-
1.发明授权公开(公告)号：US08436548B2
公开(公告)日：2013-05-07
申请号：US12788648
申请日：2010-05-27
IPC分类号： H05B41/36
CPC分类号： H05B33/0815 , H05B41/3924 , Y02B20/346
摘要： A conduction angle detection circuit, and systems and methods incorporating the same, is disclosed. The circuit includes a comparator having a first input and a second input, and configured to provide a pulse-width modulated output in response to comparison of signals at the first input with signals at the second input. The output has a pulse width representative of a dimmer setting of a dimmer circuit. The circuit also includes a limiting circuit coupled to the comparator and configured to receive a rectified voltage and to provide a voltage-limited output in response to the rectified voltage to the first input of the comparator. The circuit also includes a threshold supply circuit configured to provide a threshold voltage to the second input of the comparator, and a filter coupled to the comparator. The filter is configured to convert the pulse-width modulated output of the comparator to the dimmer reference level signal.
摘要翻译： 公开了导通角检测电路及其结合的系统和方法。 电路包括具有第一输入和第二输入的比较器，并且被配置为响应于第一输入处的信号与第二输入端的信号的比较来提供脉冲宽度调制输出。 输出具有表示调光电路的调光器设置的脉冲宽度。 电路还包括耦合到比较器并被配置为接收整流电压并且响应于对比较器的第一输入的整流电压而提供电压限制输出的限制电路。 该电路还包括阈值电源电路，其被配置为向比较器的第二输入提供阈值电压，以及耦合到比较器的滤波器。 滤波器被配置为将比较器的脉宽调制输出转换为调光参考电平信号。
-
2.发明申请公开(公告)号：US20120249150A1
公开(公告)日：2012-10-04
申请号：US13077151
申请日：2011-03-31
CPC分类号： H05B37/0263 , H05B41/40
摘要： A switch status detection circuit is provided, including three input terminals and a ground terminal. Two input terminals connect to a power supply via respective switches, receiving a respective voltage signal. The third connects to the power supply, receiving a neutral signal. A neutral synchronization circuit, between the third and the ground terminal, generates a positive pulsed current signal as a function of the neutral signal. Two capacitors, each with a respective first terminal connected to a corresponding input terminal, and a respective second terminal connected to the ground terminal, are charged by the current signal when the capacitor's corresponding switch is in an off state. Respective output terminals are coupled to each capacitor's first terminal to provide respective control signals, indicating the respective switch's state as a function of a voltage level across that capacitor. Each control signal has a logic level corresponding to its respective switch's state.
摘要翻译： 提供开关状态检测电路，包括三个输入端子和一个接地端子。 两个输入端通过相应的开关连接到电源，接收相应的电压信号。 第三个连接到电源，接收中性信号。 在第三和接地端子之间的中性同步电路产生作为中性信号的函数的正脉冲电流信号。 当电容器的相应开关处于断开状态时，两个电容器，每个具有连接到相应输入端子的相应第一端子和连接到接地端子的相应第二端子被充电。 相应的输出端耦合到每个电容器的第一端子以提供相应的控制信号，指示相应开关的状态作为跨过该电容器的电压电平的函数。 每个控制信号具有对应于其相应开关状态的逻辑电平。
-
3.发明授权公开(公告)号：US08410718B2
公开(公告)日：2013-04-02
申请号：US12788629
申请日：2010-05-27
IPC分类号： G05F1/00
CPC分类号： H05B39/08 , H05B41/295
摘要： A dimmer conduction angle detection circuit, and systems and methods incorporating the same, is disclosed. The circuit receives a gate drive signal from a PFC circuit and provides a dimmer reference level signal representative of a dimmer circuit's dimmer setting in response. The circuit includes a comparator with first and second inputs that provides a pulse-width modulated output in response to comparing signals received at the inputs. The pulse-width modulated output has a pulse width representative of the dimmer circuit's dimmer setting. The circuit also includes an input network, coupled to the comparator, to receive the gate drive signal and to provide an output, in response, to the comparator's first input. The circuit also includes a threshold supply circuit to provide a threshold voltage to the comparator's second input, and a filter, coupled to the comparator, to convert the comparator's pulse-width modulated output to the dimmer reference level signal.
