mikeintown
Newbie level 1
Hi ppl,
I need some help with the following circuit. Its a simple power switcher with low-voltage cutoff. The problem for me is that I initially designed it for a 0.1 Amp, 12V fan. Now I've added an additional load which draws about 3 amps but the battery/adapter cant seem to power it.
All diodes are 1n4001, both relays are 2Amp 12V DPDT, for my batteries I am using twelve 3000mAh NiMh cells.
Will I need to change some components for the circuit to work, or completely revamp it.
I need some help with the following circuit. Its a simple power switcher with low-voltage cutoff. The problem for me is that I initially designed it for a 0.1 Amp, 12V fan. Now I've added an additional load which draws about 3 amps but the battery/adapter cant seem to power it.
Code:
D2
+------------------->|--------------------+
| a |
| Ry1-1 D3 |
+-----+----+---o o------o--->|---+-----+----+
| | | | | | a | | |
| | | | | | | | |
+| [D1] [Ry1] |> |<-' | <| Ry2-1 | [Ry2] [D4]
----- |a | | | | | |a
|Power| +----+ o o------+ | +----+
|Supp.| | | | +| | |
|12 V | | | [NiMh] ---- / ---
----- | [LOAD] | |Smrt| \<--[1K]--/ \TL431
-| | | v--o |Chgr| / ---
| | | ---o ---- \ 50K |
| | | Ry2-2| -| | |
| | | | | | |
+-----+-----------+------+------+----+----------+All diodes are 1n4001, both relays are 2Amp 12V DPDT, for my batteries I am using twelve 3000mAh NiMh cells.
Will I need to change some components for the circuit to work, or completely revamp it.
