Voltage Regulator

Assembly

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Electronic control circuit sensing battery voltage and modulating field current to hold alternator output at 13.5–14.5V DC.

Direct parts	5
Total parts	5
Used in	1 assembly
Class	Assembly

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Electronic control circuit sensing battery voltage and modulating field current to hold alternator output at 13.5–14.5V DC. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Voltage Regulator parts and their functions

5 top-level parts · 5 parts in total · full bill of materials below

Voltage Regulator parts diagram: 1 microcontroller, 2 voltage sense network, 3 field drive transistor, 4 SMD passive (R/C/L), 5 bare PCB. 5 parts in 5 top-level items. — Voltage Regulator parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Microcontroller	1×	Microcontroller or analog regulator IC monitoring voltage feedback
2	Voltage Sense Network	1×	Voltage divider and comparator detecting over/under voltage
3	Field Drive Transistor	1×	Transistor or MOSFET switch controlling rotor field coil current
4	SMD Passive (R/C/L)	1×	Filtering and timing capacitors, pull-up/pull-down resistors
5	Bare PCB	1×	Control board mounted inside alternator housing near slip rings

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Build & assembly graph

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Bill of materials for Voltage Regulator

5 top-level lines · 5 rows shown · 5 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Microcontroller	mcu	1×	1	·	part
2	Voltage Sense Network	vehicle-alternator-voltage-sense-circuit	1×	1	·	part
3	Field Drive Transistor	vehicle-alternator-field-driver	1×	1	·	part
4	SMD Passive (R/C/L)	smd-passives	1×	1	·	part
5	Bare PCB	pcb-bare	1×	1	·	part

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Where the voltage regulator is used

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

Automobiles 1 Vehicle Alternator

Used in 1 assembly

Vehicle Alternator

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

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳Foxconn foxconn.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Flex (Singapore) flex.com ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks
🇮🇳Dixon Technologies dixoninfo.com ↗	Noida, IN	Electronics contract mfg	1,000 pcs	6–10 wks
🇨🇳BYD Electronics 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