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Coil Feedback Circuit

Assembly

Monitors relay coil current to detect solenoid shorts and feed disconnection, triggers fault condition. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Coil Feedback Circuit parts and their functions

4 top-level parts · 4 parts in total · full bill of materials below
Coil Feedback Circuit parts diagram: 1 sense resistor, 2 op-amp, 3 comparator, 4 feedback PCB. 4 parts in 4 top-level items.
Coil Feedback Circuit parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Sense Resistor 1× 1 kΩ 1% tolerance sense resistor in coil return
2 Op-Amp 1× Precision op-amp monitors coil current
3 Comparator 1× Detects abnormal coil current (open/short)
4 Feedback PCB 1× Single-layer board, feedback amplifier circuit

3D model

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Build & assembly graph

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Bill of materials for Coil Feedback Circuit

4 top-level lines · 4 rows shown · 4 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Sense Resistor two-hand-control-station-feedback-resistor 1× 1 · part
2 Op-Amp two-hand-control-station-feedback-opamp 1× 1 · part
3 Comparator two-hand-control-station-feedback-comparator 1× 1 · part
4 Feedback PCB two-hand-control-station-feedback-pcb 1× 1 · part

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Where the coil feedback circuit is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used 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 $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗
Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
flex.com ↗ Singapore Electronics contract mfg 1,000 pcs 6–10 wks
dixoninfo.com ↗ Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
bydelectronic.com ↗ Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗
Singapore Electronics contract mfg 1,000 pcs 6–10 wks