发明名称 |
Current zero crossing detecting circuit |
摘要 |
The present invention relates a current zero crossing detecting circuit including a PWM driving half bridge circuit, which generates an output signal (OUT) and a signal synchronous with the high impedance condition of said PWM driving half bridge circuit. Said inventive circuit has the characteristic of comprising detecting means (DFLIP, COMP) synchronous with said signal synchronous with the high impedance condition of said PWM driving half bridge circuit and said output signal (OUT), and said detecting means generating a direction signal (DIR_COR) showing the current direction flowing in said pulse width modulation circuit.
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申请公布号 |
US6421258(B1) |
申请公布日期 |
2002.07.16 |
申请号 |
US20010947201 |
申请日期 |
2001.09.04 |
申请人 |
STMICROELECTRONICS, S.R.L. |
发明人 |
SOLDAVINI FRANCESCO CHRAPPAN;FONTANELLA LUCA |
分类号 |
H02M1/08;H02M3/158;H02P6/18;H03K5/1536;(IPC1-7):H02H7/122 |
主分类号 |
H02M1/08 |
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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