摘要翻译： 公开了一种调光导通角检测电路及其结合的系统和方法。 该电路从PFC电路接收栅极驱动信号，并提供表示调光器电路调光器设置的调光参考电平信号。 电路包括具有第一和第二输入的比较器，其响应于在输入处接收的信号的比较而提供脉冲宽度调制的输出。 脉冲宽度调制输出具有代表调光器电路调光器设置的脉冲宽度。 该电路还包括耦合到比较器的输入网络，用于接收栅极驱动信号，并响应于该比较器的第一输入提供输出。 该电路还包括阈值电源电路以向比较器的第二输入端提供阈值电压，以及耦合到比较器的滤波器，以将比较器的脉宽调制输出转换为调光参考电平信号。
-
公开(公告)号：US20120206061A1
公开(公告)日：2012-08-16
申请号：US13024387
申请日：2011-02-10
IPC分类号： H05B37/02
CPC分类号： H05B41/42
摘要： A ballast to power a lamp includes two switches, each to selectively connect the ballast to respective high voltage terminals, each having two states (ON and OFF). The ballast also includes a converter circuit that provides a voltage to energize the lamp, and a detector circuit. The detector circuit includes two inputs, each coupled to a respective switch; two resistors, each coupled to a respective input; two outputs, each connected to the converter circuit; a transistor network; and a capacitor. One output provides the converter circuit with power, and is connected to the input via the resistors. The other provides the converter circuit with a control signal, indicating a voltage level so as to power the lamp to a particular light level, depending on the switches' states. The transistor network detects a differential voltage between the inputs, generating the control signal as a result. The capacitor smoothes the control signal.
摘要翻译： 用于为灯供电的镇流器包括两个开关，每个用于选择性地将镇流器连接到各自具有两个状态（ON和OFF）的高压端子。 镇流器还包括提供电压以激励灯的转换器电路和检测器电路。 检测器电路包括两个输入，每个输入耦合到相应的开关; 两个电阻器，每个电阻器耦合到相应的输入端; 两个输出，每个连接到转换器电路; 晶体管网络; 和电容器。 一个输出为转换器电路提供电源，并通过电阻连接到输入。 另一个为转换器电路提供控制信号，指示电压电平，以便根据开关状态将灯提供给特定的光级。 晶体管网络检测输入之间的差分电压，从而产生控制信号。 电容平滑控制信号。
-
5.发明申请公开(公告)号：US20110291592A1
公开(公告)日：2011-12-01
申请号：US12788648
申请日：2010-05-27
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B41/3924 , Y02B20/346
摘要： A conduction angle detection circuit, and systems and methods incorporating the same, is disclosed. The circuit includes a comparator having a first input and a second input, and configured to provide a pulse-width modulated output in response to comparison of signals at the first input with signals at the second input. The output has a pulse width representative of a dimmer setting of a dimmer circuit. The circuit also includes a limiting circuit coupled to the comparator and configured to receive a rectified voltage and to provide a voltage-limited output in response to the rectified voltage to the first input of the comparator. The circuit also includes a threshold supply circuit configured to provide a threshold voltage to the second input of the comparator, and a filter coupled to the comparator. The filter is configured to convert the pulse-width modulated output of the comparator to the dimmer reference level signal.
摘要翻译： 公开了导通角检测电路及其结合的系统和方法。 电路包括具有第一输入和第二输入的比较器，并且被配置为响应于第一输入处的信号与第二输入端的信号的比较来提供脉冲宽度调制输出。 输出具有表示调光电路的调光器设置的脉冲宽度。 电路还包括耦合到比较器并被配置为接收整流电压并且响应于对比较器的第一输入的整流电压而提供电压限制输出的限制电路。 该电路还包括阈值电源电路，其被配置为向比较器的第二输入提供阈值电压，以及耦合到比较器的滤波器。 滤波器被配置为将比较器的脉宽调制输出转换为调光参考电平信号。
-
公开(公告)号：US08358077B2
公开(公告)日：2013-01-22
申请号：US12894493
申请日：2010-09-30
CPC分类号： G01R19/22 , H02M2001/0009
摘要： A current sense rectifier circuit comprises an assembly input terminal for receiving a current input signal having an alternating current (AC) waveform. A negative half-wave circuit generates a first input signal representative of negative portions of the current input signal. A positive half-wave circuit generates a second input signal representative of positive portions of the current input signal. The negative and positive half-wave circuits each include a single diode and a resistance. A closed-loop amplifier has an inverting input terminal connected to the negative half-wave circuit, and a non-inverting input terminal connected to the positive half-wave circuit. The closed-loop amplifier inverts the first input signal and provides a DC voltage output signal via an output terminal that is a function of the inverted first input signal and the second input signal. An assembly output terminal is connected to the output terminal to receive the DC voltage output signal therefrom.
