This Sure Power product is designed to provide 12V to 24V power conversion for heavy duty applications.
Under and Over Voltage Protection
Reverse Voltage Protection
Voltage Transient Protection
Over load and Short Circuit Protection
Thermal Overload Protection
Sealed from the Elements
Ignition Turn On
Theory of Operation
The 12040C1X / E10 Sure Power converter / equalizer is designed to step up the input voltage in order to achieve the appropriate output voltage. To reduce quiescent current, the converter is
enabled through an ignition terminal. The converters provide a fixed output to power 24V loads directly from a 12V source.
1) Reversal of the input polarity is protected with MOSFETs in series with the ground.
2) Reversal of the output polarity is protected with MOSFETs in series with the output connection.
3) A Metal Oxide Varistor circuit is used to protect the input from load dump and inductive transients.
4) Input under-voltage and over-voltage conditions cause the unit to safely turn off.
Short circuit and current limiting protection is supplied by monitoring the output current. Detection
of a short circuit or overload turns the output off. The unit then cycles the output to determine if
the short circuit has been removed. Upon removal of this condition the output voltage will return
to its normal state.
Thermal protection is provided by monitoring the PCB temperature in different areas. If elevated
temperature is detected, the unit reduces its maximum output current. Normal output current is re
enabled as temperature decreases.
Loss of ground protection ensures no damage occurs to the unit.
Unit is protected against all miss wiring conditions with the exception of the conditions where: Unit
GND is connected to system +12V, Unit +12V is connected to system +24V, and Unit IGN is
connected to system +24V.