MFJ MFJ-4416C Instruction Manual Download Page 14 | Manualshive

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MFJ-4416C Super Battery Booster

Instruction and Technical Manual

Version 0A

14

Schematics

Figure 10 SMPS Section Schematic

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Summary of Contents for MFJ-4416C

Page 1: ......

Page 2: ...tions 7 External Control 7 Remote Control 8 Operation 9 INTERNAL HEADER AND CONTROL 9 HDR1 Low Voltage Lockout 9 HDR2 Low Voltage Lockout Enable 9 HDR3 Audio Alert Enable 10 HDR4 Low Voltage Boost Tri...

Page 3: ...oblems With its high efficiency boost regulator circuitry it will maintain the desired 13 8 volts at up to 25 amps ICAS from voltages as low as 9 volts The MFJ 4416C has been redesigned to make the de...

Page 4: ...5 Amps ICAS 30A peak Output Voltage 13 8 Volts at 9 13 8 volts input Before attempting to operate your MFJ 4416C please read the manual thoroughly It contains important details about setting up your u...

Page 5: ...nd Outputs 1 5 2 6 3 7 4 8 Figure 1 Top View 1 5 Way High Power Binding Post Negative Input 2 Anderson PowerPole TM Negative Input 3 Anderson PowerPoleTM Positive Input 4 5 Way High Power Binding Post...

Page 6: ...ed Disabled Switch is in the Enabled position 3 Low Battery LED The LED Illuminates the low voltage trip threshold has been crossed If the latching feature is enabled the MFJ 4416C must be removed fro...

Page 7: ...minals crimp lugs banana plugs or wires straight to the 5 way binding posts Follow the connector manufacturers instructions for attaching the terminal lugs Make sure the lugs are tightly crimped to in...

Page 8: ...J 4416BRC and the MFJ 4416C REMOTE CONTROL RJ 45 Jack Figure 5 External Enable to Amp Key Figure 6 Remote Control Figure 7 Ignition Sense EXTERNAL BOOST CONNECTOR DE 9 Pin Function 1 GROUND TO ENABLE...

Page 9: ...es that protect the input and output from exceeding 18V or being reverse wired The MFJ 4416C is not designed to boost the voltage of a 6V electrical system up to 13V and will not run on a positive gro...

Page 10: ...er Enable A jumper on this header enables the Low Voltage Boost Enable function Default is no jumper R8 Voltage Adjust This trimpot sets the output voltage Set from the factory at 13 8 volts this leve...

Page 11: ...voltage The tapped points on the two windings are fed to the common cathode rectifier pair D3 Using MOSFET Q1 as an example for both the Q1 and Q2 circuitry The gate circuit consists of R6 R3 and FB1...

Page 12: ...lding the SMPS boost on The delay is to allow current peaks during SSB and CW that pull that battery low and trigger the SMPS to be held allowing a continuous SMPS boost output to assure a constant vo...

Page 13: ...e will drop fast with any load The battery life may suffer and the vehicle may not start when the battery is that low http www eetimes com author asp section_id 36 doc_id 1320644 TECHNICAL ASSISTANCE...

Page 14: ..._____________________________________________________________________ MFJ 4416C Super Battery Booster Instruction and Technical Manual Version 0A 14 Schematics Figure 10 SMPS Section Schematic...

Page 15: ..._____________________________________________________________________ MFJ 4416C Super Battery Booster Instruction and Technical Manual Version 0A 15 Figure 11 Control Section Schematic...

Page 16: ...check or money order must be provided to cover postage and handling 4 This warranty is NOT void for owners who attempt to repair defective units Technical consultation is available by calling 662 323...

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