公开(公告)号：US06472861B2

公开(公告)日：2002-10-29

申请号：US09861776

申请日：2001-05-21

Applicant: Chi-MIng Chen ,  Pi-Fen Chen

Inventor： Chi-MIng Chen ,  Pi-Fen Chen

IPC: G01R1900

CPC classification number: G01R19/04

Abstract: A peak detector comprising of a comparator, an input-trigger device, a gate-width control block, an AND gate, a first current source, a second current source, a first switch, a second switch and a capacitor. The peak detector of this invention uses simple circuits to obtain low frequency energy attenuation. The low frequency attenuation can be programmed and hence able to find the actual average voltage peak. In addition, the simple design makes the peak detector of this invention a suitable replacement candidate for the complicated analogue-to-digital converter conventionally used for detecting average energy attenuation after passing through an electric cable. The peak detector can also be used to measure voltage attenuation for signals passing through LAN, transmission medium such as cable or twisted pair or other related products.

Abstract translation: 峰值检测器，包括比较器，输入触发器件，栅极宽度控制块，与门，第一电流源，第二电流源，第一开关，第二开关和电容器。 本发明的峰值检测器使用简单的电路来获得低频能量衰减。 可以编程低频衰减，因此可以找到实际的平均电压峰值。 此外，简单的设计使得本发明的峰值检测器成为常规用于检测通过电缆之后的平均能量衰减的复杂模拟 - 数字转换器的合适的替代候选。 峰值检测器还可用于测量通过LAN，传输介质（如电缆或双绞线或其他相关产品）的信号的电压衰减。

公开(公告)号：US20130113415A1

公开(公告)日：2013-05-09

申请号：US13610909

申请日：2012-09-12

Applicant: Pi-Fen Chen ,  Chih-Yuan Hsu ,  Hung-I Wang

Inventor： Pi-Fen Chen ,  Chih-Yuan Hsu ,  Hung-I Wang

IPC: H02J7/00

CPC classification number: H02J7/0068 ,  B08B3/022 ,  B08B13/00 ,  B65D19/385 ,  F26B3/08 ,  F26B3/0923 ,  H02J7/0081 ,  H02J2007/0096

Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.

Abstract translation: 提供了一种用于执行充电端口检测控制的方法和装置，其中该方法应用于电子设备，电子设备的通信端口具有从用于电子设备的外部电源获得电力的功能， 电子设备的路径切换单元布置成控制电子设备内的系统与电子设备的电池之间的电连接。 该方法可以包括以下步骤：执行充电端口检测; 并根据充电端口检测进行控制操作。 例如，该方法可以包括：根据充电端口检测来控制功率路径切换单元具有不同的配置，以便对具有不同充电简档的电池进行充电; 并且在充电期间检测从恒定电流模式切换到恒定电压模式的系统电压电平。

公开(公告)号：US07449865B2

公开(公告)日：2008-11-11

申请号：US10904775

申请日：2004-11-29

Applicant: Ying-Chung Wang ,  Pi-Fen Chen

Inventor： Ying-Chung Wang ,  Pi-Fen Chen

IPC: H02J7/16 ,  H02J7/06

CPC classification number: H02J7/0072 ,  H02J7/0029

Abstract: The present invention provides a battery charger and a method for preventing both an overshoot charging current and an overcharged battery voltage during a mode transition. The battery charger includes a charging regulation circuit having an input terminal, an output terminal, and a control terminal, in which the charging regulation circuit outputs a charging current whose amount is regulated based on a first regulation signal at the control terminal. The battery charger also includes an operational amplifier having a positive input terminal, a negative input terminal, and an output terminal for generating the first regulation signal; The battery charger contains a first switch unit and a second switch unit for controlling current flow in the battery charger.

