发明授权
- 专利标题： Power source circuit for generating positive and negative voltage sources
- 专利标题（中）： 用于产生正负电压源的电源电路
-
申请号： US243550申请日： 1999-02-03
-
公开(公告)号： US06084387A公开(公告)日： 2000-07-04
- 发明人: Masaki Kaneko , Hiroyuki Kobatake , Masakazu Amanai , Kazuaki Kato , Satoru Oku
- 申请人： Masaki Kaneko , Hiroyuki Kobatake , Masakazu Amanai , Kazuaki Kato , Satoru Oku
- 申请人地址： JPX Tokyo
- 专利权人： NEC Corporation
- 当前专利权人： NEC Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX10-022006 19980203
- 主分类号： G11C16/06
- IPC分类号： G11C16/06 ; G05F1/56 ; G11C16/30 ; H02M3/07 ; G05F1/40
摘要：
A power source circuit for a flash memory includes a positive circuit section for generating a positive voltage source, a source follower transistor for converting the impedance of the first voltage source, a negative circuit section for generating a negative voltage source while maintaining a voltage difference between the output of the source follower transistor and the negative voltage source at a first reference potential. The positive circuit section includes a voltage compensating transistor having a threshold voltage equal to the threshold of the source follower transistor.