| 摘要 |
The protection circuit (A) of the invention comprises a NOR logic circuit (1) to which output voltages of SMPS are connected and which orders the switch (3) to interrupt the power flow in case of an error by controlling these output voltages; a delay circuit (2) which prevents the activation of the protection system for a period when the system is first activated; a switch (3) connected to the said NOR circuit and delay circuit, which ensures that the power transmission is interrupted by switching off the integrated circuit (IC) in case of an error; serial switches (4) (Q205) controlled by the stand-by control signal (6) coming from the micro controller, which separate the output voltage lines from NOR circuit inputs during stand-by. |
