IC manufacturers ROHM

IC manufacturers (99)

ROHM BM2P014 | Demoboard aircon-board

PWM type DC/DC converter IC Included 650V MOSFET

Overview

TopologyOther Topology
Input voltage160-285 V
Output 115 V
IC revision1.0

Description

Air conditioner (A/C) designs need to meet stringent energy efficiency ratings and power factor specifications to reduce overall power consumption. High energy efficiency is achieved by using an inverter-based variable speed drive for the brushless motor-based compressor and condenser fans. The variable speed drive and the sensorless field-oriented control (FOC) of brushless motors allow an appliance to operate at an optimal power setting compared to a fixed speed single phase AC induction motor (ACIM) drive. Power factor correction (PFC) is required for all high-power appliances to connect to the electrical grid. Microchip’s Air Conditioner reference design, based on the dual core dsPIC33CH family of digital signal controllers, demonstrates efficient control of the condenser fan, compressor, PFC and the overall application logic implementation. The high-performance dsPIC33C DSCs (Dual core dsPIC33CH DSCs and Single core dsPIC33CK DSCs) offer the right set of peripherals that is ideal for dual motor control and enables replacing three controllers with one for a cost advantage in your design. This reference design has proven power stages for high power PFC (220V, 1.8 KW), condenser fan (120 W) and compressor (1.34 KW) motor control. Additional features like temperature sensor interfaces, field communications and valve drives will enable you to develop on this platform for a wide variety of air conditioner systems like window A/Cs and the outdoor unit of split A/Cs.

Features

  • Turnkey solution for Air Conditioner designs like Window A/Cs and the Outdoor Unit of Split A/Cs
  • 1.8 KW input power stage, with Digital Interleaved Boost PFC with an efficiency of greater than 90% across the operating range, 0.991 PF and <5% THD
  • Compressor Motor:
    • Supports PMSM or IPMSM
    • Up to 1.4KW Inverter Stage
    • 4 to 20kHz Switching Frequency
    • Variable Speed Motor Control
    • Sensorless FOC
    • Torque Compensation Field Weakening
    • PLL Estimator
    • Maximum Torque per Ampere (MTPA) for IPMSM
    • Stall Detection
  • Condenser FAN:
    • Supports PMSM or IPMSM
    • 150W Power Stage
    • 20kHz Switching Frequency
    • Variable Speed Motor Control
    • Sensorless FOCWind Milling
    • PLL Estimator
    • Maximum Torque per Ampere (MTPA) for IPMSM
    • Stall Detection with Recovery
  • Field communication support with the Indoor Unit
  • Optional support to use an ACIM or a built-in drive BLDC motor for the Condenser Fan
  • Four temperature sensor interfaces for measuring: Ambient Air, Inlet Air, Outlet Air and Condenser Temperature
  • Solenoid Valves and Electronic Expansion Valve (Stepper Motor) Control interfaces
  • Fly-back DC-DC to generate 15-V, 12-V, and 3.3-V power rails

Typical applications

  • household appliances
  • AC adapters

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
VersionCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Pins (Value)
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
744779068SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TI Radial Leaded Wire Wound Inductor 6.8 2.8 0.035 40 Standard 6 6.5 2.2
860020772010SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATG5 Aluminum Electrolytic Capacitors10 µF 63 2000 -40 °C up to +105 °C 42 6.3 9 2 5 11 Ammopack
860080473006SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLI Aluminum Electrolytic Capacitors100 µF 25 2000 -55 °C up to +105 °C 410 25 10 2.5 6.3 11 Ammopack
860080574014SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLI Aluminum Electrolytic Capacitors330 µF 35 3000 -55 °C up to +105 °C 1210 115.5 9 3.5 8 20 Ammopack
860080475013SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLI Aluminum Electrolytic Capacitors330 µF 25 5000 -55 °C up to +105 °C 1010 82.5 10 5 10 12.5 Ammopack
860080475016SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLI Aluminum Electrolytic Capacitors470 µF 25 5000 -55 °C up to +105 °C 1415 117.5 10 5 10 16 Ammopack
860080475018SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLI Aluminum Electrolytic Capacitors680 µF 25 5000 -55 °C up to +105 °C 1570 170 10 5 10 20 Ammopack
61300511021SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Angled Pin Header 2.54 12.7 5 Single Pin Header Angled 3 Bag
61300511121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header 2.54 12.7 5 Single Pin Header Straight 3 Bag
61300611021SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Angled Pin Header 2.54 15.24 6 Single Pin Header Angled 3 Bag
860241478003SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WCAP-AT1H Aluminum Electrolytic Capacitors10 µF 450 10000 -25 °C up to +105 °C 390 280 20 5 13 20 Ammopack
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
VersionCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Pins (Value)
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples