US 6,982,571 B2 | ||
Systems and methods for translating voltage levels of digital signals | ||
Kenneth J. Eldredge, Boise, Id. (US); and Michael C. Allyn, Boise, Id. (US) | ||
Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US) | ||
Filed on Dec. 04, 2003, as Appl. No. 10/727,402. | ||
Prior Publication US 2005/0122133 A1, Jun. 09, 2005 | ||
Int. Cl. H03K 19/0175 (2006.01) |
U.S. Cl. 326—63 | 20 Claims |
1. A method for translating voltage levels of digital signals, said method comprising:
providing a first digital signal operating between a first voltage and a second voltage, the first voltage corresponding to
a logic 0 and the second voltage corresponding to a logic 1;
providing the first digital signal as an input to a capacitive element, an output of the capacitive element being electrically
connected in parallel to a first branch and a second branch, the first branch being electrically connected to a third voltage,
the second branch being electrically connected to a fourth voltage; and
causing the first and second voltages to interact with the first branch and the second branch such that a second digital signal
is produced, the second digital signal operating between the third voltage and the fourth voltage;
wherein the first branch comprises a first diode and a first RC circuit electrically connected in parallel, and the second
branch comprises a second diode and a second RC circuit electrically connected in parallel.
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