Dual Rectifier Isolator
A dual rectifier has all the same outstanding performance characteristics of a single rectifier, but provides discharge protection for two batteries; two, one-way electrical valves in a single package. DC current will flow from the alternator to the batteries, but current will not flow between the batteries when discharged. Dual rectifiers are commonly deployed in dual battery configurations where each battery may be discharged independent of the other.
A common problem with conventional “marine” or “RV”; style isolators (aside from performance issues related to the obvious voltage drop and associated heat) is dealing with an internally regulated alternator. A dedicated excitation circuit insures hassle-free integration with internally regulated alternators. Ultra-low on-resistance means devices require no heat sinking and no airflow at currents up to 300 amps. . Dual rectifiers are epoxy encapsulated in a custom ABS enclosure and are well suited for hostile environments. An inline, fast-blow, one amp fuse on the primary ground wire protects the device from reverse polarity should the battery be connected incorrectly. POWER-GATE is recommended by top battery manufacturers to insure that DC power gets to where it’s needed without the excessive heat and voltage loss typified by more common, lesser performing silicon and Schottky devices.
New in 2013 is the addition of an optional Battery Combine feature. When the Battery Combine Feature is activated, the default isolation mode is temporarily overridden and both MOSFET arrays are forced into the energized mode. This causes the batteries to combine. For example, if the main starting battery is discharged to the point where the vehicle won’t crank, by pressing a mini logic-level momentary switch, the Battery Combine feature will enable the auxiliary battery to pass current to the main starting battery, at which point cranking can take place. Once the vehicle is started, release the momentary switch and POWER-GATE will default back to its full isolation mode.
Watts Dissipated Chart
Dual Rectifier Part Numbering Guide 2012 – v1
Dual Rectifiers can handle between 100 amps and 300 amps.
For current levels less than 100 amps, or exceeding 300 amps, please contact our engineering department at 858.720.1339.
For OEM applications, military and fleet sales, or special applications, please call us at 858.720.1339.
For pricing or online purchase, call 858.720.1339 for special log-in, or email us at info@perfectswitch.com