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21. 发明授权

US06774710B2 High precision charge pump regulation 有权
标题翻译：高精度电荷泵调节
公开(公告)号：US06774710B2
公开(公告)日：2004-08-10
申请号：US10672823
申请日：2003-09-25
申请人： Bo Li
发明人： Bo Li
IPC分类号： G05F110
CPC分类号： H02M3/073 , H02M2001/0032 , H02M2001/0041 , Y02B70/16
摘要： A method for high precision charge pump regulation. The method of one embodiment comprises comparing an output feedback voltage with a reference voltage to determine whether the output feedback voltage is greater than or less than the reference voltage. In response to the comparison, either increasing a frequency for a clock signal if the output feedback voltage is less than the reference voltage, decreasing the frequency for the clock signal if the output feedback voltage is greater than the reference voltage; or disabling the clock signal if the output feedback voltage is much greater than the reference voltage. A pumped voltage is generated in response to changes to the clock signal.
摘要翻译：一种高精度电荷泵调节方法。一个实施例的方法包括将输出反馈电压与参考电压进行比较，以确定输出反馈电压是否大于或小于参考电压。响应于比较，如果输出反馈电压小于参考电压，则增加时钟信号的频率，如果输出反馈电压大于参考电压，则降低时钟信号的频率; 或者如果输出反馈电压远大于参考电压，则禁止时钟信号。响应于时钟信号的变化产生泵浦电压。

22. 发明授权

US06774709B2 Voltage regulator for a charge pump circuit 有权
标题翻译：电荷泵电路的电压调节器
公开(公告)号：US06774709B2
公开(公告)日：2004-08-10
申请号：US10379416
申请日：2003-03-04
申请人： Enrico Castaldo , Antonino Conte
发明人： Enrico Castaldo , Antonino Conte
IPC分类号： G05F110
CPC分类号： H02M3/073 , H02M2001/0032 , H02M2001/0041 , Y02B70/16
摘要： A circuit for regulating an output voltage of a charge pump includes a regulator connected to an output of the charge pump. The regulator includes a voltage divider for dividing the output voltage. A filter has a first input for receiving the divided output voltage, a second input for receiving a control signal, and an output for providing a filtered divided output voltage. A comparator has a first input for receiving the divided output voltage, a second input for receiving a reference voltage, a third input for receiving the filtered divided output voltage, and an output for providing a digital signal based upon a comparison of the divided output signal, the reference voltage and the filtered divided output voltage. A logic control circuit has a first input for receiving a clock signal, a second input for receiving the digital signal from the comparator, and an output for providing a timing signal. A phase generator circuit has an input for receiving the timing signal from the logic control circuit for generating control phases for the charge pump.
摘要翻译：用于调节电荷泵的输出电压的电路包括连接到电荷泵的输出的调节器。调节器包括用于分压输出电压的分压器。滤波器具有用于接收分压输出电压的第一输入端，用于接收控制信号的第二输入端和用于提供经滤波的分压输出电压的输出端。比较器具有用于接收分压输出电压的第一输入端，用于接收参考电压的第二输入端，用于接收经滤波的分压输出电压的第三输入端和用于根据分压输出信号的比较提供数字信号的输出端，参考电压和滤波后的分频输出电压。逻辑控制电路具有用于接收时钟信号的第一输入端，用于从比较器接收数字信号的第二输入端和用于提供定时信号的输出端。相位发生器电路具有用于接收来自逻辑控制电路的定时信号用于产生电荷泵的控制相位的输入端。

23. 发明申请

US20030016565A1 Devices, circuits and methods for dual voltage generation using single charge pump 失效
公开(公告)号：US20030016565A1
公开(公告)日：2003-01-23
申请号：US10096345
申请日：2002-03-12
发明人： Seong-Jin Jang , Young-hyun Jun
IPC分类号： G11C005/00
CPC分类号： H02M3/07 , G11C5/145 , H02M2001/0041 , H02M2001/009 , H02M2003/071
摘要： Devices, circuits and methods for dual voltage generation using a single charge pump. The dual voltages can be the same or different, as they are for two different components of a device. An oscillator generates an oscillating signal, and a charge pump generates a pumping voltage at a pumping node responsive to the oscillating signal. A first switching circuit is coupled to the pumping node, and outputs from the pumping voltage a first voltage to the first component. A second switching circuit is coupled to the pumping node, and outputs from the pumping voltage a second voltage to the second component. The first and second output voltages may optionally be sensed. The oscillator may be triggered and the first and second switching circuits may be controlled as needed to maintain the sensed first and second voltages at desired values and/or ranges.

