Charger & Switchover Controller
AssemblyIntelligent charger maintaining battery charge at 13.8V DC and relay switching backup pump on when AC sump fails. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Charger & Switchover Controller parts and their functions
7 top-level parts · 7 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | AC to DC Charger Supply | 1× | 120V AC to 13.8V DC isolated power supply, 20–40 A rating |
| 2 | PWM Charging Circuit | 1× | PWM (pulse-width modulation) charger protecting against overcharge and thermal runaway |
| 3 | Power Loss Switchover Relay | 1× | 24V DC DPDT relay sensing AC power loss and switching to battery pump |
| 4 | AC Mains Sensor | 1× | Voltage sensor detecting presence/loss of AC utility power |
| 5 | Low Voltage Cutout | 1× | Comparator circuit disabling pump when battery voltage drops to 10.5V |
| 6 | Audible Alarm Horn | 1× | 12–24V piezo buzzer sounding when backup pump activates or battery low |
| 7 | Status Indicator LED | 1× | LED indicator showing charging status, battery health, and pump operation |
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Bill of materials for Charger & Switchover Controller
7 top-level lines · 7 rows shown · 7 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | AC to DC Charger Supply | backup-sump-pump-system-power-supply | 1× | 1 | · | part |
| 2 | PWM Charging Circuit | backup-sump-pump-system-charger-circuit | 1× | 1 | · | part |
| 3 | Power Loss Switchover Relay | backup-sump-pump-system-switchover-relay | 1× | 1 | · | part |
| 4 | AC Mains Sensor | backup-sump-pump-system-mains-sensor | 1× | 1 | · | part |
| 5 | Low Voltage Cutout | backup-sump-pump-system-low-voltage-cutout | 1× | 1 | · | part |
| 6 | Audible Alarm Horn | backup-sump-pump-system-alarm-buzzer | 1× | 1 | · | part |
| 7 | Status Indicator LED | backup-sump-pump-system-status-led | 1× | 1 | · | part |
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Where the charger & switchover controller is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$200. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
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🇨🇳JLCPCB
jlcpcb.com ↗
|
Shenzhen, CN | PCB fabrication | 100 pcs | 2–4 wks |
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🇨🇳PCBWay
pcbway.com ↗
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Shenzhen, CN | PCB fab & assembly | 100 pcs | 2–4 wks |
| scc.com.cn ↗ | Shenzhen, CN | PCB manufacturer | 100 pcs | 2–4 wks |
| shogini.com ↗ | Mumbai, IN | PCB manufacturer | 100 pcs | 2–4 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 100 pcs | 2–4 wks |