发明名称 |
BALANCED AUXILIARY ON TIME GENERATOR FOR MULTIPHASE STACKABLE CONSTANT ON TIME CONTROL ARCHITECTURE |
摘要 |
A control circuit configured to control a switching power supply including a ramp generator configured to generate a triangular waveform. A comparator is configured to generate a series of pulse width modulated (PWM) pulses at a first frequency and to regulate the switching power supply. The ramp generator includes a capacitor, a charging current source configured to provide a charging current to charge the capacitor, and a discharging current source configured to provide a discharging current to discharge the capacitor. The ramp generator also includes a closed loop current balancing current source configured to balance the currents from the charging and discharging current sources to establish a substantially zero direct current (DC) bias across the capacitor. The controller also includes a multi-phase configuration to provide a stackable multi-channel architecture. |
申请公布号 |
US2014097881(A1) |
申请公布日期 |
2014.04.10 |
申请号 |
US201314051346 |
申请日期 |
2013.10.10 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
LYNCH BRIAN THOMAS;KHAYAT JOSEPH MAURICE;WIKTOR STEFAN WLODZIMIERZ |
分类号 |
H03K5/08 |
主分类号 |
H03K5/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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