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Electric Toothbrush

Electric Toothbrush

Click on the subsystems above to see detailed circuit diagrams and device recommendations.

Motor Control Circuit

3 Phase Motor Control

Recommended Microcontrollers	Description
78K0S Series (KY1+, KA1+, KB1+)	10MHz, 8-bit low pin count single voltage Flash devices
78K0 Series (KB2, KC2, KD2, KE2, KF2)	20MHz Enhanced 8-bit single voltage Flash devices with LIN and IIC interfaces
V850ES Series (KE1+, KF1+, KG1+)	32 bit RISC 20MHz with IIC and LIN interfaces

Recommended MOSFETS	Description
2SK1585	N Channel, Vdss = 16V, Id = 1A, 3-pin power mini mold / TO-243
2SJ207	P Channel, Vdss = -16V, Id = -1A, SC-62 / SOT-89

Battery Charging Circuit

Instrumentation Control

Recommended Microcontrollers	Description
78K0S Series (KY1+, KA1+, KB1+)	10MHz, 8-bit low pin count single voltage Flash devices
78K0 Series (KB2, KC2, KD2, KE2, KF2)	20MHz Enhanced 8-bit single voltage Flash devices with LIN and IIC interfaces
V850ES Series (KE1+, KF1+, KG1+)	32 bit RISC 20MHz with IIC and LIN interfaces

Recommended MOSFETS	Description
2SK1586	N Channel, Vdss = 30V, Id = 1A, SC-62 / SOT-89
2SJ180	P Channel, Vdss = -30V, Id = -1A, SC-62 / SOT-89

LCD Control

Recommended Microcontrollers	Description
78K0S Series (KY1+, KA1+, KB1+)	10MHz, 8-bit low pin count single voltage Flash devices
78K0 Series (KB2, KC2, KD2, KE2, KF2)	20MHz Enhanced 8-bit single voltage Flash devices with LIN and IIC interfaces
78K0 Series (LE2, LF2, LG2)	20Mhz 8-bit MCU with integrated LCD controller


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