CHAIN FREE-CHARGE CIRCUIT AN POWER SUPPLY

摘要

The circuit includes a pad (1) for receiving chain enable signals, and a schmidt trigger (2) for using start-up signals. A control section (5) is connected to the rear end of the shcmidt trigger (2) and uses start-up signals, while the rear end of the control section (5) is connected to a NAND gate (ND) and buffering inverters (I1-I3). A pre-charging means is installed at the front of the output buffering inverter (I3) and between the pad (1) and the schmidt trigger (2) to prevent the floating phenomenon. With the circuit, the pre-charge can be more speedily carried out, and the latch-up phenomenon can be prevented.