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公开(公告)号：US20240279961A1
公开(公告)日：2024-08-22
申请号：US18642886
申请日：2024-04-23
Applicant: Hanchett Entry Systems, Inc.
Inventor： Randall Shaffer , David Corbin
CPC classification number: E05B47/0001 , G07C9/00309 , H01F7/064 , E05B2047/0054 , E05B2047/0057 , E05B2047/0058 , E05B2047/0067 , E05B2047/0097 , G07C2009/00373 , G07C2009/00642
Abstract: A power control system for use with an electric lock mechanism including an actuator having a coil with a particular coil impedance. The power control system comprises a power supply configured to provide an output voltage having a drive current to the actuator, a credential device powered by the power supply and configured to signal the power supply to provide the output voltage upon receiving an authorized access code, an actuator driver including a multiple-gain current-sensing circuit, and a microcontroller configured to monitor and control the power supply, credential device, actuator driver, and actuator, and determine the impedance of the coil. The microcontroller is populated by a look-up table having performance data for a plurality of coils such that the microcontroller selects a duty ratio to establish the optimum magnitude of drive current to the coil based only on the determined impedance of the coil.
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公开(公告)号：US11993953B2
公开(公告)日：2024-05-28
申请号：US17036102
申请日：2020-09-29
Applicant: Hanchett Entry Systems, Inc.
Inventor： Randall Shaffer , David Corbin
CPC classification number: E05B47/0001 , G07C9/00309 , H01F7/064 , E05B2047/0054 , E05B2047/0057 , E05B2047/0058 , E05B2047/0067 , E05B2047/0097 , G07C2009/00373 , G07C2009/00642
Abstract: A power control system for use with an electric lock mechanism including an actuator having a coil with a particular coil impedance. The power control system comprises a power supply configured to provide an output voltage having a drive current to the actuator, a credential device powered by the power supply and configured to signal the power supply to provide the output voltage upon receiving an authorized access code, an actuator driver including a multiple-gain current-sensing circuit, and a microcontroller configured to monitor and control the power supply, credential device, actuator driver, and actuator, and determine the impedance of the coil. The microcontroller is populated by a look-up table having performance data for a plurality of coils such that the microcontroller selects a duty ratio to establish the optimum magnitude of drive current to the coil based only on the determined impedance of the coil.
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公开(公告)号：US20160307683A1
公开(公告)日：2016-10-20
申请号：US15098522
申请日：2016-04-14
Applicant: Hanchett Entry Systems, Inc.
Inventor： Brett L. Davis , Randall Shaffer
CPC classification number: E05B47/02 , H01F7/1805 , H01F2007/1888
Abstract: A constant-current controller that supplies a constant current to an inductive load. This controller comprises an electric control circuit module. The electric control circuit module comprises a primary switch and a secondary switch. During a time interval in which the primary switch is closed (ton), the secondary switch is open and the voltage across the inductive load is equal to the source voltage (Vs). At time ton until the end of a time interval (T), zero volts appears across the inductive load. During this interval, current continues to flow as supplied by the energy stored in the inductance. The periodic current in the inductive load becomes constant with a sufficiently large PWM switching frequency and is dependent upon the parameters of the control circuit and the duration of ton.
Abstract translation: 一个恒定电流控制器，向感性负载提供恒定电流。 该控制器包括电控电路模块。 电气控制电路模块包括主开关和次开关。 在初级开关闭合（ton）的时间间隔内，二次开关断开，感应负载两端的电压等于源电压（Vs）。 在时间吨直到时间间隔（T）结束时，电感负载上出现零伏特。 在此间隔期间，电流由存储在电感中的能量提供而继续流动。 电感负载中的周期性电流变得恒定，具有足够大的PWM开关频率，并且取决于控制电路的参数和ton的持续时间。
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公开(公告)号：US12191076B2
公开(公告)日：2025-01-07
申请号：US18424154
申请日：2024-01-26
Applicant: Hanchett Entry Systems, Inc.
Inventor： Randall Shaffer
Abstract: A latch system includes a releasably secured latch or keeper and a solenoid assembly. The solenoid assembly has a solenoid driver coupled to a power supply, a switching circuit connected with the solenoid driver, and a function generator to selectively adjust a frequency of a pick current output from the power supply and provided to the solenoid driver. The frequency is adjusted until the pick current induces a resulting vibration of said latch system sufficient to free a preloaded latch or keeper. The adjusted frequency may be a target frequency or a range of frequencies. Also included may be a preload sensor. When a preload is sensed, the frequency may be adjusted by the function generator until the pick current induces a resulting vibration of said latch system sufficient to free a preloaded latch or keeper.
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公开(公告)号：US11915869B2
公开(公告)日：2024-02-27
申请号：US17881690
申请日：2022-08-05
Applicant: Hanchett Entry Systems, Inc.
