Patent ID: 7855607
Filing Date: 2010-12-21
Classification: G01R,H03K

Abstract:
1. A ring oscillation circuit comprising: a delay circuit; and a monostable multivibrator, wherein an output of the delay circuit is connected to an input of the monostable multivibrator, an output of the monostable multivibrator is connected to an input of the delay circuit, the delay circuit and the monostable multivibrator configure a positive feedback loop, a pulse width of a pulse signal to be outputted by the monostable multivibrator is shorter than one period of a ring oscillation operation in the positive feedback loop, and in the case that the pulse width of the pulse signal to be outputted by the monostable multivibrator is decreased due to a propagation time difference between a rising edge propagation time and a falling edge propagation time of the delay circuit, the pulse width is longer than the propagation time difference.