24. 发明授权

US06486728B2 Multi-stage charge pump 有权
标题翻译：多级电荷泵
公开(公告)号：US06486728B2
公开(公告)日：2002-11-26
申请号：US09809878
申请日：2001-03-16
申请人： Bendik Kleveland
发明人： Bendik Kleveland
IPC分类号： G05F302
CPC分类号： H02M3/073 , H02M2001/0041
摘要： An integrated voltage source includes a charge pump having multiple charge pump stages connected in series. A first one of the these charge pump stages is connected to the high voltage output of the charge pump, and the remaining charge pump stages are coupled to this first charge pump stage in a manner such that substantially all the charge pumped by all of the additional charge pump stages is also pumped by the first charge pump stage. In one mode of operation, the first charge pump stage and at least one additional charge pump stage are enabled. In another mode of operation, the first charge pump stage and at least two additional charge pump stages are enabled. A control circuit determines the mode of operation and, therefore, the number of charge pump stages that are enabled.
摘要翻译：集成电压源包括具有串联连接的多个电荷泵级的电荷泵。这些电荷泵级中的第一级连接到电荷泵的高电压输出，并且剩余的电荷泵级以这样的方式耦合到该第一电荷泵级，使得基本上所有的电荷被所有额外的电荷泵级也由第一电荷泵级泵送。在一种操作模式中，启用第一电荷泵级和至少一个额外的电荷泵级。在另一种操作模式中，启用第一电荷泵级和至少两个额外的电荷泵级。控制电路确定操作模式，因此确定启用的电荷泵级数。

25. 发明申请

US20020126512A1 DC-DC converter, power supply circuit, method for controlling DC-DC converter, and method for controlling power supply circuit 有权
标题翻译： DC-DC转换器，电源电路，DC-DC转换器控制方法及控制电源电路的方法
公开(公告)号：US20020126512A1
公开(公告)日：2002-09-12
申请号：US10087852
申请日：2002-03-05
申请人： FUJITSU LIMITED
发明人： Shinichi Nakagawa , Hidenobu Ito
IPC分类号： G05F001/40
CPC分类号： H02M1/36 , H02M3/156 , H02M2001/0032 , H02M2001/0041 , Y02B70/16
摘要： A DC-DC converter for decreasing power consumption and quickly increasing an output voltage. The converter includes a voltage generation circuit, a switching control circuit, a current detection circuit, and a step control circuit. An output transistor performs switching to generate the output voltage of the switching control circuit. The current detection circuit is connected to the voltage generation circuit to detect a load current, which is derived from the output voltage, and to generate a detection signal. A stop control circuit maintains the output transistor in an activated state in accordance with the detection signal and stops the operation of the switching control circuit when the load current is less than or equal to the load current.
摘要翻译：一种用于降低功耗并快速增加输出电压的DC-DC转换器。转换器包括电压产生电路，开关控制电路，电流检测电路和步进控制电路。输出晶体管进行切换以产生开关控制电路的输出电压。电流检测电路连接到电压产生电路，以检测从输出电压导出的负载电流，并产生检测信号。停止控制电路根据检测信号将输出晶体管保持在激活状态，并且当负载电流小于或等于负载电流时停止开关控制电路的操作。

26. 发明申请

US20020074975A1 SWITCHING DC-TO-DC CONVERTER WITH DISCONTINUOUS PULSE SKIPPING AND CONTINUOUS OPERATING MODES WITHOUT EXTERNAL SENSE RESISTOR 有权
公开(公告)号：US20020074975A1
公开(公告)日：2002-06-20
申请号：US09738609
申请日：2000-12-14
发明人： Barry James Culpepper , Hidehiko Suzuki
IPC分类号： G05F001/10
CPC分类号： H02M3/156 , H02M3/1588 , H02M2001/0032 , H02M2001/0041 , Y02B70/1466 , Y02B70/16
摘要： A switching DC-to-DC converter having at least one power channel including an inductor and a controller which generates at least one power switch control signal for at least one power switch of each power channel. The converter is configured to operate in a continuous mode when the inductor current remains above zero, to enter a discontinuous pulse skipping mode of operation when the inductor current falls to zero (which occurs when the load current is below a threshold value), and to leave the discontinuous pulse skipping mode and resume continuous mode operation when the inductor current rises above zero. The main difference between the continuous and discontinuous pulse skipping modes is that in the continuous mode, a power switch has a duty cycle determined by a feedback signal indicative of the converter's output potential Vout (so that the duty cycle is independent of the current drawn from the converter by the load), and in the discontinuous pulse skipping mode the power switch has a duty cycle which is the longer of a minimum duty cycle and a discontinuous (non-pulse-skipping) mode duty cycle. The discontinuous pulse skipping mode is more efficient than the continuous mode under conditions of low load current. Preferably, the controller includes cycle-skipping circuitry operable in the discontinuous pulse skipping mode and optionally also the continuous mode to cause the power switch to remain off for at least one cycle under the condition that the converter's output potential rises above a threshold. Preferably, the cycle-skipping circuitry includes a comparator which compares an error amplifier output (indicative of the converter output potential) with a threshold potential, and logic circuitry (e.g., an AND gate coupled to the comparator output) which asserts a latch-clearing signal once per switching cycle when the comparator output indicates that the converter's output has risen above the threshold. Other aspects of the invention are a switching controller for use in such a converter and a method for generating power switch control signals for such a converter in a discontinuous pulse skipping mode of operation.

