Patent ID: 8274315

Claim:
A voltage sequence output circuit sequentially triggering electronic devices, each electronic device comprising a ground terminal and a power terminal, the voltage sequence output circuit comprising: first and second input terminals respectively connected to the ground terminals of the electronic devices; first and second output terminals respectively connected to the power terminals of the electronic devices; a first control circuit comprising a NOR gate and a first electrical switch with first to third terminals, wherein input terminals of the NOR gate are connected to the first and the second input terminals, an output terminal of the NOR gate is connected to the first terminal of the first electrical switch, and the third terminal of the first electrical switch is connected to a power source; and a voltage output circuit comprising a second electrical switch, a third electrical switch, a first resistor, and a second resistor, wherein a first terminal of the second electrical switch is connected to the first input terminal and also connected to the power source through the first resistor, a second terminal of the second electrical switch is connected to the second terminal of the first electrical switch, a third terminal of the second electrical switch is connected to the first output terminal and also connected to a second terminal of the third electrical switch, a first terminal of the third electrical switch is connected to the second input terminal and also connected to the power source through the second resistor, and a third terminal of the third electrical switch is connected to the second output terminal.