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1. 发明公开

US20230205240A1 CONTROL CIRCUIT WITH ENERGY REGULATION FOR VOLTAGE REGULATORS AND CONTROL METHOD THEREOF 审中-公开
公开(公告)号：US20230205240A1
公开(公告)日：2023-06-29
申请号：US18170757
申请日：2023-02-17
申请人： Chengdu Monolithic Power Systems Co., Ltd.
发明人： Wangmiao Hu , Fangyu Zhang , Lijie Jiang , Chao Liu , Chiahsin Chang , Jinghai Zhou
IPC分类号： G05F1/46 , G05F1/567 , H02M3/156
CPC分类号： G05F1/468 , G05F1/567 , H02M3/156
摘要： A control circuit for a voltage regulator has an energy regulation circuit and a switching control circuit. The energy regulation circuit provides a regulation signal based on an output voltage, an output current, and a maximum energy reference. The maximum energy reference decreases with increasing of an ambient temperature and increases with decreasing of the ambient temperature. The switching control circuit provides a switching control signal based on the regulation signal to turn ON and turn OFF at least one switch of a plurality of switches of the voltage regulator, such that the output voltage and the output current satisfy a first relationship when the ambient temperature equals a first temperature value, and the output voltage and the output current satisfy a second relationship when the ambient temperature equals a second temperature value.

2. 发明申请

US20150270773A1 CONTROL CIRCUIT FOR MULTIPHASE SWITCHING CONVERTER TO REDUCE OVERSHOOT AND ASSOCIATED CONTROL METHOD 有权
标题翻译：用于多相切换转换器的控制电路，以减少海洋和相关控制方法
公开(公告)号：US20150270773A1
公开(公告)日：2015-09-24
申请号：US14667630
申请日：2015-03-24
申请人： Chengdu Monolithic Power Systems Co., Ltd.
发明人： Lijie Jiang , Xiaokang Wu , Suhua Luo , Qian Ouyang , Jinghai Zhou
IPC分类号： H02M3/04
CPC分类号： H02M3/1584 , H02M1/32 , H02M2003/1586
摘要： A multiphase switching converter having a plurality of switching circuits and a control circuit, the plurality of switching circuits provide an output voltage, the control circuit provides a plurality of switching control signals to turn ON the plurality of switching circuits successively based on the output voltage and a reference signal, when the output voltage is detected overshooting, the control circuit turns OFF a current switching circuit, and when the output voltage is detected recovering from overshooting, the control circuit turns ON the current switching circuit again for a first time period until a sum of the first time period and a second time period achieves a predetermined value, wherein the second time period is a time period the current switching circuit maintains ON uninterruptedly before the output voltage is detected overshooting.
摘要翻译：一种具有多个开关电路和控制电路的多相开关转换器，所述多个开关电路提供输出电压，所述控制电路提供多个开关控制信号，以基于所述输出电压依次接通所述多个开关电路;以及参考信号，当输出电压被检测到超调时，控制电路关断电流开关电路，当检测到输出电压从过冲恢复时，控制电路再次接通电流开关电路第一时间段，直到第一时间段和第二时间段的和达到预定值，其中第二时间段是在检测到超调输出电压之前，电流开关电路不间断地保持导通的时间段。

3. 发明申请

US20160172959A1 MULTI-RAIL SWITCHING CONVERTER, CONTROL CIRCUIT AND ASSOCIATED CONTROL METHOD 有权
标题翻译：多路开关变换器，控制电路及相关控制方法
公开(公告)号：US20160172959A1
公开(公告)日：2016-06-16
申请号：US14970457
申请日：2015-12-15
申请人： Chengdu Monolithic Power Systems Co., Ltd.
发明人： Wangmiao Hu , Lijie Jiang , Wenbin Lu , Qian Ouyang , Jinghai Zhou , Eric Yang
IPC分类号： H02M1/084
CPC分类号： H02M1/084 , H02M3/156 , H02M2001/008
摘要： A multi-rail switching converter providing a plurality of output voltages has a master switching circuit, a plurality of slave switching circuits and a control circuit. The control circuit has an interleaving control circuit, the interleaving control circuit judges a phase zone of a corresponding slave switching circuit based on a switching control signal of the master switching circuit and a set signal of the corresponding slave switching circuit, and adjusts a turn-ON moment of the corresponding slave switching circuit based on the phase zone of the corresponding slave switching circuit.
摘要翻译：提供多个输出电压的多轨开关转换器具有主开关电路，多个从开关电路和控制电路。控制电路具有交错控制电路，交错控制电路基于主开关电路的切换控制信号和对应的从动切换电路的设定信号，判定相应的从动切换电路的相位区域，基于相应从属切换电路的相位区的相应从动切换电路的ON时刻。

4. 发明申请

US20140071720A1 VOLTAGE CONVERTER AND ASSOCIATED OVER-VOLTAGE PROTECTION METHOD 审中-公开
标题翻译：电压转换器及相关的过压保护方法
公开(公告)号：US20140071720A1
公开(公告)日：2014-03-13
申请号：US14024574
申请日：2013-09-11
申请人： Chengdu Monolithic Power Systems Co., Ltd.
发明人： Qian Ouyang , Eric Yang , Jinghai Zhou , Jijian Sun
IPC分类号： H02M1/32
CPC分类号： H02M1/32 , H02H7/1213 , H02M3/158
摘要： A voltage converter includes: an input terminal receiving an input voltage; an output terminal providing an output voltage; a switching circuit having a main switch configured to regulate the output voltage, wherein a control end of the main switch is configured to receive a Pulse Width Modulation (PWM) signal, and the output voltage is controlled according to the duty cycle of the PWM signal; and a protection switch coupled between the input terminal and the switching circuit, and wherein when the output voltage is higher than a reference voltage, the protection switch is turned OFF.
摘要翻译：电压转换器包括：输入端子，其接收输入电压; 提供输出电压的输出端子; 开关电路，其具有被配置为调节输出电压的主开关，其中主开关的控制端被配置为接收脉宽调制（PWM）信号，并且根据PWM信号的占空比来控制输出电压 ; 以及耦合在所述输入端子和所述开关电路之间的保护开关，并且其中当所述输出电压高于参考电压时，所述保护开关被断开。

