Voltage Regulator

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How does a negative high voltage regulator work?

I understand how a pos. high voltage regulator works (about 300 VDC) but the negative variety is kind of confusing to me.

How can I design a negative high voltage regulator ?
If I designed a circuit like this website (http://www.glass-ware.com/tubecircuits/Floating%20HV%20Reg.gif) but I use DC power supply ,How can I connect hot ground to cold ground in my negative high voltage regulator circiut ?

If you had a linear full wave supply, start by reversing the ground and hot diode taps, which gives neg unfiltered supply. reverse the polarity of the filter caps.

If you used an NPN, then now use a PNP pass xistor, and vice versa.

As the supply output voltage goes too neg, it gets fed back to the base of the pass xistor to shut it down a little. And if it is not neg enough, this should turn the pass xistor on harder.

your reference voltage polarity will be reversed also.

hope these tips are what you are looking for.

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IBM 74Y5457 VR9005 030G Proc VRM for Power7 Voltage Regulator 8231 E2B etc
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IBM 74Y8427 VR9005 030G Processor VRM for Power7 Voltage Regulator 8231 E2B
IBM 74Y8427 VR9005 030G Processor VRM for Power7 Voltage Regulator 8231 E2B
$139.00
IBM 74Y5905 VRM MEM CJ 9117 MMB SERVER VOLTAGE REGULATOR MODULE WARRANTY
IBM 74Y5905 VRM MEM CJ 9117 MMB SERVER VOLTAGE REGULATOR MODULE WARRANTY
$67.99
IBM 74Y5905 2BC8 Processor Voltage Regulator Module 9117 MMB MMC 9179 MHB MHC
IBM 74Y5905 2BC8 Processor Voltage Regulator Module 9117 MMB MMC 9179 MHB MHC
$94.00
IBM 74Y5907 2BC9 Voltage Regulator Module VRM 9117 MMB MMC 9179 MHB MHC pSeries
IBM 74Y5907 2BC9 Voltage Regulator Module VRM 9117 MMB MMC 9179 MHB MHC pSeries
$195.00
2x IBM 74Y8421 VR9004 030G 8205 E6B POWER 740 PROCESSOR VOLTAGE REGULATOR MODULE
2x IBM 74Y8421 VR9004 030G 8205 E6B POWER 740 PROCESSOR VOLTAGE REGULATOR MODULE
$249.99
2x IBM 74Y5451 VR9004 030G 8205 E6B POWER 740 PROCESSOR VOLTAGE REGULATOR MODULE
2x IBM 74Y5451 VR9004 030G 8205 E6B POWER 740 PROCESSOR VOLTAGE REGULATOR MODULE
$159.99
IBM 01AF398 Power Server Processor VRM Voltage Regulator Module 00MK116 ZZ
IBM 01AF398 Power Server Processor VRM Voltage Regulator Module 00MK116 ZZ
$873.95
Lot of 8 IBM 24R2696 Voltage Regulator Module VRM zj
Lot of 8 IBM 24R2696 Voltage Regulator Module VRM zj
$200.00
Lot of 8 IBM 74P4484 Voltage Regulator Module VRM zj
Lot of 8 IBM 74P4484 Voltage Regulator Module VRM zj
$200.00
IBM 74Y8269 9117 MMB SERVER VOLTAGE REGULATOR MODULE VRM MEM CJ
IBM 74Y8269 9117 MMB SERVER VOLTAGE REGULATOR MODULE VRM MEM CJ
$249.99
IBM 74Y5905 VRM MEM CJ 9117 MMB SERVER VOLTAGE REGULATOR MODULE
IBM 74Y5905 VRM MEM CJ 9117 MMB SERVER VOLTAGE REGULATOR MODULE
$99.99
