STK412 Просмотр технического описания (PDF) - SANYO -> Panasonic

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STK412

Two-Channel Shift Power Supply Audio Power Amplifier ICs 50W + 50 W

SANYO -> Panasonic 

STK412-090

*3. Use the transformer power supply specified in the figure below for allowable load shorted time and output noise voltage measurements.

*4. Design circuits so that (|VH| - |VL|) is always less than 40 V when switching the power supply with the load connected.

*5. Set up the VL power supply with an offset voltage at power supply switching (VL - LO) of about 8 V as an initial target.

DBA40C

10000µF

+VH

+

500Ω

+

500Ω

--VH

10000µF

Specified Transformer Power Supply

(MG-250 equivalent)

DBA40C

10000µF

+VL

+

500Ω

+

500Ω

--VL

10000µF

Specified Transformer Power Supply

(MG-200 equivalent)

Internal Equivalent Circuit

13

TR1

TR2 D2 R3

TR6

C2

C1

R1

TR3

14

TR4

R4

TR8

TR9

TR10

15

16

TR5

R5

R6

TR7

R2

D1

R7

12

7

SUB

1

R41

TR41

TR19

D12

R13

TR12

TR11

TR16

C12

C11

TR20 TR18

TR14

R14

R11

TR13

Comparator

3

D42

D43

2

D41

R15

R16

TR17

R17

TR15

R12

D51

D53

5

D52

4

Comparator

TR51

R51

6

9 8 11 10

17 18

No. 7249-3/4

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