Modified sine wave power inverters…or as we would refer to it, as general purpose inverters, are very cost effective. The “Modified” means the AC output waveform is not sinusoidal like your local energy supplier would supply to you, but the important part of the waveform is what is required for most electrical equipment. There is no certain indication or clear cut application where it is not suitable…but our field experience tells us, that in 90% of all applications, the modified sine wave power inverter is good for your application.
This includes, but not limited to, things such as:
- Cellular phone chargers
- Laptops
- Computers
- Some fluorescent lights
- Most DIY tools, like drills and jigsaws
- Small fridges
- Hairdryers and electric shavers.
A lot of people refer to a “Quasi” wave or Square wave power inverter. These power inverters fall within the same category…”Quasi” is just a different name, but square wave... is usually the really “cheap and nasty “systems, which we prefer not to sell. A typical square wave inverter will have the output voltage varying as much as the battery voltage varies. This is not good for appliances. The better quality modified sine wave power inverters, will regulate the output AC voltage, even with a variable input battery voltage.
One cycle of a
sine wave,
square wave, and
modified square wave
output
It is important to realize and to understand that, an inverter...modified or true sine, is only as good as your battery banks’ ability to supply the energy required.
Modified sine wave power inverters do tend the warm up motors (eg. fridges and fans) a bit more, but there are also better quality modified sine power inverters, which neutralize the third harmonic thereby eliminating these tendencies.
There are complaints that modified sine wave power inverters cause some line interference on TVs ….this is more caused due to the high frequency content of the internals of the modified sine wave power inverter and not the wave form that goes out to your TV for power….In other words it is more a “poorly shielded” power inverter that causes the problem, then it is a waveform itself …a lot of these problems can be reduced simply by moving the inverter further away from the TV.
Poorly shielded power inverters cause line interference on TVs
Laptops and cellular phone chargers operate perfectly using a modified sine wave power inverter…Microwaves…well a true sine wave power inverter is better…refer to the report on various load tests which we done , for the comparative performances.
What ever your application, please do not hesitate to contact us, to assist you with your application and make the correct choice of power inverter
Our full range of DC to AC modified sine wave power inverters are as follows:
LIGHTWEIGHT- Modified Sine Power Inverter (AH Series)
|
Number |
Rating |
Voltage |
Inverter Functionality |
Size |
Weight |
Picture |
Specsheet (PDF format download) |
PM-A-150B |
2150W2 |
12V |
Low battery Alarm
Low battery shut down
Low and High Voltage protection
Overload protection
Over heat protection
Modified Sine wave
|
Ø 65x150 |
0.43 |
|
|
PM-A-150AH |
150W |
12V |
116X102X63 |
0.7 |
|
|
PM-A-350AH |
350W |
12V |
190X102X63 |
1.2 |
|
|
PM-A-600AH |
600W |
12V |
250X176X83 |
2.4 |
|
|
PM-A-800A H |
800W |
12V> |
270X249X93 |
3.9 |
|
|
PM-A-1000AH |
1000W |
12V |
340X249X93 |
4.3 |
|
|
PM-A-1500AH |
1500W |
12V |
466X249X93 |
5.9 |
|
|
Keywords for this page:
Inverter, Inverters, Power inverter, power inverters, Modified sine wave inverter, DC to AC power inverter, inverter, power inverter, square wave inverter
