发明名称 |
Boiler control comprising analog up/down timer circuit for generating variable threshold signal |
摘要 |
An apparatus comprises a sensor circuit configured to detect activation of at least one circulator arranged to circulate liquid from a boiler through at least one circulation loop and back to the boiler. An analog up/down timer circuit has an input coupled to an output of the sensor circuit and generates a variable threshold signal that varies as a function of an activation time of the at least one circulator. A burner control circuit receives the variable threshold signal from the analog up/down timer circuit and generates an ignition control signal based at least in part on comparison of a temperature sensor signal of the boiler with the variable threshold signal. An ignition driver receives the ignition control signal from the burner control circuit and generates an ignition signal for a burner configured to burn fuel to heat the liquid in the boiler based at least in part on the ignition control signal. |
申请公布号 |
US9631838(B2) |
申请公布日期 |
2017.04.25 |
申请号 |
US201615017054 |
申请日期 |
2016.02.05 |
申请人 |
Kanner Martin |
发明人 |
Kanner Martin;Bauman Arthur |
分类号 |
H04L25/02;F24H9/20;F24H9/12;H03K5/08;H03K3/0231 |
主分类号 |
H04L25/02 |
代理机构 |
Ryan, Mason & Lewis, LLP |
代理人 |
Ryan, Mason & Lewis, LLP |
主权项 |
1. An apparatus comprising:
a sensor circuit configured to detect activation of at least one circulator arranged to circulate liquid from a boiler through at least one circulation loop and back to the boiler; an analog up/down timer circuit having an input coupled to an output of the sensor circuit and configured to generate a variable threshold signal that varies as a function of an activation time of said at least one circulator; a burner control circuit configured to receive the variable threshold signal from the analog up/down timer circuit and to generate an ignition control signal based at least in part on comparison of a temperature sensor signal of the boiler with the variable threshold signal; and an ignition driver configured to receive the ignition control signal from the burner control circuit and to generate an ignition signal for a burner configured to burn fuel to heat the liquid in the boiler based at least in part on the ignition control signal; wherein said at least one circulator comprises a plurality of circulators; and wherein the analog up/down timer circuit is configured to generate the variable threshold signal at least in part by being configured: to charge a charge storage element in a charge mode of operation for a period of time for which at least one of the plurality of circulators is activated; and to discharge the charge storage element in a discharge mode of operation for a period of time for which none of the plurality of circulators is activated. |
地址 |
Plainview NY US |