mechanics-dat/mechanical-parts-dat/gear-dat/gearbox-dat/2026-03-14-13-18-38.png
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mechanics-dat/mechanical-parts-dat/gear-dat/gearbox-dat/gearbox-dat.md
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@@ -44,6 +44,14 @@ inner and outter pair
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![](2026-03-06-17-06-34.png)
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+just more nice examples
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+
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+![](2026-03-14-13-18-38.png)
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+
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+double planetary gearbox
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+
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+![](2026-03-14-13-18-54.png)
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+
47 55
### Worm Gearbox:
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49 57
These provide massive reduction in a small space (e.g., 60:1) and have a "self-locking" feature, meaning the output shaft won't turn unless the motor is spinning.
power-dat/DCDC-dat/charge-pump-dat/charge-pump-dat.md
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@@ -0,0 +1,25 @@
1
+
2
+
3
+# charge-pump-dat
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+
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+
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+
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+- [[charge-pump-dat]] - [[dcdc-boost-down-dat]] - [[power-dat]]
8
+
9
+- [[charge-pump-dat]] - [[dcdc-boost-down-dat]] - [[power-dat]] - [[constant-current-dat]] - [[CV&CC-dat]]
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+
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+- charger-pump
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+
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+
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+| Parts | Common Value | Note |
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+| ----- | ------------ | ---- |
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+
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+
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+
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+
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+
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+- [[QX2304-dat]]
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+
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+## ref
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+
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+- [[power-dat]]
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\ No newline at end of file
power-dat/DCDC-dat/dcdc-boost-down-dat/2026-03-14-13-24-00.png
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power-dat/DCDC-dat/dcdc-boost-down-dat/dcdc-boost-down-dat.md
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@@ -0,0 +1,32 @@
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+
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+
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+
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+# dcdc-boost-down-dat
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+
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+
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+- [[charge-pump-dat]] - [[dcdc-boost-down-dat]] - [[power-dat]] - [[constant-current-dat]] - [[CV&CC-dat]]
8
+
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+[TPS63020, TPS63021](https://www.ti.com/lit/ds/symlink/tps63020.pdf)
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+
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+TPS6302x High Efficiency Single Inductor Buck-boost Converter with 4-A Switches
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+
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+The TPS6302x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, a one-cell Li-ion or Li-polymer battery, supercapacitors or other supply rails. Output currents up to 3 A are supported.
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+
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+![](2026-03-14-13-24-00.png)
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+
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+
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+
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+## LTC3780
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+
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+High Efficiency, Synchronous, 4-Switch Buck-Boost Controller
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+
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+- [[LTC3780-dat]]
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+
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+## XL4015
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+
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+- [[XL4015-dat]]
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+
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+
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+## ref
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+
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+- [[dcdc-boost-down]] - [[dcdc]]
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\ No newline at end of file
power-dat/DCDC-dat/dcdc-dat.md
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@@ -8,11 +8,7 @@
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- [[dcdc-inverting-regulator-dat]]
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-
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-
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-## ref
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-
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-- [[dcdc]]
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+- [[charge-pump-dat]] - [[dcdc-boost-down-dat]] - [[power-dat]]
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18 14
# DC-dat
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@@ -40,6 +36,9 @@ legacy wiki page - https://w.electrodragon.com/w/Category:DC-DC#Schematic
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- [[high-voltage-dat]]
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+
40
+
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## ref
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+- [[dcdc]]
45 44
power-dat/charge-pump-dat/charge-pump-dat.md
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@@ -1,21 +0,0 @@
1
-
2
-
3
-# charge-pump-dat
4
-
5
-
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-
7
-- charger-pump
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-
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-
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-| Parts | Common Value | Note |
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-| ----- | ------------ | ---- |
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-
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-
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-
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-
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-
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-- [[QX2304-dat]]
18
-
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-## ref
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-
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-- [[power-dat]]
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\ No newline at end of file
power-dat/constant-current-dat/CV&CC-dat/CV&CC-dat.md
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@@ -1,6 +1,10 @@
1 1
2 2
# CV&CC-dat
3 3
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+
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+
6
+- [[charge-pump-dat]] - [[dcdc-boost-down-dat]] - [[power-dat]] - [[constant-current-dat]] - [[CV&CC-dat]]
7
+
4 8
- [[constant-current-dat]] - [[CV&CC-dat]]
5 9
6 10
power-dat/constant-current-dat/constant-current-dat.md
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@@ -4,6 +4,7 @@
4 4
5 5
- [[constant-current-dat]] - [[CV&CC-dat]]
6 6
7
+- [[charge-pump-dat]] - [[dcdc-boost-down-dat]] - [[power-dat]] - [[constant-current-dat]] - [[CV&CC-dat]]
7 8
8 9
## apps
9 10