27. 发明申请

US20020060559A1 DC-DC converter 有权
标题翻译： DC-DC转换器
公开(公告)号：US20020060559A1
公开(公告)日：2002-05-23
申请号：US09988471
申请日：2001-11-20
发明人： Kiyotaka Umemoto
IPC分类号： G05F001/40
CPC分类号： H02M3/156 , H02M2001/0041
摘要： A DC-DC converter supplied with a power from a DC power source having a predetermined power source voltage, for controlling an output voltage of the DC-DC converter such that the output voltage becomes an aimed output voltage, by switching a transistor with a pulse having a predetermined width when the output voltage is lower than the aimed output voltage and stopping the switching operation of the transistor when the output voltage exceeds the aimed output voltage, comprises a variable duty cycle pulse generator circuit for generating a pulse having duty cycle determined by a ratio of the power source voltage to the aimed output voltage, a switch circuit for outputting the pulse as a switching pulse of the transistor when the switch circuit is turned ON and a control circuit for turning the switch circuit ON when the output voltage is lower than the aimed outut voltage.
摘要翻译：一种DC-DC转换器，其具有来自具有预定电源电压的DC电源的电力，用于通过用脉冲开关晶体管来控制DC-DC转换器的输出电压使得输出电压变为目标输出电压当输出电压低于目标输出电压时具有预定的宽度，并且当输出电压超过目标输出电压时停止晶体管的开关操作，包括可变占空比脉冲发生器电路，用于产生具有由电源电压与目标输出电压的比例;当开关电路导通时，用于输出脉冲作为晶体管的开关脉冲的开关电路，以及当输出电压较低时将开关电路接通的控制电路比目标电压。

28. 发明申请

US20020008501A1 Switching power converter with gated pulse generator 审中-公开
标题翻译：具有门控脉冲发生器的开关电源转换器
公开(公告)号：US20020008501A1
公开(公告)日：2002-01-24
申请号：US09849778
申请日：2001-05-04
申请人： iWatt
发明人： Mark D. Telefus , Arthur J. Collmeyer , Dickson T. Wong , David B. Manner
IPC分类号： G05F001/40
CPC分类号： H02M3/156 , H02M2001/0032 , H02M2001/0041 , Y02B70/16
摘要： A switching power converter wherein a controller determines whether cycles of a drive signal to a power switch define pulses of power at a load.
摘要翻译：一种开关电源转换器，其中控制器确定驱动信号到功率开关的周期是否在负载处定义功率脉冲。

29. 发明申请

US20190081560A1 TWO DIMENSIONAL CHARGE PUMP 审中-公开
公开(公告)号：US20190081560A1
公开(公告)日：2019-03-14
申请号：US16102925
申请日：2018-08-14
申请人： Khalifa University of Science and Technology
发明人： Abdulqader Nael Mahmoud , Mohammad Radwan Alhawari , Baker Mohammad , Hani Hasan Mustafa Saleh , Mohammed Ismail Elnaggar
IPC分类号： H02M3/07
CPC分类号： H02M3/07 , H02M2001/0041 , H02M2001/009 , H02M2003/077 , H03L7/0891 , H03L7/0895
摘要： A two dimensional charge pump and control circuitry is disclosed. The two dimensional charge pump includes a group of parallel-coupled charge pumps coupled between a DC power source and a first output connection node via a corresponding group of charge pump connection nodes. The group of parallel-coupled charge pumps has a corresponding group of clock connection nodes. Each of the group of parallel-coupled charge pumps includes a corresponding group of series capacitive elements coupled between a corresponding one of the group of charge pump connection nodes and a corresponding one of the group of clock connection nodes.

30. 发明申请

US20190020276A1 SWITCHING REGULATOR 审中-公开
公开(公告)号：US20190020276A1
公开(公告)日：2019-01-17
申请号：US16032338
申请日：2018-07-11
申请人： ABLIC Inc.
发明人： Kosuke TAKADA
IPC分类号： H02M3/156 , H02M1/36
CPC分类号： H02M3/156 , G05F1/10 , G05F1/46 , G05F1/595 , H02M1/36 , H02M3/158 , H02M2001/0025 , H02M2001/0032 , H02M2001/0041
摘要： A switching regulator includes: an error amplification circuit configured to amplify a difference between a voltage based on the output voltage and a first reference voltage to output an error voltage; a PFM comparison circuit configured to compare the error voltage with a second reference voltage to output a comparison result signal at a first level or a second level, an offset being given to the error voltage for a given period in response to a change of the comparison result signal from the second level to the first level; an oscillation circuit configured to output a clock signal of a given frequency according to the first level of the comparison result signal, and to stop outputting the clock signal according to the second level of the comparison result signal; and a PWM conversion circuit configured to turn the switching element on at a prescribed pulse width.

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