JPS5498948A - Initial set up method - Google Patents

Initial set up method

Info

Publication number
JPS5498948A
JPS5498948A JP634978A JP634978A JPS5498948A JP S5498948 A JPS5498948 A JP S5498948A JP 634978 A JP634978 A JP 634978A JP 634978 A JP634978 A JP 634978A JP S5498948 A JPS5498948 A JP S5498948A
Authority
JP
Japan
Prior art keywords
capacitor
voltage
initial set
charging
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP634978A
Other languages
Japanese (ja)
Inventor
Shinichi Miyake
Akio Murayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP634978A priority Critical patent/JPS5498948A/en
Publication of JPS5498948A publication Critical patent/JPS5498948A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To minimize the fluctuation of an initial set up time and to reduce the size of a capacitor by adding the initial build up voltage of the power source to a level shift circuit to delay the charging of the capacitor.
CONSTITUTION: The initial build up voltage at the time of power source throw-in is added to a level shift circuit 10 which is actuated when its voltage reaches the sum of threshold voltage of respective MOS transistors 14 and 15 to turn on a switching MOS transistor 11 to charge a capacitor 12 the charged level of which is detected by the threshold voltage of an inverter circuit 13 to complete the initial set up. Thus, the charging of the capacitor 12 is delayed by the level shift circuit 10 thereby increasing the slope of charging voltage characteristic curve to reduce the size of the capacitor for inclusion in LSI and to shorten the initial set up time.
COPYRIGHT: (C)1979,JPO&Japio
JP634978A 1978-01-20 1978-01-20 Initial set up method Pending JPS5498948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP634978A JPS5498948A (en) 1978-01-20 1978-01-20 Initial set up method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP634978A JPS5498948A (en) 1978-01-20 1978-01-20 Initial set up method

Publications (1)

Publication Number Publication Date
JPS5498948A true JPS5498948A (en) 1979-08-04

Family

ID=11635885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP634978A Pending JPS5498948A (en) 1978-01-20 1978-01-20 Initial set up method

Country Status (1)

Country Link
JP (1) JPS5498948A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62234418A (en) * 1986-03-14 1987-10-14 ウエスタン、デジタル、コ−ポレ−シヨン Power-up reset circuit
JPH06296126A (en) * 1993-07-23 1994-10-21 Toshiba Corp Control pulse signal generating circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5347893U (en) * 1976-09-28 1978-04-22
JPS5347893A (en) * 1976-10-12 1978-04-28 Yoshihiko Ueda Automatic device for separate pouring

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5347893U (en) * 1976-09-28 1978-04-22
JPS5347893A (en) * 1976-10-12 1978-04-28 Yoshihiko Ueda Automatic device for separate pouring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62234418A (en) * 1986-03-14 1987-10-14 ウエスタン、デジタル、コ−ポレ−シヨン Power-up reset circuit
JPH06296126A (en) * 1993-07-23 1994-10-21 Toshiba Corp Control pulse signal generating circuit

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