发明名称 |
Method and apparatus for pulse width modulation |
摘要 |
An apparatus and method of providing a pulse width modulated signal that is responsive to a current are disclosed. A circuit according to aspects of the present invention includes a capacitor to convert a first current to a first voltage on the capacitor during a first time duration and to discharge a second current from the capacitor to change the first voltage to a second voltage during a second time duration. A comparator is also included and is coupled to an output of the capacitor to compare a voltage on the capacitor to a reference voltage during the second time duration to change a pulse width of a periodic output signal in response to an input current. |
申请公布号 |
US8138810(B2) |
申请公布日期 |
2012.03.20 |
申请号 |
US20100976316 |
申请日期 |
2010.12.22 |
申请人 |
WANG ZHAO-JUN;POWER INTEGRATIONS, INC. |
发明人 |
WANG ZHAO-JUN |
分类号 |
H03K3/017 |
主分类号 |
H03K3/017 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|