JPS6416226A - Voltage regulator for vehicle charging generator - Google Patents
Voltage regulator for vehicle charging generatorInfo
- Publication number
- JPS6416226A JPS6416226A JP17195487A JP17195487A JPS6416226A JP S6416226 A JPS6416226 A JP S6416226A JP 17195487 A JP17195487 A JP 17195487A JP 17195487 A JP17195487 A JP 17195487A JP S6416226 A JPS6416226 A JP S6416226A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- current
- capacitor
- time interval
- output voltage
- 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.)
- Granted
Links
Landscapes
- Control Of Charge By Means Of Generators (AREA)
Abstract
PURPOSE:To prevent erroneous provision of battery overcharge alarm, by determining the ratio of current levels to be fed from a charging current source and a discharging current source based on a ratio between the ripple component in output voltage and a limit voltage. CONSTITUTION:When the time interval where output voltage V0 of a charging generator exceeds over a limit voltage because of its ripple component is T1, the time interval where the output voltage V0 is lower than the limit voltage is T2 and current level of constant power sources 44, 3 are i0, i1, there is a relation shown by a formula. i2 represents discharge current level when a current mirror circuit 4 operates. When the output voltage V0 drops below the limit voltage, output of a comparator 1 goes to '1' to disable the current mirror circuit 4 so as to charge a capacitor 2 with constant current i1. The constant current i2 is T1/T2 times as high as the constant current i2, and voltage Vd of the capacitor 2 is reset during the time interval T2. Since the voltage Vd of capacitor does not drop to an alarm voltage VB, erroneous alarm is not provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62171954A JP2586420B2 (en) | 1987-07-09 | 1987-07-09 | Voltage regulator for vehicle charging generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62171954A JP2586420B2 (en) | 1987-07-09 | 1987-07-09 | Voltage regulator for vehicle charging generator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6416226A true JPS6416226A (en) | 1989-01-19 |
JP2586420B2 JP2586420B2 (en) | 1997-02-26 |
Family
ID=15932856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62171954A Expired - Fee Related JP2586420B2 (en) | 1987-07-09 | 1987-07-09 | Voltage regulator for vehicle charging generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2586420B2 (en) |
-
1987
- 1987-07-09 JP JP62171954A patent/JP2586420B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2586420B2 (en) | 1997-02-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |