March 27, 2019

DC to AC Inverters for Inductive Loads

Take a look at the PowerStream Inverter FAQ

Inverters for inductive loads

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Most DC/AC inverters have a difficult time starting inductive loads, such as fluorescent lights, refrigerators, motors, tools, and TVs. We use a digital signal processor to adjust the inverter's waveform to allow inductive loads to start reliably. See the application chart below. These inverters also work well when used with non-inductive loads, computers, and switching power supplies.
16MHz RISC High Speed MCU Digital Control

Low Input Voltage Drop Out

Input Binding Posts

2 LED Multi-function Indicators :
Battery Low, Battery Alarm, Short Circuit,
Over Temperature, Over Voltage

Buzzer Alert

Input Fuse Protect

DC Input Polarity Reverse Protection

Input/Output Over Voltage Protect

Input Battery Low Warning

Modified Sine AC Output

Output Current Limit

Output Short Circuit Protect

Over Temperature Protect

Switch Mode Operation, High Efficiency (~90%)

True Continous Rated Power Without Overheating

Power MOSFET,Force Air Cooling

Good Load & Line Requlation

Blue Anodized Aluminium Housing,with Mounting Clips

Model:	DC Input	AC Output	Rated Power for resistive loads	Rated Power for Inductive loads	Max. Power	Stock
DA-600-24-1 5lbs, 13.25x4.75x2.75 inches	24V	110V	500W	250W	600W	In Stock $160
NOTE: The following are special order, and take 4 weeks manufacturing time.
DA-300-12-2	12V	220V	250W	125W	300W
DA-600-12-2	12V	220V	500W	250W	600W
DA-1200-12-2	12V	220V	1000W	500W	1200W
DA-300-12-1	12V	110V	250W	125W	300W
DA-600-12-1	12V	110V	500W	250W	600W
DA-1200-12-1	12V	110V	1000W	500W	1200W
DA-300-24-2	24V	220V	250W	125W	300W
DA-600-24-2	24V	220V	500W	250W	600W
DA-1200-24-2	24V	220V	1000W	500W	1200W
DA-300-24-1	24V	110V	250W	125W	300W
DA-1200-24-1	24V	110V	1000W	500W	1200W

Following is a rough estimate of the inductive loads that can be started with these inverters.

Electric Appliance	DA-300	DA-600	DA-1200
Fluorescent Lamp With Inductive Ballast	40Wx4(160W)	40Wx8(320W)	40Wx16(640)
Electric Drill	160W	320W	640W
Heat Gun	160W	320W	640W
Electric Pump	160W	320W	640W
Electric Jigsaw	160W	320W	640W
Fridge	160W	320W	640W
Electric Motor	160W	320W	640W

Advantages:

Inexpensive inverters with relatively light weight for power supplied.

Protects battery from overdischarge damage.

Alarm sounds some time before it cuts out due to low battery. How long this is depends on your battery capacity.

Low cost.

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