5. 发明公开

US20230336082A1 INTEGRATED CIRCUIT CONTROL DEVICE FOR MULTI-PHASE SWITCHING CONVERTERS AND CONTROL METHOD THEREOF 审中-公开
公开(公告)号：US20230336082A1
公开(公告)日：2023-10-19
申请号：US18298187
申请日：2023-04-10
申请人： Chengdu Monolithic Power Systems Co., Ltd.
发明人： Huichun Dai , Wangmiao Hu , Fangyu Zhang , Keke Zhao , Lijie Jiang , Jinghai Zhou
IPC分类号： H02M3/158
CPC分类号： H02M3/1586
摘要： An integrated circuit (IC) control device for a multi-phase switching converter having a master phase and at least one slave phase, has a first ON-time control circuit to provide a first ON-time control signal and at least one slave ON-time control circuit. Each slave ON-time control circuit has a closed-loop gainer to provide a gain by executing proportional integral to a difference between a master phase temperature and a slave phase temperature, a multiplier to provide a current feedback signal by multiplying a slave current signal with the gain, a bias circuit to provide a bias by executing proportional integral to a difference between a master phase current and the current feedback signal, and an adder to provide a corresponding slave ON-time control signal by adding the first ON-time control signal to a bias ON-time control signal provided by a bias ON-time generator based the bias.

6. 发明授权

US09941781B2 Multi-rail switching converter, control circuit and associated control method 有权
公开(公告)号：US09941781B2
公开(公告)日：2018-04-10
申请号：US14970457
申请日：2015-12-15
申请人： Chengdu Monolithic Power Systems Co., Ltd.
发明人： Wangmiao Hu , Lijie Jiang , Wenbin Lu , Qian Ouyang , Jinghai Zhou , Eric Yang
IPC分类号： H02J3/14 , H02M1/084 , H02M3/156 , H02M1/00
CPC分类号： H02M1/084 , H02M3/156 , H02M2001/008
摘要： A multi-rail switching converter providing a plurality of output voltages has a master switching circuit, a plurality of slave switching circuits and a control circuit. The control circuit has an interleaving control circuit, the interleaving control circuit judges a phase zone of a corresponding slave switching circuit based on a switching control signal of the master switching circuit and a set signal of the corresponding slave switching circuit, and adjusts a turn-ON moment of the corresponding slave switching circuit based on the phase zone of the corresponding slave switching circuit.

7. 发明授权

US09660534B2 Control circuit for multiphase switching converter to reduce overshoot and associated control method 有权
公开(公告)号：US09660534B2
公开(公告)日：2017-05-23
申请号：US14667630
申请日：2015-03-24
申请人： Chengdu Monolithic Power Systems Co., Ltd.
发明人： Lijie Jiang , Xiaokang Wu , Suhua Luo , Qian Ouyang , Jinghai Zhou
IPC分类号： H02M3/158 , H02M1/32
CPC分类号： H02M3/1584 , H02M1/32 , H02M2003/1586
摘要： A multiphase switching converter having a plurality of switching circuits and a control circuit, the plurality of switching circuits provide an output voltage, the control circuit provides a plurality of switching control signals to turn ON the plurality of switching circuits successively based on the output voltage and a reference signal, when the output voltage is detected overshooting, the control circuit turns OFF a current switching circuit, and when the output voltage is detected recovering from overshooting, the control circuit turns ON the current switching circuit again for a first time period until a sum of the first time period and a second time period achieves a predetermined value, wherein the second time period is a time period the current switching circuit maintains ON uninterruptedly before the output voltage is detected overshooting.

8. 发明公开

US20230318452A1 CONTROL CIRCUIT WITH PEAK CURRENT LIMIT FOR SWITCHING CONVERTERS AND CONTROL METHOD THEREOF 审中-公开
公开(公告)号：US20230318452A1
公开(公告)日：2023-10-05
申请号：US18325365
申请日：2023-05-30
申请人： Chengdu Monolithic Power Systems Co., Ltd.
发明人： Wangmiao Hu , Lijie Jiang , Chiahsin Chang , Jinghai Zhou
IPC分类号： H02M1/00 , H02M3/156
CPC分类号： H02M3/156 , H02M1/0009
摘要： A control circuit for a switching converter has a valley current limiting circuit, a peak current limiting circuit, an ON time control circuit, and a switching control circuit. The valley current limiting circuit provides a valley current comparison signal by comparing a current sense signal with a first current threshold. The current sense signal is representative of a current flowing through a switching circuit of the switching converter. The peak current limiting circuit provides a peak current comparison signal based on the valley current comparison signal, a switching control signal, and a second current threshold. The ON time control circuit provides an ON time control signal based on the switching control signal. The switching control circuit provides the switching control signal based on the voltage comparison signal, the valley current comparison signal, the peak current comparison signal, and the ON time control signal to control the switching circuit.

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