Data retention in a circuit breaker

A method for retaining parameter information generated or received in an electronic circuit breaker, having a controller and operatively connected in a branch circuit coupled to a power source, upon occurrence of a power fault, comprising the steps of:

• generating a control signal responsive to the power fault;
• coupling the control signal to a control input of the circuit breaker;
• and
• storing, responsive to receipt of the control signal at the control input, parameter information generated or received in the electronic circuit breaker, by charging a storage capacitor to a predetermined value corresponding to the parameter information being retained in the circuit breaker.

A method for retaining parameter information generated or received in an electronic circuit breaker that is operatively connected in a branch circuit coupled to a power source, upon occurrence of a power source fault, comprising the steps of:

• comparing a signal proportional to the power source signal with a reference signal;
• outputting a control signal from an output terminal when the power source signal falls below the reference signal;
• coupling the control signal to a control input of the circuit breaker;
• and
• saving, responsive to receipt of the control signal at the control input, the parameter information generated in or received in the electronic circuit breaker by charging a back-up capacitor to a predetermined value.

A method for retaining parameter information generated or received in an electronic circuit breaker that is operatively connected in a branch circuit coupled to a power source, upon occurrence of a power source fault, comprising the steps of:

• comparing a signal proportional to the power source signal with a reference signal;
• outputting a control signal from an output terminal when the power source signal falls below the reference signal;
• coupling the control signal to a control input of the circuit breaker;
• and
• storing, responsive to the receipt of the control signal at said control input, parameter information about a condition external to the circuit breaker, which is generated or received in the electronic circuit breaker, in an EEPROM.

A method for retaining parameter information generated or received in an electronic circuit breaker that is operatively connected in a branch circuit coupled to a power source, upon occurrence of a power source fault, comprising the steps of:

• comparing a signal proportional to the power source signal with a reference signal;
• outputting a control signal from an output terminal when the power source signal falls below the reference signal;
• coupling the control signal to a control input of the circuit breaker;
• and
• storing, responsive to the receipt of the control signal at said control input, parameter information about a condition external to the circuit breaker. which is generated or received in the electronic circuit breaker, in an SRAM.

An apparatus for retaining parameter information generated or received in an electronic circuit breaker, having a controller and operatively connected in a branch circuit coupled to a power source, upon occurrence of a power fault, comprising:

• means for generating a control signal responsive to said power fault;
• means for coupling said control signal to a control input of said circuit breaker;
• and
• means for storing, responsive to receipt of said control signal at said control input, parameter information about a condition external to the circuit breaker, which is generated or received in said electronic circuit breaker.

An apparatus for retaining parameter information generated or received in an electronic circuit breaker, having a controller and operatively connected in a branch circuit coupled to a power source, upon occurrence of a power fault, comprising:

• means for generating a control signal responsive to said power fault;
• means for coupling said control signal to a control input of said circuit breaker;
• and
• means for storing, responsive to receipt of said control signal at said control input, parameter information generated or received in said electronic circuit breaker by charging a storage capacitor to a predetermined value corresponding to said parameter information being retained in said circuit breaker.

An apparatus for retaining parameter information generated or received in an electronic circuit breaker that is operatively connected in a branch circuit coupled to a power source, upon occurrence of a power source fault, comprising:

• means for comparing a signal proportional to said power source signal with a reference signal;
• means for outputting a control signal from an output terminal when said power source signal falls below said reference signal;
• means for coupling said control signal to a control input of said circuit breaker;
• and
• means for saving, responsive to receipt of said control signal at said control input, said parameter information generated in or received in said electronic circuit breaker by charging a back-up capacitor to a predetermined value responsive to receipt of said control signal at said control input.

An apparatus for retaining parameter information generated or received in an electronic circuit breaker that is operatively connected in a branch circuit coupled to a power source, upon occurrence of a power source fault, comprising:

• means for comparing a signal proportional to said power source signal with a reference signal;
• means for outputting a control signal from an output terminal when said power source signal falls below said reference signal;
• means for coupling said control signal to a control input of said circuit breaker;
• and
• means for storing, responsive to the receipt of said control signal at said control input, parameter information about a condition external to said circuit breaker which is generated or received in said electronic circuit breaker, in an EEPROM.

An apparatus for retaining parameter information generated or received in an electronic circuit breaker that is operatively connected in a branch circuit coupled to a power source, upon occurrence of a power source fault, comprising:

• means for comparing a signal proportional to said power source signal with a reference signal;
• means for outputting a control signal from an output terminal when said power source signal falls below said reference signal;
• means for coupling said control signal to a control input of said circuit breaker;
• and
• means for storing, responsive to the receipt of said control signal at said control input, parameter information about a condition external to said circuit breaker which is generated or received in said electronic circuit breaker, in an SRAM.