 技術摘要： |
在交錯式功因修正器中，控制裝置驅動第一轉換電路及第二轉換電路，使得功因修正器產生一輸出電壓(VO)，且包含分別用以產生第一驅動訊號(Q_master)及第二驅動訊號(Q_slave)的第一控制模組及第二控制模組，該第一驅動訊號(Q_master)及第二驅動訊號(Q_slave)分別根據第一控制訊號及第二控制訊號控制第一轉換電路及第二轉換電路中功率開關的運作。相位調變模組根據反相第一驅動訊號(Qn_master)、由第一控制模組所輸出的回授補償訊號(Vcomp)及由第二控制模組所輸出的重置訊號(S_syn)而產生重置訊號(S_PTCL)。當重置訊號(S_syn,S_PTCL)其中之一為一預設準位時，第二驅動訊號(Q_slave)則會為一個將第二轉換電路中功率開關切換至關閉狀態的準位。
In an interleaving power factor corrector, a control device interleavingly drives first and second converting circuits such that the power factor corrector generates a voltage output (Vo), and includes first and second control modules generating respectively first and second driving signals (Q_master, Q_slave) that correspond respectively to first and second control signals for controlling operations of power switches of the first and second converting circuits. A phase modulating module generates a reset signal (S_PTCL) based on an inverted first driving signal (Qn_master) and a feedback compensation signal (Vcomp) outputted by the first control module, and a reset signal (S_syn) outputted by the second control module. When one of the reset signals (S_syn, S_PTCL) has a predetermined level, the second driving signal (Q_slave) has a level for switching the power switch of the second converting circuit to an OFF-mode.
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