User`s manual

DIGITAL-LOGIC AG MPC40/A/B/C, MPC41 Manual V1.4C
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4.4 DC-PowerInput specifications
4.4.1 Nominal DC-PowerInput voltage
The nominal DC-powerinput is within the range of: 10Volt to 28Volt.
That means the device may be used in 12V or 24V battery supplies as used in boats, cars and trucks.
The DC-input is protected with an internal fuse from overcurrent !
To prevent from high voltage spikes there are different voltage supressor diodes integrated. Short spikes up
to 100V may be limited to 28V, to protect the internal electronic components.
4.4.2 Minimal DC-PowerInput voltage specification
If the car is starting the motor, the power supply voltage may be decreased for a short moment under 8Volt.
The MPC is running with a minimal voltage of 7.2Volt , measured at the input of the rear connector.
The following limits are specified:
DC-Input Voltage Duration Comment:
Over 30V Protection circuit will work
28V Highest static input voltage
12/24V Allways: Nominal operating
10Volt Lowest static voltage
8Volt 30sec limit The current is to high !
7.2Volt 5sec limit The high current brings the filters
probably into saturation
6.5Volt 10ms limit Determined by the input capacitor
energy at a given load.