Pulse stretching circuit and method

A pulse stretching circuit, comprising:

• a pulse delay circuit for receiving an inverted input pulse signal and for outputting a delay pulse signal;
• and
• a pulse adjustment circuit connected to the pulse delay circuit, the pulse adjustment circuit receives the input pulse signal and the delay pulse signal and outputs an output pulse signal having a pulse width longer than a pulse width of the input pulse signal, the pulse adjustment circuit causes a leading edge of the output pulse signal in response to a leading edge of the input pulse signal, and a trailing edge of the output pulse signal in response to a trailing edge of the delay pulse signal, wherein the pulse adjustment circuit comprises:
• a latch circuit set by a set signal generated from the input pulse signal, reset by a reset signal generated from the delay pulse signal, and causing an output pulse signal;
• and
• an OR circuit connected to the pulse delay circuit and the latch circuit, the OR circuit outputs a logical sum of the input pulse signal, the delay pulse signal, and the output pulse signal of the latch circuit, the OR circuit comprises a 3-input NAND circuit for receiving the input pulse signal, the delay pulse signal, and the output pulse signal of the latch circuit.