Low-power wire-or matching circuit

A wire-OR matching circuit having low power consumption, comprising:

• an input inverter for inverting an input-enabling signal to generate a middle signal;
• a power switch coupled between the input inverter and a first voltage source for controlling the first voltage source to power the input inverter according to a power switch control signal;
• wherein when the power switch control signal represents “turn on,” the first voltage source powers the input inverter through the power switch;
• a logic processor for receiving a periodic pulse signal and an output-enabling signal, and outputting the power switch control signal according thereto;
• wherein when the periodic pulse signal represents “turn on,” the power switch control signal represents “turn on;”
• wherein when the periodic pulse signal represents “turn off” and the output-enabling signal represents “not enabled,” the power switch control signal represents “turn off;”
• wherein when the periodic pulse signal represents “turn off” and the output-enabling signal represents “enabled,” the power switch control signal represents “turn on;”
• wherein the periodic pulse signal represents “turn on” each one predetermined period, and keeps a predetermined pulse width;
• a disabling module for controlling the middle signal to represent a first predetermined logic according to a control signal;
• wherein when the control signal represents “disabled” or the input-enabling signal represents “not enabled,” the middle signal represents the first predetermined logic;
• wherein when the control signal represents “not disabled,” and the input-enabling signal represents “enabled,” the middle signal represents a second predetermined logic;
• and
• an output inverter for inverting the middle signal to generate the output-enabling signal;
• wherein when the middle signal represents the first predetermined logic, the output-enabling signal represents “not enabled;”
• wherein when the middle signal represents the second predetermined logic, the output-enabling signal represents “enabled”.