Abstract translation: 本发明提供了一种电池充电器和在模式转换期间既防止过冲充电电流又产生过充电电池电压的方法。 电池充电器包括具有输入端子，输出端子和控制端子的充电调节电路，其中充电调节电路基于控制端子处的第一调节信号输出其量被调节的充电电流。 电池充电器还包括具有正输入端的运算放大器，负输入端和用于产生第一调节信号的输出端; 电池充电器包括用于控制电池充电器中的电流的第一开关单元和第二开关单元。

公开(公告)号：US07405539B2

公开(公告)日：2008-07-29

申请号：US10904772

申请日：2004-11-29

Applicant: Pi-Fen Chen

Inventor： Pi-Fen Chen

IPC: H02J7/04 ,  H02J7/06

CPC classification number: H02J7/0072

Abstract: The present invention provides a battery charger and a method for preventing an overshoot charging current during a mode transition. The battery charger includes a charging regulation circuit for outputting a charging current whose amount is regulated based on a regulation signal at a control terminal, a first current sensing unit for sensing a current level and outputting an error signal based on both the current level and a first reference signal, an operational amplifier for generating the regulation signal, and a reference voltage generator which includes an ADC for converting the error signal outputted by the current sensing unit to a digital signal, and a DAC for converting the digital signal to a reference voltage.

Abstract translation: 本发明提供一种电池充电器和在模式转换期间防止过冲充电电流的方法。 电池充电器包括：充电调节电路，用于根据控制端的调节信号输出其量被调节的充电电流;第一电流感测单元，用于感测电流电平，并输出基于电流电平和 第一参考信号，用于产生调节信号的运算放大器和参考电压发生器，其包括用于将由电流感测单元输出的误差信号转换为数字信号的ADC，以及用于将数字信号转换为参考电压的DAC 。

公开(公告)号：US20060113966A1

公开(公告)日：2006-06-01

申请号：US10904772

申请日：2004-11-29

Applicant: Pi-Fen Chen

Inventor： Pi-Fen Chen

IPC: H02J7/00

CPC classification number: H02J7/0072

Abstract: The present invention provides a battery charger and a method for preventing an overshoot charging current during a mode transition. The battery charger includes a charging regulation circuit for outputting a charging current whose amount is regulated based on a regulation signal at a control terminal, a first current sensing unit for sensing a current level and outputting an error signal based on both the current level and a first reference signal, an operational amplifier for generating the regulation signal, and a reference voltage generator which includes an ADC for converting the error signal outputted by the current sensing unit to a digital signal, and a DAC for converting the digital signal to a reference voltage.

Abstract translation: 本发明提供一种电池充电器和在模式转换期间防止过冲充电电流的方法。 电池充电器包括：充电调节电路，用于根据控制端的调节信号输出其量被调节的充电电流;第一电流感测单元，用于感测电流电平，并输出基于电流电平和 第一参考信号，用于产生调节信号的运算放大器和参考电压发生器，其包括用于将由电流感测单元输出的误差信号转换为数字信号的ADC，以及用于将数字信号转换为参考电压的DAC 。

公开(公告)号：US06642703B2

公开(公告)日：2003-11-04

申请号：US10247750

申请日：2002-09-18

Applicant: Chi-Ming Chen ,  Pi-Fen Chen

Inventor： Chi-Ming Chen ,  Pi-Fen Chen

IPC: G01R1900

CPC classification number: G01R19/04

Abstract: The invention provides a peak detector having input signal triggering control and low frequency energy attenuation capability. The peak detector includes a charging unit and a discharging unit. By being triggered by a peak value detected in a received input signal by comparing voltage potential levels of the output signal of the peak detector and the received signal, the charging unit charges an electrical charge storage unit, for example, a capacitor, connected to the output terminal of the peak detector for a pre-determined charge duration in accordance with a charge pulse being in a logic high. After the pre-determined charge duration of charging operation, before being triggered by a next peak value of the received input signal, the discharging unit discharges the electrical charge storage unit for a pre-determined discharge duration in accordance with a discharge pulse being in a logic high or in accordance with a plurality of discharge pulses, which is determined by design desired.

Abstract translation: 本发明提供一种具有输入信号触发控制和低频能量衰减能力的峰值检测器。 峰值检测器包括充电单元和放电单元。 通过将峰值检测器的输出信号的电压电平与接收信号进行比较，通过在接收到的输入信号中检测到的峰值触发来触发，充电单元对连接到所述峰值检测器的电荷存储单元例如电容器进行充电 根据充电脉冲处于逻辑高电平的预定电荷持续时间，峰值检测器的输出端子。 在充电操作的预定充电持续时间之后，在由所接收的输入信号的下一个峰值触发之前，放电单元根据放电脉冲放电到预定的放电持续时间 逻辑高或根据由所需设计确定的多个放电脉冲。

