Led indicator disable circuit and led indicator incorporating the led indicator disable circuit

An LED indicator for providing an indication on at least one LED, comprising:

• (a) a driving circuit configured to drive said at least one LED based on an input line voltage, and including (al) a control circuit configured to control driving of the at least one LED by enabling driving of said at least one LED when receiving a first logical signal and disabling driving of said at least one LED when receiving a second logical signal;
• (b) an input configured to sense the input line voltage;
• (c) a circuit connected to said input and configured to output the first logical signal when the sensed input line voltage is above a threshold value and to output the second logical signal, opposite to the first logical signal, when the sensed input line voltage is below the threshold value;
• and
• (d) a signal line configured to connect an output of said circuit to said control circuit, said control circuit disabling driving of said at least one LED when the output of said circuit is the second logical signal.

An LED indicator disable circuit connected to an LED driving circuit including a control circuit controlling driving of an LED indicator by enabling driving of the LED indicator when receiving a first logical signal and disabling driving of the LED indicator when receiving a second logical signal, comprising:

• (a) input means for sensing an input line voltage in the LED driving circuit;
• (b) circuit means for outputting the first logical signal when the sensed input line voltage is above a threshold value and to output the second logical signal, opposite to the first logical signal, when the sensed input line voltage is below the threshold value;
• and
• (c) means for supplying an output of said circuit means to the control circuit, the control circuit disabling driving of the LED indicator when an output of said circuit means is the second logical signal.

An LED indicator for providing an indication on LED indicator means, comprising:

• (a) driving means for driving said LED indicator means by enabling driving of the LED indicator means when receiving a first logical signal and disabling driving of the LED indicator means when receiving a second logical signal;
• (b) input means for sensing an input line voltage in sail driving means;
• (c) circuit means for outputting the first logical signal when the sensed input line voltage is above a threshold value for outputting the second logical signal, opposite to the first logical signal, when the sensed input line voltage is below the threshold value;
• and
• (d) means for supplying an output of said circuit means to said driving means, said driving means disabling driving of said LED indicator means when an output of said circuit means is the second logical signal.