发明名称 |
Offline converter with integrated softstart and frequency jitter |
摘要 |
A pulse width modulated switch comprises a first terminal, a second terminal, and a switch that allows a signal to be transmitted between the first terminal and the second terminal according to a drive signal provided at a control input. The pulse width modulated switch also comprises a frequency variation circuit that provides a frequency variation signal and an oscillator that provides an oscillation signal having a frequency of that varies within a frequency range according to the frequency variation signal. The oscillator further provides a maximum duty cycle signal comprising a first state and a second state. The pulse width modulated switch further comprises a drive circuit that provides the drive signal when the maximum duty cycle signal is in the first state and a magnitude of the oscillation signal is below a variable threshold level.
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申请公布号 |
US6107851(A) |
申请公布日期 |
2000.08.22 |
申请号 |
US19980080774 |
申请日期 |
1998.05.18 |
申请人 |
POWER INTEGRATIONS, INC. |
发明人 |
BALAKIRSHNAN, BALU;DJENGUERIAN, ALEX;LUND, LEIF |
分类号 |
H03K3/0231;H03K7/08;(IPC1-7):H03K3/017 |
主分类号 |
H03K3/0231 |
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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