Drive circuit

摘要

As one embodiment a drive circuit is disclosed. When a three-value signal including a value representing zero is input, the drive circuit outputs two two-value signals that drive two drive elements such that the difference between values representing the two two-value signals corresponds to a value representing the input three-value signal. When the value of the input three-value signal represents zero, output signals are determined in accordance with the input history of the three-value signal. The drive circuit may also be provided with a memory that records a flag value that is reversed in accordance with the input history of the input three-value signal, and the combination of the output two two-value signals being determined in accordance with the flag.

主权项

1. A drive circuit to which a three-value signal including a value representing 0 is input, and which outputs two two-value signals for driving two drive elements such that a difference between the values representing the two two-value signals corresponds to a value representing the three-value signal, which is input,
the drive circuit is connected to a logic circuit being input the three-value signal and a memory storing a flag value of the first flag determined based on the three-value signal input to the logic circuit, the drive circuit determining a combination of the two two-value signals, which are output, according to the flag value of the first flag stored in the memory and a value of the three-value signal, which is input to the logic circuit, in the case where the value of the three-value signal represents 0.