Inventor： Randall Shaffer
CPC classification number: H01F7/18 , H01F7/064 , H02M3/335 , H02M3/33523
Abstract: A latch system includes a releasably secured latch or keeper and a solenoid assembly. The solenoid assembly has a solenoid driver coupled to a power supply, a switching circuit connected with the solenoid driver, and a function generator to selectively adjust a frequency of a pick current output from the power supply and provided to the solenoid driver. The frequency is adjusted until the pick current induces a resulting vibration of said latch system sufficient to free a preloaded latch or keeper. The adjusted frequency may be a target frequency or a range of frequencies. Also included may be a preload sensor. When a preload is sensed, the frequency may be adjusted by the function generator until the pick current induces a resulting vibration of said latch system sufficient to free a preloaded latch or keeper.
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Patent Agency Ranking
公开(公告)号：US11203890B2
公开(公告)日：2021-12-21
申请号：US15097571
申请日：2016-04-13
Applicant: Hanchett Entry Systems, Inc.
Inventor： Brett L. Davis , Randall Shaffer
Abstract: An energizable electromagnet of a door locking system is affixed to the door or the door frame for electromagnetically attracting an armature affixed to the other. A power control circuit is configured to selectively energize the electromagnet using a pulse-width modulated current cycle wherein two levels of magnetic force may be selectively applied to the system. A door position sensor is configured to provide a first communication signal to the power control circuit when the door is in a closed position. A second communication signal is provided when the door is not in the closed position. The electromagnet is energized at the lower level of magnetic force when the power control circuit receives the first communication signal and at the higher level of magnetic force only when an unauthorized attempt to open the door is initiated.
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公开(公告)号：US20210043351A1
公开(公告)日：2021-02-11
申请号：US17078135
申请日：2020-10-23
Applicant: Hanchett Entry Systems, Inc.
Inventor： Randall Shaffer , Brett L. Davis
Abstract: A constant-current controller that supplies a constant-current to a solenoid driver for use with an electromechanical device. The controller comprises a PCB containing a constant-current control circuit. The circuit comprises a GaNFET primary switch and a secondary switch. The PCB is integrated with and made a part of the solenoid driver. A standard electromechanical device may be converted to a constant-current controlled electromechanical device by exchanging the solenoid driver.
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公开(公告)号：US20170226784A1
公开(公告)日：2017-08-10
申请号：US15097571
申请日：2016-04-13
Applicant: Hanchett Entry Systems, Inc.
Inventor： Brett L. Davis , Randall Shaffer
CPC classification number: E05C19/166 , E05B47/00 , E05B2047/0068 , G07C9/00174 , G07C2009/00634
Abstract: An energizable electromagnet of a door locking system is affixed to the door or the door frame for electromagnetically attracting an armature affixed to the other. A power control circuit is configured to selectively energize the electromagnet using a pulse-width modulated current cycle wherein two levels of magnetic force may be selectively applied to the system. A door position sensor is configured to provide a first communication signal to the power control circuit when the door is in a closed position. A second communication signal is provided when the door is not in the closed position. The electromagnet is energized at the lower level of magnetic force when the power control circuit receives the first communication signal and at the higher level of magnetic force only when an unauthorized attempt to open the door is initiated.
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公开(公告)号：US20160307681A1
公开(公告)日：2016-10-20
申请号：US15098484
申请日：2016-04-14
Applicant: Hanchett Entry Systems, Inc.
Inventor： Randall Shaffer , David Corbin
Abstract: A power control system for use with an electric lock mechanism having an actuator comprises a power supply to output an output voltage to the actuator. A credential device signals the power supply to output the voltage upon receiving an authorized code. A microcontroller controls the power supply, the credential device, and the actuator and may operate in an Access Mode or a Dog Mode. When in Access Mode, the actuator is unpowered and the credential device is powered until an authorized code is received and the power supply powers the actuator. The Dog Mode has an awake mode where the actuator is powered and the credential device is unpowered after the actuator remains in the powered state for a length of time. A sleep mode has the actuator unpowered and the credential device powered until an authorized code is received and the power supply powers the actuator.
Abstract translation: 一种与具有致动器的电锁机构一起使用的电力控制系统包括用于向致动器输出输出电压的电源。 凭证设备在接收到授权代码时通知电源以输出电压。 微控制器控制电源，凭证设备和执行器，并且可以以访问模式或狗模式操作。 当处于访问模式时，执行器无动力，凭证设备被供电，直到接收到授权代码并且电源为执行器供电。 狗模式具有唤醒模式，其中致动器被供电，并且在致动器保持处于供电状态一段时间之后，凭证装置不起动。 休眠模式使执行器无动力，凭证设备供电，直到接收到授权代码，并且电源为执行器供电。
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公开(公告)号：US20220384076A1
公开(公告)日：2022-12-01
申请号：US17881690
申请日：2022-08-05
Applicant: Hanchett Entry Systems, Inc.
Inventor： Randall Shaffer
Abstract: A latch system includes a releasably secured latch or keeper and a solenoid assembly. The solenoid assembly has a solenoid driver coupled to a power supply, a switching circuit connected with the solenoid driver, and a function generator to selectively adjust a frequency of a pick current output from the power supply and provided to the solenoid driver. The frequency is adjusted until the pick current induces a resulting vibration of said latch system sufficient to free a preloaded latch or keeper. The adjusted frequency may be a target frequency or a range of frequencies. Also included may be a preload sensor. When a preload is sensed, the frequency may be adjusted by the function generator until the pick current induces a resulting vibration of said latch system sufficient to free a preloaded latch or keeper.
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