8

SANKEN ELECTRIC CO., LTD.

BR202-DS, Rev. 0.03E

POL Converter Module for 12 V System Intermediate Bus

BR202/203

Application Information

Test Measuring Circuit

The test measuring circuit used for establishing the BR202/203

electrical characteristics is is shown in figure 7.

capacitors, placed near the I/O terminals of the BR202/203.

Ripple Voltage Measuring Method

Figure 8 provides the test measurement circuit used for establish-

ing voltage ripple.

Figure 7. Test circuit for electrical characteristics

Figure 8. Test circuit for ripple voltage measurement

BR202/203

ON/OFF

PG

VIN

GND

Power

Good

GND

ON/OFF

VS+

VOUT

RTRIM

VIN

VOUT

GND

Rated

Load

50 Ω

10 nF

Terminator

Oscilloscope

BW 20 MHz

Z = 1 MΩ

BR202/203

1.5D2V coaxial cable

(RG-174/U equivalent)

1.5 m length

Ceramic capacitor, 200 μF

Install near the test probe

Keisoku Giken

TRC-50F

Equivalent circuit

Switching

Period

Vrip