Power Supply - Switch Mode Power Supply and Industrial Power Supply

Switch Mode Power Supply (SMPS)

Switch mode power supply(SMPS) and Industrial Power Supply are an extraordinary array of high frequency alternative. These are the Switching Regulators offers higher efficiency then liner regulators. In addition the Power Supply SMPS can step-up, down and invert the input voltage.

Working principal of Switch Mode Power Supply
A switching regulator is a circuit that uses an inductor, a tranformer, and a capacitor as energy-storage element to tranfer energy from input to output in discrete packets. Feedback circuitry regulates the energy tranfer to maintain a canstant voltage within the load limits of the circuit.
They use some form of pulse-width modulation to alter the on time relative to the off time to effect control. The device used in this to give the constraints of frequency and the speed are power fets.
The use of power fets with fast turn-on and turn-off characteristics have made switches that operate comfortable at frequency above 100khz practical.
There are two topologies are used

Forward converters
Flyback circuits.

Forward converters are used in medium and high power applications. They can be recognizeed by their power transformer and output choke.
Flybacks are favored for low power applications because they employ a transformer that doubles as the input choke
Using a transformer as the energy-storage element also allows output voltage to be electrically isolated from the input voltage.

Advantages of Switch Mode Power Supply

Change the output to a different voltage level then the input ( step-up or step-down).
Isolate the output from the input.
Provide the user with a means to vary the output
Can get constant output at variable input.
Stabilize the output against the influence of:-
- Source changes (source effect)
- Load changes (load effect)
- Temperature changes ( temp. Effect)
- The passage of time ( time effect or drift)
Output short circuit protected.

Applications of Switch Mode Power Supply
SMPSs are having wide range of applications some of them are -

Machine tool industries
Security systems (Close Circuit Cameras)
Where the size and wight very less is required
Audio and vedio application
Support supplies with PLC?s

SMPS
IPS-01

Technical Specifications

PCB Size (mm) HxWxL (fig.5)	24x41 x61	28x44 x98	31x65 x119	31x65 x119	36x80 x137	24x41 x61	24x44 x84	35x60 x112	31x65 x119	36x80 x137	35x96 x175
Output Voltage, VDC	5	5	5	5	5	12	12	12	12	12	12
Output Current, Amp	1.0	2.5	5.0	8.0	10.0	0.5	1.0	2.0	3.0	5.0	10.0
Input Voltage, VAC	125-260	125-260	125-260	140-260	140-260	125-260	125-260	140-260	140-260	140-260	140-260
Ripple Voltage, mVDC	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80
Efficiency	92%	92%	92%	90%	90%	92%	92%	92%	92%	92%	92%
Output Load Regulation	0.10 to 0.20%	0.10 to 0.20%	0.10 to 0.20%	0.20 to 0.30%	0.20 to 0.30%	0.10 to 0.20%	0.10 to 0.20%	0.10 to 0.20%	0.10 to 0.30%	0.10 to 0.30%	0.10 to 0.30%
Box Size(mm) Fig 3 & 4
A	88		154	154	161	88	122	151	154	161	200
B	45		71	71	87	45	48	64	71	87	102
C	31		55	55	55	31	36	48	55	55	55
D	65		116	116	120	65	78	108	116	120	157
E	28		41	41	41	28		34	41	41	42
F			14	14	14			14	14	14	13
G			10	10	10			12	10	10	11
H	10		14	14	18		08	15	14	18	24
I	04		07	07	10		03	06	07	10	16
J	11		10	10	10		12	09	10	10	11

PCB Size (mm) HxWxL (fig.5)	35x60 x112	35x60 x112	36x80 x137	35x60 x112	35x60 x112	35x60 x112	31x65 x119	36x80 x137	36x96 x175	31x65 x119	36x80 x137	36x100 x162
Output Voltage, VDC	15	15	15	18	24	24	24	24	24	36	36	27.5
Output Current, Amp	1.5	2.5	4.0	1.0	1	1	2	3	5	1	2.0	4
Input Voltage, VAC	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260
Ripple Voltage, mVDC	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80
Efficiency	92%	92%	92%	92%	92%	90%	90%	90%	90%	90%	90%	90%
Output Load Regulation	0.10 to 0.20%	0.10 to 0.30%	0.10 to 0.30%	0.10 to 0.20%	0.10 to 0.30%	0.10 to 0.30%	0.10 to 0.30%	0.10 to 0.20%	0.20 to 0.30%	0.20 to 0.30%	0.20 to 0.30%	0.20 to 0.30%
Box Size(mm) Fig 3 & 4
A	151	151	161	151	151	161	200	161	200	154	161
B	64	64	87	64	64	87	102	87	102	71	87
C	48	48	55	48	48	55	55	55	55	55	55
D	108	108	120	108	108	120	157	120	157	116	120
E	34	34	41	34	34	41	42	41	42	41	41
F	14	14	14	14	14	14	13	14	13	14	14
G	12	12	10	12	12	10	11	10	11	10	10
H	15	15	18	15	15	18	24	18	24	14	18
I	06	06	10	06	06	10	16	10	16	07	10
J	09	09	10	09	09	10	11	10	11	10	10

PCB Size (mm) HxWxL (fig.5)	28x54 x94	31x75x119	28x54 x94	35x60 x112	36x85 x137	36x85 x137	36x120 x115	24x87x97
Output Voltage, VDC	+/-5	+/-5	+/-12	+/-12	+/-12	+/-15	12-72 and - 24	12 V with 7AH Battery Charger	12 V with 14AH Battery Charger	12 V with 21AH Battery Charger	24 V with 30AH Battery Charger	24 V with 30AH Battery Charger
Output Current, Amp	1.0	2.5	0.5	1.0	2.0	1.5	2, 0.1 and 0.2	1.0	3.0	5.0	2.0	3.0
Input Voltage, VAC	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260	140-260
Ripple Voltage, mVDC	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80	50-80
Efficiency	92%	92%	92%	92%	92%	92%	85%	85%	85%	85%	85%	85%
Output Load Regulation	0.10 to 0.20%	0.10 to 0.20%	0.10 to 0.20%	0.10 to 0.20%	0.10 to 0.20%	0.10 to 0.20%		0.10 to 0.20%	0.20 to 0.30%	0.20 to 0.30%	0.20 to 0.30%	0.20 to 0.30%