RD7

B

4/99

2

PI-2269-070298

COMPONENT SIDE SHOWN

L1

J1

R1

C3

T1

U2

D2

D3

C6

JP1

C4

C5

U1

D1

J2

VR1

C1

R3

R2

C2

S/N

PI-2187-062998

D2

1N5822

L1

3.3

µH

VR1

IN5228C

T1

C2

2.2 nF

1 KV

D1

UF4005

R1

47 k

Ω

TOP221P

U1

RF1

1

Ω

+

-

D

S

C

CONTROL

C1

10 nF

1 KV

D3

1N4148

C6

0.1

µF

50 V

R2

10

Ω

R3

100

Ω

C4

100

µF

25 V

C5

47

µF

10 V

C

0.1

µF

90-375 VDC

Input

U2

PC817A

5 V – 5%

0.7 A

Fusible

+

-

C

C3

270

µF

25 V

*

* optional component, not populated

TOPSwitch-II

Figure 2. Schematic diagram of the RD7.

Figure 3. RD7 Pinout and Component Legend.

CAUTION

The RD7 is designed for DC input. Please observe the proper polarity when applying power to this board.

Applying reverse polarity or AC power to the input terminals of the board can damage the TOPSwitch.