CN204696927U

CN204696927U - Very Low Clearance DC/DC dual-output power supply module

Info

Publication number: CN204696927U
Application number: CN201520435012.7U
Authority: CN
Inventors: 张云鹏; 司开源; 许艳华; 李凤军
Original assignee: Aerospace Changfeng Chaoyang Power Supply Co Ltd
Current assignee: Aerospace Changfeng Chaoyang Power Supply Co Ltd
Priority date: 2015-06-24
Filing date: 2015-06-24
Publication date: 2015-10-07
Anticipated expiration: 2025-06-24

Abstract

The utility model discloses a kind of Very Low Clearance DC/DC dual-output power supply module, direct current input exports to power transformer T1, T2 through input filter, export two-way direct current through power transformer T1, T2, export two-way direct current through rectification circuit, LC filter circuit and output filter respectively; The two-way that two-way feedback and protective circuit input are connected respectively to LC filter circuit exports, two-way feedback and protective circuit export two control input ends being connected respectively to pwm control circuit, and the output of pwm control circuit regulates input voltage pulsewidth by metal-oxide-semiconductor Q1 and Q2; This power module adopts low clearance power component, one side design, and achieve under the requirement of 2 to 30W power and performance level, module height is not more than 6.5 millimeters, and power density can reach 37W/in3; Adopt standardization, Seriation Design, the parameter requests such as most of input voltage, output voltage and power can be adapted to.

Description

Very Low Clearance DC/DC dual-output power supply module

Technical field

The utility model relates to a kind of power module, specifically, relates to a kind of Very Low Clearance DC/DC dual-output power supply module.

Background technology

At present, known.Under normal circumstances, the height of standard isolated DC/DC doubleway output converter is 12.7 millimeters or 10.16 millimeters, the height of the general isolated DC/DC doubleway output converter of part can be low to 8 millimeters, and seldom special isolated DC/DC doubleway output converter height can lower than 7 millimeters.But also exist as few in kind, nonstandardized technique tandem product, need peripheral cell filtering, the measure that the additional type of cooling etc. are different just can use.

Utility model content

A kind of Very Low Clearance DC/DC dual-output power supply module that the utility model designs to solve the problems of the technologies described above just.

The utility model solves the technical scheme that its technical problem adopts:

A kind of Very Low Clearance DC/DC dual-output power supply module, comprises filter, transformer, rectification circuit, LC filter circuit, pwm control circuit and feedback and protective circuit.Direct current input exports to power transformer T1, T2 through input filter, exports two-way direct current through power transformer T1, T2, exports two-way direct current respectively through rectification circuit, LC filter circuit and output filter; The two-way that two-way feedback and protective circuit input are connected respectively to LC filter circuit exports, two-way feedback and protective circuit export two control input ends being connected respectively to pwm control circuit, and the output of pwm control circuit regulates input voltage pulsewidth by metal-oxide-semiconductor Q1 and Q2; Power transformer is selected not higher than the transformer of 5 millimeters; Control circuit element is selected not higher than the components and parts of 1.6 millimeters, and wherein control chip adopts LM5032 to realize a chip controls two groups of independence output circuits; Power component is selected not higher than the components and parts of 1 millimeter; Filter capacitor adopts highly not higher than the filter capacitor of 2.5 millimeters; The thickness of control board and power amplifier board is all not more than 0.5 millimeter, and control board and power amplifier board circuit board adopt double-sided wiring, one side cloth member patten's design, reduce bottom thickness; The thickness of insulating barrier is not more than 0.2 millimeter, and the thickness at the bottom of shell is not more than 0.3 millimeter.

Described Very Low Clearance DC/DC dual-output power supply module, selection low-loss, plane P AK potted element ensure fabric swatch area, and guaranteed output density is not less than 37W/in3.

Described Very Low Clearance DC/DC dual-output power supply module, its input and output lead-in wire all adopts end face fixed form, avoids the fixing increase in bottom surface thickness.

Its constrained input of Very Low Clearance DC/DC dual-output power supply module is isolated, and isolation voltage is not less than DC500V; Whole height is all not more than 6.5 millimeters, and input voltage covers DC6-DC80V, and output voltage covers DC3.3V-DC36V, power density can more than 37W/in3.

The utility model has following advantages:

1, be highly not more than 6.5 millimeters, meet low back trend;

2, power density can reach 37W/in3, meets trend toward miniaturization with power level;

3, plane radiating mode, natural cooling effect is better, without the need to additional cooling measure;

4, standardization, tandem product design, can adapt to the parameter requests such as most of input voltage, output voltage and power, adaptability is wider.

Subordinate list illustrates: table 1, table 2 are characteristic and the height dimension of contrast the utility model product and existing market existing product.

