Bridge Conﬁguration - Stanford Research Systems SIM954 Operation And Service Manual

300 mhz dual inverting driver amplifier

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3.6 Bridge Conﬁguration

SIM954 300 MHz Dual Inverting Driver Ampliﬁer

2 5 with 5 : 2 turns,

2 6 with 8 : 3 turns,

2 75 with 11 : 4 turns and

2 4 with 12 : 5 turns.

The 8 : 3 turn transformer will lead to a 7.03

seen by the ampliﬁer (i.e. ,a 1 A output current limit translates into

7 W

and 4.9 W

for sinewaves).

peak

e f f

By using both an input and an output transformer, two SIM954 chan-

nels can be operated in a bridge conﬁguration, thereby doubling the

theoretical output power to 14 W

essary output impedance transformation requires a

ratio. This is best achieved with a 9 : 5 turn ratio for a factor of 1 8.

As in the case of the input splitter, an isolated power combiner should

be used (although isolation is not as important as on the input side).

load impedance as

and close to 10 W

peak

e f f

50 14 6

3 – 11

. The nec-

1 85

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