The legislators will have only two weeks to make a decision after returning to work in early September.
However, the dollar stabilized at night amid expectations of new signals from Yellen about plans to reduce the Fed's balance sheet.
The dollar may finish the week with a rise of 0.4 percent to the yen after a decline to 108.60 yen amid tensions around the Korean peninsula.
The euro increased by 0.2 percent to $ 1.1820 by 14.42 GMT, on Friday. The dollar added 0.1 percent to 109.65 yen.
The latest data on consumer prices in Japan demonstrated that it could become one of the main topics for discussion at the Jackson Hole Symposium: why inflationary pressures have been so low for so long, despite the synchronized, seemingly global economic recovery.
Basic consumer prices in Japan rose for the seventh month in a row in July in annual terms, however, only by 0.5 percent and mainly because of the increase in the cost of gasoline. The yen practically did not react to the data.
Strengthening the euro has complicated the task for the ECB, and traders continue to watchfully wait for Draghi's possible comments on the growth of the single European currency.
The dollar index to the basket of major currencies slid 0.1 percent to 93.155 after rising 0.15 percent at night on the back of rising yields of US state bonds.
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