ELECTRONIC DEVICE FOR CONTROLLING HIGH-VOLTAGE WITH MULTIPLE LOW-VOLTAGE SWITCHES

• US 20160379771A1
• Filed: 06/29/2015
• Published: 12/29/2016
• Est. Priority Date: 06/29/2015
• Status: Active Grant

• Current Assignee: Tao Liu
• Original Assignee: Tao Liu
• Inventors: Liu, Tao
• Granted Patent: US 9,953,774 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 13/385 for adaptation of a particular data processing system to different peripheral devices
• CPC Class Codes: G06F 13/4081 Live connection to bus, e.g. hot-plugging current or voltage limitation during live insertion H02H9/004
• CPC Class Codes: H01H 9/54 Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
• CPC Class Codes: H03K 17/725 for ac voltages or currents H03K17/722, H03K17/735 take precedence

Abstract

An electronic device is disclosed for controlling a high-voltage power source with multiple low-voltage switches. The electronic device includes a low-voltage DC power supply that allows for low-voltage wiring and components to be used to control the high-voltage power source using multiple low-voltage switches. The electronic device includes a single pulse generator that generates a pulse signal upon activation of any one of the multiple switches. The pulse signal activates a bistable circuit controller that is coupled the a high-voltage electronic switch to control high-voltage power to the load.

Claims

1. An electronic device for coupling a high-voltage alternating current (AC) source to a load using a plurality of low-voltage switches, the device comprising:

a low-voltage direct current (DC) power supply circuit coupled to the high-voltage AC source;

a single pulse generator, an input of the single pulse generator coupled to the plurality of low-voltage switches to generate a pulse upon activation of any one of the plurality of low-voltage switches;

a bistable circuit controller coupled to the single pulse generator, the bistable circuit controller toggling between an on-state and an off-state upon receiving the pulse from the single pulse generator; and

a high-voltage electronic switch coupled to the bistable circuit controller, the high-voltage electronic switch connecting the high-voltage source to the load when the bistable circuit controller is in the on-state and disconnecting the high-voltage source from the load when the bistable circuit controller is in the off-state.

2. The electronic device of claim 1 wherein the single pulse generator is coupled to the plurality of low-voltage switches using a low-voltage wire gauge, and wherein the load is coupled to the high-voltage AC source using a high-voltage wire gauge.

3. The electronic device of claim 1 wherein the plurality of low-voltage switches couple a low-voltage from the low-voltage DC power supply circuit to the single pulse generator.

4. The electronic device of claim 3 wherein the plurality of low-voltage switches are biased momentary push buttons.

5. The electronic device of claim 1 wherein the single pulse generator is a monostable flip-flop circuit.

6. The electronic device of claim 1 wherein the bistable circuit controller is a bistable flip-flop circuit.

7. The electronic device of claim 1 wherein the single pulse generator and bistable circuit controller are implemented in separate integrated circuit packages.

8. The electronic device of claim 1 wherein the single pulse generator and bistable circuit controller are implemented by a microcontroller.

9. The electronic device of claim 1 wherein the high-voltage source is a 120 VAC residential power supply.

10. The electronic device of claim 1 wherein the low-voltage DC power supply circuit comprises a rectifier circuit, a filter, and a regulator.

11. The electronic device of claim 1 wherein a high-voltage electronic switch is a TRIAC.