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1. WO2011011015 - POWER SUPPLY HAVING LOW QUIESCENT CONSUMPTION

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[ EN ]

CLAIMS

What is claimed is:

1. An electronic circuit, comprising:

a pair of diodes configured to define a voltage ciipper;

a transformer having a primary side and a secondary side, the primary side electrically connected across the voltage clipper:

a voltage tripier electricaliy coupled to the secondary side of the transformer and configured to output an unregulated voltage; and

a voltage regulator electrically coupled to the voltage tripier and configured to output one or more regulated direct-current voltages.

2. The electronic circuit according to claim 1 further configured to be electrically coupled to a line filter of a power supply.

3. The electronic circuit according to claim 2, the line filter defined by a pi-type line filter of a power supply.

4. The electronic circuit according to claim 1 , the voltage clipper configured to limit an alternating-current voltage applied across the primary side of the transformer to not greater than about seven-tenths of a volt absolute value.

5. The electronic circuit according to claim 1 , the voltage tripier including a plurality of Schottky diodes and a plurality of capacitors.

6. The electronic circuit according to claim 1 , the voltage regulator comprising:

a plurality of resistors configured to define a voltage divider;

a first transistor biased by way of the voltage divider and configured to output a first regulated direct-current voltage; and

a second transistor biased by way of the voliaqe divider and configured to output a second regulated direct-current voltage less than the first regulated direct-current voltage.

7. The electronic circuit according to claim 6. the second transistor configured to derive the second regulated direct-current voltage from the first regulated direct-current voltage.

8. The electronic circuit according to claim 1 further comprising a diode configured to electrically couple the voltage tripler to the voltage regulator.

9. The electronic circuit according to claim 1 , the voltage regulator configured such that the one or more regulated direct-current voltages are continuously provided while the voltage tripler provides an electrical current pulse to a predetermined load.

10. The electronic circuit according to claim 9, the predetermined load being defined by a latching relay.

11. The electronic circuit according to claim 1 , the electronic circuit defined by a power dissipation of less than two hundred milliwatts.

12. The electronic circuit according to claim 1 , the transformer defined by a primary side direct-current resistance of less than about ten Ohms.

13. A method, comprising:

clipping an alternating-current voltage applied to a primary side of a transformer using a voltage clipper;

tripling a voltage output from a secondary side of the transformer using a voltage tripler;

electrically coupling an output from the voltage tripler to a voltage regulator using a diode; and

outputting at least one regulated direct-current voltage from the voltage regulator to a load.

14. The method according to claim 13 further comprising electrically coupling the primary side of the transformer to a source of alternating-current electricity using a line filter of a power supply.

15. The method according to claim 13 further comprising providing an electrical pulse from the voltage tripler to a predetermined entity while maintaining the at least one regulated direct-current voltage output from the voltage regulator to the load.