公开(公告)号：US09142982B2

公开(公告)日：2015-09-22

申请号：US13610903

申请日：2012-09-12

Applicant: Pi-Fen Chen ,  Chieh-Wei Liao

Inventor： Pi-Fen Chen ,  Chieh-Wei Liao

IPC: H02J7/00

CPC classification number: H02J7/0036 ,  H02J7/0021 ,  H02J7/0057 ,  H02J2007/0062 ,  H02J2007/0096

Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, and a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device. The method may include the steps of: detecting whether an output voltage level of a battery of the electronic device reaches a predetermined threshold value; and control operation(s) according to whether the output voltage level reaches the predetermined threshold value. For example, the method may include: when it is detected that the output voltage level is less than the predetermined threshold value, pre-charging the battery with a predetermined pre-charging current level to make the output voltage level reach the predetermined threshold value, and then controlling a detection path switching unit to electrically connect data terminal(s) of the communication port to a charging port detection circuit.

Abstract translation: 提供一种用于执行充电端口检测控制的方法和装置，其中所述方法应用于电子设备，并且电子设备的通信端口具有从用于电子设备的外部电源获得电力的功能。 该方法可以包括以下步骤：检测电子设备的电池的输出电压电平是否达到预定阈值; 以及根据输出电压电平是否达到预定阈值的控制操作。 例如，该方法可以包括：当检测到输出电压电平小于预定阈值时，以预定的预充电电流电流对电池进行预充电以使输出电压电平达到预定阈值， 然后控制检测路径切换单元将通信端口的数据终端电连接到充电端口检测电路。

公开(公告)号：US07609094B2

公开(公告)日：2009-10-27

申请号：US11766351

申请日：2007-06-21

Applicant: Pi Fen Chen

Inventor： Pi Fen Chen

IPC: H03K5/22

CPC classification number: H03K19/017509

Abstract: An input circuit comprising a level-determining unit and an output unit is provided. In a first period controlled by a first enable signal, the level-determining unit receives an input signal at an input terminal of the input circuit and determines a voltage level of the input signal. The output unit is coupled to the input terminal. In the first period, the output unit outputs the input signal with the determined voltage level at an output terminal of the input circuit to serve as an output signal. In a second period following the first period, the output unit latches the determined voltage level of the input signal according to a second enable signal and outputs the input signal with the determined voltage level at the output terminal to serve as the output signal.

Abstract translation: 提供了包括电平确定单元和输出单元的输入电路。 在由第一使能信号控制的第一时段中，电平确定单元在输入电路的输入端接收输入信号，并确定输入信号的电压电平。 输出单元耦合到输入端。 在第一时段中，输出单元输出在输入电路的输出端具有确定电压电平的输入信号，以作为输出信号。 在第一周期之后的第二时段中，输出单元根据第二使能信号锁定所确定的输入信号的电压电平，并将输出端子处的确定电压电平的输入信号输出，作为输出信号。

公开(公告)号：US20080007294A1

公开(公告)日：2008-01-10

申请号：US11766351

申请日：2007-06-21

Applicant: Pi Fen Chen

Inventor： Pi Fen Chen

IPC: H03K19/00

CPC classification number: H03K19/017509

Abstract: An input circuit comprising a level-determining unit and an output unit is provided. In a first period controlled by a first enable signal, the level-determining unit receives an input signal at an input terminal of the input circuit and determines a voltage level of the input signal. The output unit is coupled to the input terminal. In the first period, the output unit outputs the input signal with the determined voltage level at an output terminal of the input circuit to serve as an output signal. In a second period following the first period, the output unit latches the determined voltage level of the input signal according to a second enable signal and outputs the input signal with the determined voltage level at the output terminal to serve as the output signal.

Abstract translation: 提供了包括电平确定单元和输出单元的输入电路。 在由第一使能信号控制的第一时段中，电平确定单元在输入电路的输入端接收输入信号，并确定输入信号的电压电平。 输出单元耦合到输入端。 在第一时段中，输出单元输出在输入电路的输出端具有确定电压电平的输入信号，以作为输出信号。 在第一周期之后的第二时段中，输出单元根据第二使能信号锁定所确定的输入信号的电压电平，并将输出端子处的确定电压电平的输入信号输出，作为输出信号。