公开(公告)号：US5708256A

公开(公告)日：1998-01-13

申请号：US573948

申请日：1995-12-18

申请人： James G. Montagnino ,  Ronald Lerner ,  John Polonchak ,  Robert Sherwood

发明人： James G. Montagnino ,  Ronald Lerner ,  John Polonchak ,  Robert Sherwood

IPC分类号： G05D23/24 ,  H05B1/02

CPC分类号： G05D23/24 ,  G05D23/1913

摘要： A heating pad controller is provided which varies the duty cycle during which power is applied to a heating pad heating element. In one embodiment according to the present invention, an oscillator circuit is used to vary the off-time of the duty cycle, with the on-time portion being fixed. User control of the off-time is provided by way of a rotary control knob connected to a potentiometer. The potentiometer is part of the oscillator circuit and is used to vary the resistance through which a capacitor in the oscillator circuit charges up. The output of the oscillator circuit is used to control the gate of a silicon controlled rectifier (SCR), which acts as a power switch through which power is applied to the heating element. During power up, the oscillator circuit is overridden and a continuous control signal is applied to the SCR to provide constant power to the heating element to thereby achieve rapid heating. In an alternative embodiment according to the present invention, a digital heating pad controller is provided to vary the duty cycle during which power is applied to a heating pad heating element. User control is provided by way of a number of switches which are used to select one of a number of operating temperatures. Additionally, when the heating pad is first turned on or when the desired temperature setting is increased, continuous power, i.e., 100% duty cycle operation, is initiated in order to rapidly heat the heating pad to the desired temperature. Similarly, when the desired temperature setting is decreased, no power is applied to the heating element, i.e., 0% duty cycle operation.

摘要翻译： 提供一种加热垫控制器，其改变对加热垫加热元件施加电力的占空比。 在根据本发明的一个实施例中，使用振荡器电路来改变占空比的关闭时间，导通时间部分是固定的。 关闭时间的用户控制通过连接到电位器的旋转控制旋钮来提供。 电位器是振荡器电路的一部分，用于改变振荡器电路中的电容充电的电阻。 振荡器电路的输出用于控制可控硅整流器（SCR）的栅极，该可控硅整流器（SCR）用作电力开关，通过该电源开关向加热元件施加电力。 在上电期间，振荡器电路被覆盖，并且将连续的控制信号施加到SCR以向加热元件提供恒定的功率，从而实现快速加热。 在根据本发明的替代实施例中，提供数字加热焊盘控制器以改变对加热垫加热元件施加电力的占空比。 用户控制通过用于选择多个工作温度之一的多个开关来提供。 此外，当加热垫首先打开或者当期望的温度设置增加时，启动连续功率，即100％的占空比操作，以便将加热垫快速加热至期望的温度。 类似地，当期望的温度设置降低时，不向加热元件施加功率，即0％的占空比操作。

公开(公告)号：US20060061493A1

公开(公告)日：2006-03-23

申请号：US10946788

申请日：2004-09-22

申请人： Lee Larson ,  Ronald Lerner

发明人： Lee Larson ,  Ronald Lerner

IPC分类号： H03M7/00

CPC分类号： H03M7/165

摘要： In plurality of series-coupled circuit boards, a thermometer code is used to provide the address signals for the circuit board. Each terminal of the circuit board input connector is coupled next successive terminal of the circuit board output connector. The terminals of the circuit board input connectors are coupled, through a pull-up resistor, to a voltage source. The least significant terminal of the output terminal can provide a logic signal opposite to the logic signal provided by the voltage source. The address lines for the circuit board are coupled to the terminals of the input connector. In this manner a thermometer address code can be provided for the sequence of series-coupled circuit boards. According to the present invention, the thermometer codes can be expanded with selected additional apparatus.

摘要翻译： 在多个串联电路板中，使用温度计代码为电路板提供地址信号。 电路板输入连接器的每个端子连接在电路板输出连接器的下一个连续的端子上。 电路板输入连接器的端子通过上拉电阻耦合到电压源。 输出端子的最低有效端子可以提供与由电压源提供的逻辑信号相反的逻辑信号。 电路板的地址线耦合到输入连接器的端子。 以这种方式，可以为串联电路板的顺序提供温度计地址代码。 根据本发明，可以使用所选择的附加装置来扩展温度计代码。

公开(公告)号：US20060129374A1

公开(公告)日：2006-06-15

申请号：US11012840

申请日：2004-12-15

申请人： Lee Larson ,  Ronald Lerner ,  Roger Strane

发明人： Lee Larson ,  Ronald Lerner ,  Roger Strane

IPC分类号： G06F9/455

CPC分类号： G06F11/261

摘要： An emulation unit/target processor interface apparatus senses the target processor I/O voltages using filters to reduce the noise level and provides the rest of the interface apparatus with a target reference voltage level. The reference voltage is used to create threshold voltages, termination voltages and drive levels appropriate to provide an interface with the target processor. Power loss in the target processor is also detected so that drive signals can be removed from the target processor to avoid damaging the target processor and to prevent the target processor from being energized by the emulation unit.

摘要翻译： 仿真单元/目标处理器接口装置使用滤波器来感测目标处理器I / O电压以降低噪声电平并向接口装置的其余部分提供目标参考电压电平。 参考电压用于创建适合于提供与目标处理器的接口的阈值电压，终端电压和驱动电平。 还检测目标处理器中的功率损耗，使得可以从目标处理器移除驱动信号，以避免损坏目标处理器并防止目标处理器被仿真单元激励。