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This kit contains the essential components to build a low voltage, high power mono 18W Bridge Tied Load (BTL) amplifier module using the Hitachi HA13118. The circuit is straight out of the data sheet. Only a few external passive components are required to make the module. The IC contains surge protection circuits and thermal shutdown circuits.
The speaker and cables are not included. This is only to save weight in the kit but also because such items are often a matter of personal preference by the user. Some users may choose to spend more money to buy top quality cables, connectors and speakers, while others may have all these items already in their junk box. A heatsink with a thermal resistance of 3ยบ C/W is provided. |
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OPERATIONAs in all amplifier modules the output power varies with the supply voltage and speaker resistance. In this module the highest output of 18W is achieved at 13.2V into a 4 ohm speaker/
The amplifier IC uses a Bridge Tied Load (BTL) configuration to connect the load. This means that the outputs are floating with respect to the negative supply rail (or ground). Therefore the outputs of the amplifier should never be connected to ground.
DO NOT OPERATE THE MODULE WITHOUT A HEATSINK.
$15.95