IBM 74Y8271 9117 MMB SERVER VOLTAGE REGULATOR MODULE VRM 20P CJ
IBM 74Y8271 9117 MMB SERVER VOLTAGE REGULATOR MODULE VRM 20P CJ
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LOT 8 IBM 74Y5909 VRM 20P CJ 9117 MMB VOLTAGE REGULATOR MODULE VRM
LOT 8 IBM 74Y5909 VRM 20P CJ 9117 MMB VOLTAGE REGULATOR MODULE VRM
$199.99
LOT 6 IBM 74Y5903 VRM PROC CJ 9117 MMB VOLTAGE REGULATOR MODULE VRM
LOT 6 IBM 74Y5903 VRM PROC CJ 9117 MMB VOLTAGE REGULATOR MODULE VRM
$149.99
IBM 74Y5909 Voltage Regulator Module VRM for 9117 MMB MMC 9179 MHB MHC
IBM 74Y5909 Voltage Regulator Module VRM for 9117 MMB MMC 9179 MHB MHC
$39.00
IBM 74Y5909 Voltage Regulator Module VRM CCIN 2BCA 9117 MMB MMC 9179 MHB MHC yz
IBM 74Y5909 Voltage Regulator Module VRM CCIN 2BCA 9117 MMB MMC 9179 MHB MHC yz
$249.00
IBM 74Y5907 VRM Voltage Regulator Module CCIN 2BC9 9117 MMB MMC 9179 MHB MMC yz
IBM 74Y5907 VRM Voltage Regulator Module CCIN 2BC9 9117 MMB MMC 9179 MHB MMC yz
$295.00
Dell C0134 Processor VRM Voltage Regulator Module
Dell C0134 Processor VRM Voltage Regulator Module
$30.00
IBM 39J5065 13V Voltage Regulator Module VRM CCIN 6B30 yz
IBM 39J5065 13V Voltage Regulator Module VRM CCIN 6B30 yz
$35.00
IBM 4316 702X 200MHZ CPU and Voltage Regulator yz
IBM 4316 702X 200MHZ CPU and Voltage Regulator yz
$125.00
IBM 97P2642 25V Voltage Regulator Module VRM CCIN 6B12 9110 510 9111 520 yz
IBM 97P2642 25V Voltage Regulator Module VRM CCIN 6B12 9110 510 9111 520 yz
$99.00
IBM 44V6625 Memory Voltage Regulator Module VRM 95A CCIN 2A29 yz
IBM 44V6625 Memory Voltage Regulator Module VRM 95A CCIN 2A29 yz
$99.00
IBM 03N6792 25V Voltage Regulator Module 6B12 9110 510 9111 520 yz
IBM 03N6792 25V Voltage Regulator Module 6B12 9110 510 9111 520 yz
$99.00
IBM 00P4639 25V Voltage Regulator Module VRM CCIN 6B12 9110 510 9111 520 yz
IBM 00P4639 25V Voltage Regulator Module VRM CCIN 6B12 9110 510 9111 520 yz
$99.00
IBM 24P6891 905 12V VRM Voltage Regulator Module X Series 360 yz
IBM 24P6891 905 12V VRM Voltage Regulator Module X Series 360 yz
$20.00
IBM api6vr04 030L Memory Voltage Regulator Module VRM 95A CCIN 2A29 yz
IBM api6vr04 030L Memory Voltage Regulator Module VRM 95A CCIN 2A29 yz
$99.00
IBM 24R2691 Microprocessor VRM Voltage Regulator Module yz
IBM 24R2691 Microprocessor VRM Voltage Regulator Module yz
$24.99
IBM 39J5067 Vrm For X336 voltage regulator module xseries zj
IBM 39J5067 Vrm For X336 voltage regulator module xseries zj
$20.00
IBM 49P2129 VRM Card 905P xSeries Voltage Regulator Module zj
IBM 49P2129 VRM Card 905P xSeries Voltage Regulator Module zj
$30.00
New Pull IBM 97P2642 6B12 25V Voltage Regulator Module VR pSeries
New Pull IBM 97P2642 6B12 25V Voltage Regulator Module VR pSeries
$24.95
IBM 00E7160 VRM Processor Voltage Regulator Module 2B50 for 8205 E6C 8205 E6D q8
IBM 00E7160 VRM Processor Voltage Regulator Module 2B50 for 8205 E6C 8205 E6D q8
$495.00


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