摘要翻译： 电流感测整流器电路包括用于接收具有交流（AC）波形的电流输入信号的组合输入端子。 负半波电路产生表示当前输入信号的负部分的第一输入信号。 正半波电路产生代表当前输入信号的正部分的第二输入信号。 负和正半波电路各自包括单个二极管和电阻。 闭环放大器具有连接到负半波电路的反相输入端子和连接到正半波电路的非反相输入端子。 闭环放大器反转第一输入信号，并通过作为反相第一输入信号和第二输入信号的函数的输出端提供直流电压输出信号。 组合输出端子连接到输出端子以从其接收直流电压输出信号。
-
公开(公告)号：US08319451B2
公开(公告)日：2012-11-27
申请号：US13024387
申请日：2011-02-10
IPC分类号： H05B37/02
CPC分类号： H05B41/42
摘要： A ballast to power a lamp includes two switches, each to selectively connect the ballast to respective high voltage terminals, each having two states (ON and OFF). The ballast also includes a converter circuit that provides a voltage to energize the lamp, and a detector circuit. The detector circuit includes two inputs, each coupled to a respective switch; two resistors, each coupled to a respective input; two outputs, each connected to the converter circuit; a transistor network; and a capacitor. One output provides the converter circuit with power, and is connected to the input via the resistors. The other provides the converter circuit with a control signal, indicating a voltage level so as to power the lamp to a particular light level, depending on the switches' states. The transistor network detects a differential voltage between the inputs, generating the control signal as a result. The capacitor smoothes the control signal.
摘要翻译： 用于为灯供电的镇流器包括两个开关，每个用于选择性地将镇流器连接到各自具有两个状态（ON和OFF）的高压端子。 镇流器还包括提供电压以激励灯的转换器电路和检测器电路。 检测器电路包括两个输入，每个输入耦合到相应的开关; 两个电阻器，每个电阻器耦合到相应的输入端; 两个输出，每个连接到转换器电路; 晶体管网络; 和电容器。 一个输出为转换器电路提供电源，并通过电阻连接到输入。 另一个为转换器电路提供控制信号，指示电压电平，以便根据开关状态将灯提供给特定的光级。 晶体管网络检测输入之间的差分电压，从而产生控制信号。 电容平滑控制信号。
-
8.发明申请公开(公告)号：US20110291577A1
公开(公告)日：2011-12-01
申请号：US12788629
申请日：2010-05-27
IPC分类号： H05B37/02
CPC分类号： H05B39/08 , H05B41/295
摘要： A dimmer conduction angle detection circuit, and systems and methods incorporating the same, is disclosed. The circuit receives a gate drive signal from a PFC circuit and provides a dimmer reference level signal representative of a dimmer circuit's dimmer setting in response. The circuit includes a comparator with first and second inputs that provides a pulse-width modulated output in response to comparing signals received at the inputs. The pulse-width modulated output has a pulse width representative of the dimmer circuit's dimmer setting. The circuit also includes an input network, coupled to the comparator, to receive the gate drive signal and to provide an output, in response, to the comparator's first input. The circuit also includes a threshold supply circuit to provide a threshold voltage to the comparator's second input, and a filter, coupled to the comparator, to convert the comparator's pulse-width modulated output to the dimmer reference level signal.
摘要翻译： 公开了一种调光导通角检测电路及其结合的系统和方法。 该电路从PFC电路接收栅极驱动信号，并提供表示调光器电路调光器设置的调光参考电平信号。 电路包括具有第一和第二输入的比较器，其响应于在输入处接收的信号的比较而提供脉冲宽度调制的输出。 脉冲宽度调制输出具有代表调光器电路调光器设置的脉冲宽度。 该电路还包括耦合到比较器的输入网络，用于接收栅极驱动信号，并响应于该比较器的第一输入提供输出。 电路还包括阈值电源电路，用于向比较器的第二输入端提供阈值电压，以及耦合到比较器的滤波器，将比较器的脉宽调制输出转换为调光参考电平信号。
-
公开(公告)号：US20120081027A1
公开(公告)日：2012-04-05
申请号：US12894493
申请日：2010-09-30
CPC分类号： G01R19/22 , H02M2001/0009
摘要： A current sense rectifier circuit comprises an assembly input terminal for receiving a current input signal having an alternating current (AC) waveform. A negative half-wave circuit generates a first input signal representative of negative portions of the current input signal. A positive half-wave circuit generates a second input signal representative of positive portions of the current input signal. The negative and positive half-wave circuits each include a single diode and a resistance. A closed-loop amplifier has an inverting input terminal connected to the negative half-wave circuit, and a non-inverting input terminal connected to the positive half-wave circuit. The closed-loop amplifier inverts the first input signal and provides a DC voltage output signal via an output terminal that is a function of the inverted first input signal and the second input signal. An assembly output terminal is connected to the output terminal to receive the DC voltage output signal therefrom.
摘要翻译： 电流感测整流器电路包括用于接收具有交流（AC）波形的电流输入信号的组合输入端子。 负半波电路产生表示当前输入信号的负部分的第一输入信号。 正半波电路产生代表当前输入信号的正部分的第二输入信号。 负和正半波电路各自包括单个二极管和电阻。 闭环放大器具有连接到负半波电路的反相输入端子和连接到正半波电路的非反相输入端子。 闭环放大器反转第一输入信号，并通过作为反相第一输入信号和第二输入信号的函数的输出端提供直流电压输出信号。 组合输出端子连接到输出端子以从其接收直流电压输出信号。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.011 秒)