The external characteristic described in representative products of table 1 and height dimension

Manufacturer	Series	Highly (mm)	Power density (W/in ³）	Explanation
					Vicor	VIBRICK	9.5	≤145	Peripheral cell, pressure cooling use
TDK-LAMBDA	CC-E series	7.5-8.4	≤28.5	Kind is few
					Interpoint	SLH	6.86	7.1	Kind is few, power is low

Table 2 Very Low Clearance DC/DC power module characteristic and three-dimensional dimension

The beneficial effects of the utility model achieve under the requirement of 2 to 30W power and performance level, and module height is not more than 6.5 millimeters, and power density can reach 37W/in3; Adopt standardization, Seriation Design, the parameter requests such as most of input voltage, output voltage and power can be adapted to.

Accompanying drawing explanation

Fig. 1 is the utility model functional block diagram.

Fig. 2 is the utility model schematic diagram.

Fig. 3 is the utility model example IMZZL2A power module profile front view.

Fig. 4 is the utility model example IMZZL2A power module profile front view.

Fig. 5 is the utility model example IMZZL2B power module profile front view.

Fig. 6 is the utility model example IMZZL2B power module profile front view.

Fig. 7 is the utility model power module schematic layout pattern.

Fig. 8 is the utility model power module internal structure and high-level schematic.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated.

As Fig. 1,2, shown in 7 and 8, a kind of Very Low Clearance DC/DC of the utility model dual-output power supply module, comprises filter, transformer, rectification circuit, LC filter circuit, pwm control circuit and feedback and protective circuit.Direct current input exports to power transformer T1, T2 through input filter, exports two-way direct current through power transformer T1, T2, exports two-way direct current respectively through rectification circuit, LC filter circuit and output filter; The two-way that two-way feedback and protective circuit input are connected respectively to LC filter circuit exports, two-way feedback and protective circuit export two control input ends being connected respectively to pwm control circuit, and the output of pwm control circuit regulates input voltage pulsewidth by metal-oxide-semiconductor Q1 and Q2; Power transformer 1 is selected not higher than the transformer of 5 millimeters; Control circuit element 2 is selected not higher than the components and parts of 1.6 millimeters, and wherein control chip adopts LM5032 to realize a chip controls two groups of independence output circuits; Power component 4 is selected not higher than the components and parts of 1 millimeter; Filter capacitor 8 adopts highly not higher than the filter capacitor of 2.5 millimeters; The thickness of control board 3 and power amplifier board 7 is all not more than 0.5 millimeter, and control board 3 and power amplifier board 7 circuit board adopt double-sided wiring, one side cloth member patten's design, reduce bottom thickness; The thickness of insulating barrier 5 is not more than 0.2 millimeter, and at the bottom of shell, the thickness of 6 is not more than 0.3 millimeter.

These series of products adopt low-loss power POWER56 type MOS, PD32 and PD56 type rectifier, EE5 EED EERM12.7 type transformer, customization end face anchor leg, single-ended reverse exciting circuit or interleaving inverse excitation circuit, full SMD mode is produced.IMZZL2A power module configuration design figure see Fig. 3 and Fig. 4, IMZZL2B power module configuration design figure see Fig. 5 and Fig. 6.

As can be seen from Figure 8, power source integral height is 6.5 millimeters, and inner space is 5.8 millimeters.All element materials are all selected by designing requirement, after textural association in figure, not only can meet overall low clearance requirement, also can the various index request such as guaranteed output, voltage, insulation.

The utility model is not limited to above-mentioned preferred forms, anyone other any or akin products identical with the utility model drawn under enlightenment of the present utility model, all drops within protection range of the present utility model.

Claims

1. a Very Low Clearance DC/DC dual-output power supply module, comprises filter, transformer, rectification circuit, LC filter circuit, pwm control circuit and feedback and protective circuit; It is characterized in that: direct current input exports to power transformer T1, T2 through input filter, exports two-way direct current through power transformer T1, T2, exports two-way direct current respectively through rectification circuit, LC filter circuit and output filter; The two-way that two-way feedback and protective circuit input are connected respectively to LC filter circuit exports, two-way feedback and protective circuit export two control input ends being connected respectively to pwm control circuit, and the output of pwm control circuit regulates input voltage pulsewidth by metal-oxide-semiconductor Q1 and Q2; Power transformer (1) is selected not higher than the transformer of 5 millimeters; Control circuit element (2) is selected not higher than the components and parts of 1.6 millimeters, and wherein control chip adopts LM5032 to realize a chip controls two groups of independence output circuits; Power component (4) is selected not higher than the components and parts of 1 millimeter; Filter capacitor (8) adopts highly not higher than the filter capacitor of 2.5 millimeters; The thickness of control board (3) and power amplifier board (7) is all not more than 0.5 millimeter, and control board (3) and power amplifier board (7) circuit board adopt double-sided wiring, one side cloth member patten's design, reduce bottom thickness; The thickness of insulating barrier (5) is not more than 0.2 millimeter, and at the bottom of shell, the thickness of (6) is not more than 0.3 millimeter.

2. Very Low Clearance DC/DC dual-output power supply module according to claim 1, is characterized in that: select low-loss, plane P AK potted element to ensure fabric swatch area, guaranteed output density is not less than 37W/in3.

3. Very Low Clearance DC/DC dual-output power supply module according to claim 1, is characterized in that: input and output lead-in wire all adopts end face fixed form, avoids the fixing increase in bottom surface thickness.