 2002 Microchip Technology Inc.

DS21360B-page 5

TC1142

FIGURE 3-2:

TC1142 PHASE 1

FIGURE 3-3:

TC1142 PHASE 2

C1+

C1+

C2+

C1–

C2–

C1+

C1–

C2+

C2–

+

+

(a)

(b)

(a) Switch positions during phase 1.

(b) The equivalent circuit of the charging phase of operation.

C1+

C1+

C1–

C1–

C2+

C2–

+

+

(a)

(b)

(a) Switch positions during phase 2.

(b) The equivalent circuit of the discharging phase of operation.

C2+

C2–