Pulse solenoid control circuit

Patent metadata

Field	Value
Publication number	US-9786458-B2
Application number	US-201514644364-A
Country	US
Kind code	B2
Filing date	Mar 11, 2015
Priority date	Mar 17, 2014
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

Disclosed herein is a device comprising a pulse trigger switch module configured to generate a first control signal in response to a first input signal value and generate the second control signal in response to a second input signal value. An on pulse generator module provides a first pulse signal having a first predetermined pulse duration in response to the first control signal and an off pulse generator module provides a second pulse signal having a second predetermined pulse duration in response to the second control signal. An on pulse switch module connects a power signal to an output in response to the first pulse signal and an off pulse switch module connects the power signal to the output in response to the second pulse signal.

First claim

What is claimed is:

1. A device, comprising:
a pulse trigger switch module configured to generate a first control signal in response to a first input signal value and generate a second control signal in response to a second input signal value;
an on pulse generator module configured to provide a first pulse signal having a first predetermined pulse duration in response to the first control signal;
an off pulse generator module configured to provide a second pulse signal having a second predetermined pulse duration in response to the second control signal;
an on pulse switch module configured to connect a power signal to an output in response to the first pulse signal; and
an off pulse switch module configured to connect the power signal to the output in response to the second pulse signal, wherein the off pulse switch module is further configured to override an output signal from the on pulse switch module when the off pulse switch module is activated.

2. The device of claim 1 , further comprising a switch control module configured to receive an input signal having at least the first input signal value or the second input signal value, the switch control module configured to generate a switch control signal based on the input signal, the switch control module further configured to transmit the switch control signal to the pulse trigger switch module.

3. The device of claim 2 , wherein the pulse trigger switch module comprises a first switch configured to generate the first control signal in response to the input signal being turned on and further configured generate the second control signal in response to the input signal being turned off.

4. The device of claim 3 , wherein the input signal is an alternating current (AC) signal; and
wherein the first control signal is a direct current (DC) signal.

5. The device of claim 2 , wherein the on pulse generator module comprises a first timer generating the first pulse signal, wherein the first predetermined pulse duration is independent of a duration of the first control signal; and
wherein the off pulse generator module comprises a second timer generating the second pulse signal, wherein the second predetermined pulse duration is independent of a duration of the second control signal.

6. The device of claim 5 , further comprising:
first circuitry disposed at the first timer and configured to adjust the first predetermined pulse duration; and
second circuitry disposed at the second timer and configured to adjust the second predetermined pulse duration.

7. The device of claim 1 , wherein an output of the on pulse switch module is connected through normally closed contacts at the off pulse switch module.

8. The device of claim 1 , wherein the on pulse switch module provides a first output pulse having a first polarity;
wherein the first output pulse is provided to the output by connecting the power signal to the output for a first predetermined period of time;
wherein the off pulse switch module provides a second output pulse having a second polarity to the output;
wherein the second output pulse is provided by connecting the power signal to the output for a second predetermined period of time; and
wherein the first polarity is different from the second polarity.

9. A device, comprising:
a first switch configured to provide a first control signal in response to a first input signal value and provide a second control signal in response to a second input value;
a first timer connected to the first switch and configured to generate a first pulse signal in response to the first control signal;
a second timer connected to the first switch and configured to generate a second pulse signal in response to the second control signal;
a first relay connected to the first timer, the first relay configured to connect a power supply to an output during the first pulse signal, wherein the first relay provides a first output pulse to the output by connecting the power supply to the output for a predetermined period of time; and
a second relay connected to the second timer, the second relay configured to connect the power supply to the output during the second pulse signal, wherein the second relay provides a second output pulse to the output by connecting the power supply to the output in a reversal polarity arrangement for a second predetermined period of time.

10. The device of claim 9 , further comprising:
a switch control module configured to receive an input signal and generate a switch control signal that causes the first switch to provide the first and second control signals based on a value of the input signal.

11. The device of claim 10 , wherein the input signal is an alternating current (AC) signal; and
wherein the switch control signal is a direct current (DC) signal.

12. The device of claim 9 , wherein the first timer generates the first pulse signal with a first duration independent of a duration of the first control signal; and
wherein the second timer generates the second pulse signal with a second duration independent of a duration of the second control signal.

13. The device of claim 9 , further comprising a load connected to the output, the load configured to latch on in response to the first output pulse and further configured to latch on in response to the second output pulse.

14. The device of claim 9 , wherein an output of the second relay is connected through normally closed contacts at the first relay; and
wherein the first relay is configured to override an output pulse signal from the output of the second relay when the first relay is activated.

15. A method of controlling an electrically latching load, comprising:
receiving a switch control signal at a pulse trigger switch module;
providing, with the pulse trigger switch module, an on input signal to an on pulse generator module when the switch control signal is in an on state;
providing, with the pulse trigger switch module, an off input signal to an off pulse generator module when the switch control signal is in an off state;
generating an on pulse control signal with the on pulse generator module in response to the on input signal, the on pulse control signal having a first pulse duration of a first predetermined period;
generating an off pulse control signal with the off pulse generator module in response to the off input signal, the off pulse control signal having a second pulse duration of a second predetermined period;
providing an output on pulse to an output with an on pulse switch module by connecting a first power supply signal to the output in response to the on pulse control signal; and
providing an output off pulse to the output with an off pulse switch module by connecting a second power supply signal to the output in response to the off pulse control signal, wherein the off pulse switch module is configured to override the output on pulse when the off pulse switch module is activated.

16. The method of claim 15 , wherein the output on pulse has a polarity different than the output off pulse.

17. The method of claim 16 , further comprising:
activating a load with the output on pulse; and
deactivating the load with the output off pulse.

18. The method of claim 15 , wherein a duration of the output on pulse is different than a duration of the on input signal.

19. The method of claim 15 , wherein the providing an output on pulse comprises providing the output on pulse to the output through the off pulse switch module.

20. The method of claim 15 , wherein the

Assignees

• Wcm Ind Inc

Inventors

• Parker Phil A

Classifications

• H01H47/226 Primary

  for bistable relays · CPC title

• H01F7/1872

  Bistable or bidirectional current devices (relays H01H47/226) · CPC title