Canon DC20 E Specifiche Scaricare il pdf (Pagina 46)

DC10 E, DC20 E

TECHNICAL DESCRIPTION

3-1 Outline

The main circuit elements and their functions are as follows.

(1) IC100 (SUB MI-COM)

• Control of IC3201

• Error discrimination and display

• Detection and display of charging progress

• Detection of DC JACK connection and voltage

• Detection of internal battery temperature

(2) IC3201 (DC/DC CONVERTER CONTROL)

• Charging voltage/current control

3-2 Operation at Charging

3-2-1 Conditions to Start Charging

When the following conditions are satisfied, the SUB MI-COM (IC100) controls the IC3201 and starts charging.

If the conditions shown in (4) and (5) above are not satisfied or if the type in (6) could not be confirmed, a charge error is indicated.

Conditions Detection Source of detection

1 Main unit power is turned OFF SUB MI-COM -

DC jack is connected. SUB MI-COM pin 12 DC JACK

DC J DET

Power supplied from DC jack SUB MI-COM pin 13 DC IN

DC V DET

UNREG voltage is 8.4 ±0.3 V. SUB MI-COM pin 26 UNREG.

BATT.A/D

Battery temperature is within the range of SUB MI-COM pin 27 Battery T terminal

-6.8°C to 49.3°C. BATT.TEMP

Confirmation of the type of the battery connected SUB MI-COM pin 31 Battery D terminal

BATT.INFO D

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Canon DC20 E Specifiche Pagina 46