Circuit configuration for operating a household appliance
View Patent ↗A circuit for operating a household appliance includes a controller that controls processes of a household appliance, a switching power supply that supplies current to the controller, a pushbutton that couples the switching power supply to a supply grid, an electronic controller connected parallel to the pushbutton that is actuable by the switching power supply by a control connection, and a voltage storage connected between the control connection of the electronic controller and a reference potential.
1. A circuit for operating a household appliance, comprising:
a controller that controls processes of a household appliance;
a switching power supply that supplies current to the controller;
a pushbutton that couples the switching power supply to a supply grid;
an electronic controller connected parallel to the pushbutton that is actuable by the switching power supply by a control connection of the electronic controller; and
a voltage storage connected between the control connection of the electronic controller and a reference potential.
2. The circuit of claim 1 , wherein the electronic control element comprises a MOS-FET, and the control connection comprises a gate pole.
3. The circuit of claim 1 , wherein the voltage storage comprises a buffer capacitor, a battery, or an accumulator.
4. The circuit of claim 1 , further comprising a voltage limiting diode connected between the control connection and the reference potential in parallel with the voltage storage.
5. A circuit for operating a household appliance, comprising:
a controller that controls processes of a household appliance;
a switching power supply that supplies current to the controller;
a pushbutton that couples the switching power supply to a supply grid;
an electronic controller connected parallel to the pushbutton that is actuable by the switching power supply by a control connection;
a voltage storage connected between the control connection of the electronic controller and a reference potential, and
a discharge resistor connected between the control connection and the reference potential in parallel with the voltage storage.
6. A circuit for operating a household appliance, comprising:
a controller that controls processes of a household appliance;
a switching power supply that supplies current to the controller;
a pushbutton that couples the switching power supply to a supply grid;
an electronic controller connected parallel to the pushbutton that is actuable by the switching power supply by a control connection;
a voltage storage connected between the control connection of the electronic controller and a reference potential, and
a transformer with a primary winding coupled to the switching power supply, a secondary winding coupled to the controller, and an auxiliary winding for actuating the electronic control by the switching power supply.
7. The circuit of claim 6 , further comprising a rectifying diode and a resistor connected between the auxiliary winding and the control connection of the electronic controller.
8. The circuit of claim 6 , wherein the auxiliary winding is designed for a gate-to-source voltage.
9. The circuit of claim 1 , further comprising a switch for coupling the control connection to the reference potential.
10. The circuit of claim 9 , wherein the switch can be actuated by the controller.
11. The circuit of claim 1 , wherein the controller recognizes activation of the pushbutton.
12. A household appliance comprising:
a controller that controls processes of a household appliance;
a switching power supply that supplies current to the controller;
a pushbutton that couples the switching power supply to a supply grid;
an electronic controller connected parallel to the pushbutton that is actuable by the switching power supply by a control connection of the electronic controller; and
a voltage storage connected between the control connection of the electronic controller and a reference potential.
13. A method for operating a household appliance comprising:
supplying a current to a controller for controlling processes of the household appliance by a switching power supply;
coupling the switching power supply to a supply grid in response to activation of a pushbutton;
providing an electronic controller parallel to the pushbutton that is actuable by a the switching power supply by a control connection of the electronic controller; and
storing electrical voltage at the control connection by a voltage storage connected between the control connection of the electronic controller and a reference potential.
14. The method of claim 13 , wherein the electronic control element comprises a MOS-FET, and the control connection comprises a gate pole.
15. The method of claim 13 , further comprising:
providing a transformer with a primary winding coupled to the switching power supply and a secondary winding coupled to the controller; and
actuating the electronic controller by the switching power supply by the auxiliary winding of the transformer.
16. The method of claim 15 , wherein the auxiliary winding is designed for a gate-to-source voltage.
17. The method of claim 13 , further comprising coupling the control connection to a reference potential by means of a switch.
18. A household appliance comprising:
a controller that controls processes of a household appliance;
a switching power supply that supplies current to the controller;
a pushbutton that couples the switching power supply to a supply grid;
an electronic controller connected parallel to the pushbutton that is actuable by the switching power supply by a control connection;
a voltage storage connected between the control connection of the electronic controller and a reference potential, and
actuating the switch by the controller.
19. A household appliance comprising:
a controller that controls processes of a household appliance;
a switching power supply that supplies current to the controller;
a pushbutton that couples the switching power supply to a supply grid;
an electronic controller connected parallel to the pushbutton that is actuable by the switching power supply by a control connection;
a voltage storage connected between the control connection of the electronic controller and a reference potential, and
recognizing an activation of the pushbutton during operation of the household appliance by the controller.
20. An electrical circuit to operate a household appliance comprising:
a switching power supply that supplies current to the household appliance;
a pushbutton coupling the switching power supply to an external power source;
an electronic controller actuable by the switching power supply, wherein the switching power supply applies an actuating signal to a control connection of the electronic controller and the electronic controller and pushbutton are arranged in parallel, and a voltage storage connected to the control connection to apply an actuating signal to the electronic controller.
21. The circuit of claim 20 wherein the electronic controller comprises a MOS-FET, and the control connection comprises a gate pole to the MOS-FET.