Furuno manual Battery charger BC-6158

4.4 Battery charger(BC-6158)

4.4.3 Battery charger (BC-6158)

Battery charger BC-6158 can charge clad type or pasteboard vent type batteries of up to 300 AH. It is a constant voltage/current charger which supplies a constant voltage of 28 V and a constant charging current of 20 A (30 A).

V

28V

Fig. 4.4.4

I

20A(30A)

The power supply to the charger is connected to a tap of transformer T1 which is selected according to the supply voltage.

The maximum charging current differs according to the capacity of the battery to be charged. For example, for a battery of 200 AH the maximum charging current is 20 A and for a 300 AH battery the current is 30 A. VR2 adjusts the maximum current to 20 A or 30 A. VR1 adjusts the output voltage of the charger to 2826V..7vThe thermal sensor is mounted on the heat radiator of the charger, and it operates when the sensor detects a temperature of 60 degrees.

TB 1

AC IN (1, 2)

TB 3

24V 5

CHARGE 6

0V 7

K1

	FAN	FM1
	T1
110V			S1
100V	Full wave rectifier		6o degrees
			thermal sensor
	Power conrol			30A
0V			R1,2,3,4	CR2 Breaker
110V		Q1		CP1
100V	U1/U2
			Q2	VR2
0V		Over current
		detector
	AMP.	Q4/Q5	CR3/Q3
			Voltage error	VR1
			detctor

TB 2

1BATT+

2BATT-

TB 3

1BATT+

2BATT-

3BATT+

4BATT-

Fig. 4.4.5 BC-6518 block diagram

VR2	VR1
(Over current ADJ. VR:
	(Over voltage ADJ. VR:
Adjust to 20A)
	Adjust to 28V)
		２６．７ｖ
05P0659 board
	S1: 60 degrees
	thermal sensor

Fig. 4.4.6 BC-6158 left side

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