”watts per hour,”which is incorrect (eventhoughyou will see this all too often in newspapers or magazines). When a battery delivers current to a load, power is generated by the battery and is dissipated by the load. We can combine (1.1) and (1.2) to find an expression for instantaneous power supplied, or consumed, by a component of a circuit. The key electrical quantities already introduced and the relevant relationships between these quantities are summarized in Table 1.1. Since electrical quantities vary over suchalargerange of magnitudes, you will often find yourself working with very small quantities or very large quantities.

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Monday, September 15, 2014

Basic Low Pass Filter

Low pass filter is a low-pass filter with low frequency signals but attenuates (reduces the amplitude of) signals with frequencies higher than cutoff frequency. The actual amount of damping for each frequency varies from filter to Filtering.

Tuesday, August 19, 2014

Basic Combinations Of Subs And Amps

When we first get a sub for our car a person has multiple choices to choose from. Starting with the basic queries which are how many subs you want and what will be their sizes that go perfectly with your amplifiers. It is necessary to pick subs and amps that are completely compatible with each other otherwise clash between one of them will either decrease the life of them or will not let them work at all. If you already have purchased either one of the subs or amps then Internet is the best way to find its compatible amp or sub respectively. Otherwise, websites like mtx.com have a complete chart that will suggest which amp is compatible and best for a particular sub.

Compatibility of amps and subs are very important otherwise the clash will either take both of the devices down or will unable to play either one of them. The subs and amps can be picked out at the same time to avoid any incompatibility between them but if you already have one of them at home then browse a little on Internet to find out which one of the other best suits it.

In subs, you have two main choices which are either single voice coil and dual voice coil that gives you option for more wiring. Therefore this result in excellent performance and incredible power handling, exceptions excluded.

In the purchasing of an amplifier the most and the only thing important is to choose how much amount of power you need for your subwoofers. Once you have decided that you can get one that fits the compatibility factor as well as your requirement. A mono amplifier or a two-channel amplifier is the choices in this category though. The four common types of combinations for subwoofers are discussed further.

The bright side of each of these combinations will be kept in mind while choosing the right type of amp for it.

Single 4-ohm Voice coil sub:
As the single voice coil sub has less wiring therefore they are compact, simple and cheaper. They do not take too much room with a great result. This voice coil sub is perfectly compatible with a two-channel amp as they work fine with 4-ohms. Make sure you do not use a mono amp here as they are best well-suited with less than 4-ohms.

One 4-ohm dual voice coil sub:
Dual voice coils as mentioned earlier can be wired in multiple ways making it easier for you which also results in great performance and power handling. Most of the dual voice coil subs are compact too. Mono amps which are built for lower impedance usage and most power production are ideal for this type of voice coil sub.

Two 4-ohm single voice coil subs:
For producing accurate and tight bass you can get two subwoofers to thump harder. This may take up more room but it depends on your priorities – more bass or trunk space? Mono amps are perfect for this category as more power and performance is expected from them.

Two 4-ohm dual voice coil subs:
Again dual voice coil subs provide multiple wiring that brings us to flexibility and convenience. Two-channel amp is again the right choice for here resulting in powerful bass.

Now the above mentioned combinations were the basics and common one. You can look for more combinations if you want to experiment and bring the most out of your amps and subs. Only remember a little browsing before buying never goes to waste