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Energy Management Controller
Based on 8-bit RISC Technology
Proprietary Power Management Algorithm
Reduces the power consumption of induction
motor systems
5V Operation
18-pin PDIP and SOIC Packages
8-bit Analog-to-Digital (A/D) Converter
Automatic Power-on Reset
Power-up Timer
Commercial and Industrial Temperature Range
Operation
Multiple parts can be slaved for three-phase oper-
ation
PACKAGE TYPE
18-Lead PDIP/SOIC
V
SS
1
P-Sense
V
SS
RESET
V
SS
ZC-Sense
TTRIG
NC
NC
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1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
V
SS
Gate Input
OSC1
OSC2
V
DD
IND
NC
NC
NC
FIGURE 1: SYSTEM BLOCK DIAGRAM
LINE IN
LINE OUT
TO MOTOR
TRIAC
MTE1122
INTRODUCTION
The MTE1122 is an Energy Management Controller IC
for single-phase induction motors. This CMOS device
is based on Microchip Technology Inc鈥檚 RISC proces-
sor core and proprietary algorithms. When combined
with some external analog components, it will provide
an electronic system that economically reduces the
operating costs of small induction motors by as much
as 58%. It will also allow motors to run cooler and with
less vibration. The system operates on single phase
110 or 220 VAC.
VOLTAGE
ZERO-CROSS
VOLTAGE AMP
CURRENT
ZERO-CROSS
V
CC
POWER
NEUTRAL IN
MTE1122
NEUTRAL OUT
FIGURE 2: ENERGY SAVINGS
60.0
50.0
40.0
Percent Savings
30.0
20.0
10.0
0.0
0
10
20
30
40
50
Percent Load
60
70
80
90
100
漏
1995 Microchip Technology Inc.
Preliminary
DS21112B-page 1
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